22000-3039 BUG   6     DENIS J220002.05-303832.9                                                       
                       Serendipitously discovered with SpeX near-IR imager/spectrograph.               
                       Spectral types M9 + L0, masses 0.072-0.085 and 0.069-0.083 Msun.        Bug2006b
22001+2909 BRT  60     The pair MLB 496 is identical                                           Hei1980a
22002+0822 OSO 165     G018-012. Not a common proper motion pair, based on color               Oso2004 
22003-0724 LDS4935     NLTT 52648/52649                                                        Chm2004 
22007-5002 I  1450     Heintz (1984) value of omega was corrected from 313.5 to 133.5          Hei1984a
                       degrees by Ruymaekers & Nys (1985).                                     Ruy1995 
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 8.36 +/- 8.51, 1.75, and 1.05 Msun, respectively.             Mlk2012 
                       Gomez et al. (2016) derive dynamical parallax and component masses:             
                       14.88 +/- 0.61 mas, 0.825 +/- 0.016 Msun, 0.778 +/- 0.015 Msun.         Doc2016i
22008-2827 BU  276     eta PsA = 12 PsA. Bidelman calls A a spectroscopic binary, and says a           
                       1972 plate shows a fairly strong H-alpha self-reversal.                         
22010+1626 BPM2418     [PM2000] 2554557 + [PM2000] 2554441.                                    Gvr2010 
22010+1116 BPM2419     [PM2000] 2554645 + [PM2000] 2554572.                                    Gvr2010 
22011+3915 A  1451     Usually too close for visual measures. Needs speckle.                           
                       AB,C: Possibly a 30" error in the declination of the secondary led to   Sei1908 
                       the erroneous 1894 Scheiner (1908) and WFC measures.                    WFC1998 
22011+1307 HJ  289     20 Peg.                                                                         
22013+4621 HJ 1714     B is BD+45@3762.                                                                
22015+0310 J  1726     BAL 2060.                                                                       
22015-1537 HWE  59     The fainter star is apparently BD-16@5997.                                      
22017-0925 JNN 135     The two components of the 2MASS J22014336-0925139 system that have              
                       been resolved with AstraLux have very similar brightnesses and colors,          
                       and it is therefore likely that they form a physical binary pair.               
                       Common proper motion has not yet been demonstrated.                     Jnn2012 
22017-1200 STF2851     Spectrum: G8/K0III/IV. B is BD-12@6153.                                         
22018-0952 RST4095     Position angles discordant in 1950. 220@, 5 nights.                             
22019+5506 HJ 1718     AB: HJ 1719 = STI2607. Burnham's note for HJ 1719 quotes Herschel as    Bu_1906 
                       mentioning "a third star 12m from B, 4arcsec; also a fourth." Burnham           
                       also says "The other stars referred to are 12.5m, 268.2deg:                     
                       15.9arcsec; and 12.0m, 145.4deg: 30.9arcsec." These appear to match             
                       the BC, AC, and AE pairs in the HJ 1718 mutiple system. We therefore            
                       conclude that HJ 1719AB and HJ 1718AB are the same pair.                        
22019+1407 BPM2420     [PM2000] 2555948 + [PM2000] 2555937.                                    Gvr2010 
22019+0446 STTA228     AC: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
22021+5800 TRN  34     The image rotator was in an unknown state, so two possible theta                
                       values are listed for the 2001.7341 observation - one for zenith up             
                       and one for north up.                                                   Trn2008 
           LZ Cep      The classification is from Conti & Alschuler (1971). Radial velocity    Cti1971 
                       and light curve solutions are given by Harries et al. (1998 MNRAS 295,          
                       386).                                                                   Msn1998a
22024-1658 S   802     29 Aqr. A is the Beta Lyrae-type system DX Aqr.                                 
                       A orange, B white. The spectral type A2 given in the ADS must be the            
                       companion's.                                                            B__1963a
22025-7719 SHY 786     BC: HIP 108799 + HIP 103587.                                                    
22027+1110 BPM2421     [PM2000] 2557008 + [PM2000] 2557200.                                    Gvr2010 
22028+1207 GIC 174     G018-017/G018-018.                                                              
                       NLTT 52768/52770                                                        Chm2004 
22029+4439 BU  694     A is variable, V1942 Cyg.                                                       
22029+1547 HDS3129     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 1.67 +/- 0.75, 2.80, and 1.25 Msun, respectively.             Mlk2012 
22029+1511 BPM2422     [PM2000] 2557327 + [PM2000] 2557452.                                    Gvr2010 
22031-7607 HJ 5306     A is a spectroscopic binary.                                                    
22032+5937 WNO  48     BC: Identified as WNO  18 in USN1976.                                           
22032+0157 ARG  96     BAL 1594.                                                                       
                       HJL 299.                                                                HJL1986 
22032-0113 OSO 166     G027-008.                                                                       
           LDS4938     AB: NLTT 52787/52786                                                    Chm2004 
22033+5944 STI1083     Also known as SMA 160.                                                          
22033-4816 CPO  90     Aka SKF1179.                                                            Dam2015b
22034+3634 DAM 662     Identified by Damm as ALI 450, but apparently a different system.       Dam2013 
22034-5647 VLK   1     Ba,Bb: eps Ind. Cardoso et al. (2009) derive a system mass of                   
                       0.116 +/- 0.001 Msun = 121 +/- 1 Mjup for this pair of T dwarfs.        Mcg2009 
22035+4841 ES  530     Includes V394 Lac, a Beta Lyr type eclipsing binary, P = 1.65000d.      Zas2012 
22035+0340 JNN 293     Estimated age 1000-10000 Myr; masses 0.24 +/- 0.10 and 0.13 +/- 0.04            
                       Msun; a ~6.8 au.                                                        Jnn2014 
22036+1108 BPM2423     [PM2000] 2558304 + [PM2000] 2558485.                                    Gvr2010 
22037+0318 HJ  952     BAL 2062.                                                                       
22038+6438 MCA  69     xi Cep = 17 Cep = Kurhah                                                        
                       Aa,Ab is an astrometric binary and SB2, with elements by Vickers &      Scf1976 
                       Combined solution by Farrington et al. (2014) yields masses 1.045 +/-           
                       0.032 and 0.409 +/- 0.066 Msun, as well as an orbital parallax 38.11            
                       +/- 2.82 mas.                                                           CIA2014a
           STF2863     Scarfe (1976). The McAlister (1980) orbit is from speckle               McA1980a
           xi Cep      interferometry, and in good agreement with the spectroscopic result.            
                       Mt. Wilson spectrum of B F8s. Spectrum of A: A3m.                               
                       Pourbaix gives combined solution for this resolved SB2, yielding        Pbx2000b
                       orbital parallaxes and component masses.                                        
           STF2863     AB: H 2  16.                                                            MEv2010 
22039+5949 STT 461     15 Cep.  STTA229.                                                               
                       EF: F is BD+59@2463.                                                            
                       E comp is V442 Cep, a Beta Lyr type eclipsing binary, P = 2.12919d.     Zas2012 
22039+2406 J  1246AB   POU5624.                                                                        
22039-2451 LDS6378     AC: 22039-2451 found to be same system as 22038-2450. LDS4939AB merged          
                       with LDS6378AC, LDS4939AC changed to AD.                                        
22041+7328 MLR 255     No significant movement since first resolution.                         Drd2009 
22042+3804 FYM 296     Aka CVE  13.                                                                    
22042+3507 SEI1554     A is the Mira-type variable RT Peg.                                             
22043+1720 BPM2424     [PM2000] 2559313 + [PM2000] 2559495.                                    Gvr2010 
22044+2500 POU5629     LDS1488.                                                                        
22045+2915 GRV 539     AC: Also known as GRV 538AB.                                                    
22045+1551 BU  696     AC and AE: Optical pairs, based on study of relative motion of the              
                       components using the method of apparent motion parameters.              Kiy2008 
                       CE: The previous AD pair was determined to actually be CE by Arnold.    Arn2008a
22046+3854 SEI1556     ALI 983.                                                                        
22046+1122 OSO 167     G018-021. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22048+3637 ALI 450     No star seen at AC catalog location of the purported secondary                  
                       - probably a plate flaw. Triple identified by Damm as matching ALI 450  Dam2013 
                       moved to 22034+3634.                                                            
22049+2158 GAU  18     Measured for HJ 3089 which Gauchet could not find.                      Gau1926a
22050+1223 BPM2425     [PM2000] 2560281 + [PM2000] 2560265.                                    Gvr2010 
22050+0838 OSO 168     G018-024. AB is not a common proper motion pair, based on comparison            
                       with POSS2 red plates.                                                  Oso2004 
           LDS4942     See Allen et al. (2000) for information on metallicity, age,            AlC2000 
                       galactic orbital parameters, etc.                                               
22051+6217 BU  697     19 Cep.                                                                         
           TRN  35     AD and AE: The image rotator was in an unknown state, so two possible           
                       theta values are listed for the 2001.7367 observation - one for                 
                       zenith up and one for north up.                                         Trn2008 
22052+5502 STI2612     Primary appears to be typos or plate flaw in AC catalog.                        
22052+4403 HJ 1723     AB: Also known as LYS  19 and FAL  73.                                          
22053-0125 STF2855     B is BD-02@5688.                                                                
22056+3620 TOB 224     Two 2010 measures of SEI1558 by Azcona et al. (2011) were actually of           
                       this pair.                                                              SDA2011 
22057+1223 HIP 109067  NLTT 52896. The 4.6 yr SB1 with estimated q > 0.23 and axis 53 mas is           
                       below the NICI detection limit. This is a sub-dwarf with large PM,              
                       below the main sequence.                                                Tok2012a
22058+3618 SEI1558     Secondary not seen on Aladin; apparently either a typographical error           
                       or a plate flaw in the AC Catalog.                                              
22058+3059 ES 2361     SMA.                                                                            
22058+0452 STF2856     BDS 11412 probably same star with error in position.                            
                       WHC  25.                                                                        
22058-0019 BUP 232     alp Aqr = 34 Aqr = Sadalmelik                                                   
                       Common proper motion pair with 21316-0534 = bet Aqr.                    Skf2013 
22059+4135 ES 1586     Aka DOO  90.                                                            Dam2016b
22059+3330 PLT   7     A is RZ Peg, B is RY Peg.                                               Plt1934 
22059-1155 WNO  57     GJ 4254 + LP 759-25. CPM pair.                                          Mkr2008 
22061+4159 A   407     An 11th magnitude star at 058@, 13".                                            
22061+1623 BPM2426     [PM2000] 2561783 + [PM2000] 2561926.                                    Gvr2010 
22061-0521 TOK 373     SB with preliminary 13y period (CfA) and expected semi-major axis of            
                       0".19 is tentatively resolved here for the first time at 0".07 and              
                       dK=1.7. Strangely, it was not resolved previously be speckle or AO.             
                       This is the young BY Dra variable NT Aqr and an X-ray source.           Tok2013b
22064-2047 CLO   3     Assuming a parallactic distance of 26.67 +/- 2.63 pc (Costa et al.      Jao2006 
                       2006), Konopacky et al. (2010) derive system mass 0.16 +/- 0.05 Msun.   Kon2010 
                       Dupuy et al. (2009) also reprocessed the HST/WFPC2 data originally              
                       published by Bouy et al. (2003), as well as the Gemini/Hokupa'a data    Boy2003 
                       originally published by Close et al. (2002). From their orbital         Clo2002a
                       solution they derive a total system mass of 0.15 +0.05/-0.03 Msun.              
                       Spectral types appear to be M8.0 +/- 0.5 for both components. Distance          
                       is estimated at 26.7 +2.6/-2.1 pc.                                      Dup2009b
22066+1416 HEI 293     TDT3346.                                                                        
22067-4913 RSS 566     Also known as ENO   7.                                                          
22068+7058 HJ 3096     LDS1968.                                                                        
22068+1444 BPM2427     [PM2000] 2562714 + [PM2000] 2562648.                                    Gvr2010 
22069+6405 WYL   1     Not found by Heintz at 22093+6401. This has been equated with TDT3347.  Hei1987a
22069+4752 ES 2715     B is BD+47@3694.                                                                
22069+1807 BPM2429     [PM2000] 2562935 + [PM2000] 2563110.                                    Gvr2010 
22069+1313 BPM2428     [PM2000] 2562917 + [PM2000] 2562751.                                    Gvr2010 
22070+5930 OSO 169     G232-056. None is a common proper motion pair, based on comparison              
                       with POSS2 red plates.                                                  Oso2004 
22070+2521 STT 596     iot Peg = 24 Peg. The primary is a spectroscopic binary.                        
                       Optical pair, based on study of relative motion of the components               
                       using the method of apparent motion parameters.                         Kiy2008 
           iot Peg     SB2. Combined solution by Boden et al. (1999), including visibilities   Bod1999a
                       from the Palomar Testbed Interferometer, plus spectroscopy. Authors             
                       give two very similar solutions, made using two data sets. Values were          
                       averaged in the orbit catalog.                                                  
                       See also discussion of iot Peg system by Morel et al. (2000).           Mrl2000 
                       Combined spectroscopic/astrometric solution, based on high-resolution           
                       echelle spectra plus archival PTI visibility measurements.                      
                       Derived masses 1.33249 +/- 0.00086 and 0.83050 +/-0.00055 Msun,                 
                       distance 11.534 +/- 0.019 pc.                                           Knc2010 
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 2.27 +/- 4.55, 2.36, and 1.20 Msun, respectively.             Mlk2012 
22071-5908 HJ 5316     Spectrum: G8/K1V+F/G.                                                           
                       A=SB? No SB orbit. B at 3.3" is above MS, suspicious ptm in 2MASS.      Tok2014d
22072+3555 SEI1559     ALI 223. GYL  94.                                                               
22075+3841 MLB 792     J 3158.                                                                         
22075+2538 A   308     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 3.93 +/- 2.45, 3.66, and 2.09 Msun, respectively.             Mlk2012 
22077+0913 HJ 3090     J  1792. Not found by Heintz at IDS position.                           Hei1990b
22082+2921 ALP  27     2MASSW J2208136+292121                                                          
                       Physical companionship to this ultracool dwarf ruled out based on I-J           
                       color, using I-band photometry taken at WIYN in August 2002.            AlP2007 
22082+1645 BPM2430     [PM2000] 2564634 + [PM2000] 2564663.                                    Gvr2010 
22082-4658 RST5483     alp Gru = Alnair. Not seen by Holden on four nights 1963-1969.                  
22083+4913 ES  685     Primary is V401 Lac, an Algol type eclipsing binary, P = 1.95012d.      Zas2012 
22083+2409 HDS3145     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 2.58 +/- 0.33, 2.86, and 1.00 Msun, respectively.             Mlk2012 
22086+5917 STF2872     A,BC: H 4 126.                                                          MEv2010 
22088-2546 SEE 469     Previously known as HDS3147. Pair included in the BDS but               Bu_1906 
                       removed from the ADS and IDS. It matches the HDS observation            A__1932a
                       quite well.                                                             IDS1963 
22089+1539 BPM2431     [PM2000] 2565599 + [PM2000] 2565465.                                    Gvr2010 
22091-1831 BU  170     The wide pair in the field nf is HJ 3092.                               Bu_1906 
22092+3310 BU 1511     pi 1 Peg = 27 Peg                                                               
22093+6401 FOX  44     Aka TDT3369.                                                                    
22093+4451 HJ 1735     Primary is V402 Lac, an eccentric Algol-type eclipsing binary, period           
                       3.78202d. B is BD+44@4060.                                              Zas2011 
22093+1142 OSO 170     G126-056. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22093-0755 KUI 111     LDS4947. NLTT 53061/53062                                               Chm2004 
22093-1859 HU  284     This is identical with HU, BDS 11518.                                   Doo1915a
22094+1730 BPM2432     [PM2000] 2566327 + [PM2000] 2566245.                                    Gvr2010 
22095+0542 HWE  61     BDS 11521. BU 842.                                                              
22095-0733 GJ 9769     Combined solution, based on reduction of Hipparcos intermediate                 
                       astrometric data together with spectroscopic elements from Marcy        CPS1999a
                       et al. (1999).                                                          HaI2001 
22095-1827 HJ 3092     B is BD-19@6231, spectrum A8/F0V.                                               
22100+1346 OL  222     OL  194.                                                                        
22102+6811 MLB 370     MLR 104.                                                                        
22102+0255 HJ  957     Aka BAL2063.                                                                    
22103+0137 HJ 5526     BAL 1597.                                                                       
22104+1925 BRT2527     J  2364.                                                                J__1962a
22104-0108 J  1727     BAL 628.                                                                        
22104-5158 TOK 216     Possibly triple. The 1".4 companion found with NICI cannot explain the          
                       RV variability and acceleration.                                        Tok2012a
22105+1228 BPM2433     [PM2000] 2567677 + [PM2000] 2567773.                                    Gvr2010 
22106+7008 STF2883     HJL 301.                                                                HJL1986 
                       H N 121.                                                                MEv2010 
22107+3322 GYL  73     TOB 226. No sign of a 5.9" pair, although AC2000 shows coordinates              
                       corresponding to this value. Apparently this is due to an error in the          
                       catalog coordinate, as the true declination of the B component is ~15"          
                       due north of the AC2000 coordinates for B.                                      
22108+2151 J  2365     BRT 2528.                                                                       
22109+5757 BU  436     Hough suspected a close companion, not confirmed.                               
22111+1624 BPM2434     [PM2000] 2568540 + [PM2000] 2568461.                                    Gvr2010 
22112+5049 HJ 1741     AB: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
22115+5925 lam Cep     Radial velocities are also discussed by Gies & Bolton (1986) and        Gie1986 
                       Underhill (1995 ApJS 100, 433).                                         Msn1998a
22115+1806 CHR 119     Ross 270, G126-62.                                                              
           OSO 171     G126-062. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22115+1731 HD210647    Hipparcos astrometric solution adopted some elements from the orbit of  HIP1997d
                       Griffin (1984).                                                         Grf1984b
22115-0114 BAL 629     Also known as STF2871.                                                          
22116+2716 HO  289     CD of ADS should probably read BD.                                              
22116+1803 OSO 172     G126-063. Neither is a common proper motion pair, based on comparison           
                       with POSS2 red plates.                                                  Oso2004 
22116-3428 CHR 230     Aa,Ab: This new component to the visual pair Bu 769 has moved through           
                       more than 4 deg in about 10 months, implying a period of order 60 - 70          
                       years. The wide pair has shown essentially no change since its          Bu_1887 
                       discovery by Burnham in 1879, on the other hand.                        Hrt1996b
22117+0612 OSO 173     G018-035. AC is not a common proper motion pair, based on comparison            
                       with POSS2 red plates.                                                  Oso2004 
22117-5850 HJ 5317     B is CPD-59@7774.                                                               
22118+5944 STF2880     STT 466.                                                                        
                       H 1  49.                                                                MEv2010 
22118+5650 GIC 176     The C component is G233-002.                                                    
22119+6342 STI1097     Appears to be identical with 22122+6344 BU 1512. measures merged.               
                       Farman notes a 13th magnitude star in 355@.                             Frm1907 
22120+3739 STF2876     Same as STF2864.                                                                
22121+1245 BPM2435     [PM2000] 2569827 + [PM2000] 2569969.                                    Gvr2010 
22122+5909 MLR 439     No significant movement since first resolution.                         Drd2009 
22125+1749 BPMA255     [PM2000] 2570388 + [PM2000] 2570558.                                    Gvr2010 
22126+5253 ES  146     Identical with ROE 93. Heintz confirms the BD identity.                 Hei1983a
                       A measure 1902.89 is contained in a letter from Espin to Roe. The       Es_1903 
                       measure in BDS evidently belongs to another pair.                               
22129+7318 STF2893     Spectrum composite; K0II-III+A3V.                                               
                       H 4  82.                                                                MEv2010 
22129+4555 BUR   1     Measured by Burling (2005) on DSS plate and incorrectly identified as   Bur2005 
                       HJ 1723.                                                                        
22130-4733 CPO 630     LDS 775.                                                                        
22132+2148 HJ  958     HJL 302.                                                                HJL1986 
22132-1111 BU 1215     EPIC 206135267. Primary is eclipsing binary, period 2.533d.             SJR2016 
22133+2352 HJ 1744     POU 5668.                                                                       
22137+5636 SMA 162     Also known as STI2651.                                                          
22138+2445 POU5671     J   2705.                                                                       
22138-0627 LDS4949     NLTT 53254/53255                                                        Chm2004 
22139+3943 MCA  70     A is a spectroscopic binary. Uncertain whether MCA pair is the same.            
22139+1519 BPM2436     [PM2000] 2572221 + [PM2000] 2572211.                                    Gvr2010 
22143+1711 STF2877     AB: An optical pair. Measures of the BD                                 WFC1998 
                       pair from Urban et al., Burnham, Abetti,                                Bu_1913 
                       Opik, and 2MASS were originally                                         Abt1922 
                       erroneously labelled as measures of the                                 Opi1932 
                       BC pair.                                                                TMA2003 
22143-1109 BRT2792     J 3239.                                                                         
22143-2104 H N  56     41 Aqr. Spectrum composite; K0III+F2V.                                          
22144-0845 OSO 174     LHS 3780. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22146+1728 BPM2437     [PM2000] 2573096 + [PM2000] 2573005.                                    Gvr2010 
22147+1249 BPM2438     [PM2000] 2573244 + [PM2000] 2573421.                                    Gvr2010 
22150+5703 ENG  84     23 Cep = eps Cep. A is a Delta Scuti-type variable.                             
                       B is BD+56@2744.                                                                
                       AB: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
           MWT   1     Aa,Ab: Candidate close companion to eps Cep is estimated to be of               
                       spectral type K8-M2, mass ~0.5 Msun, radius ~0.7 Rsun, temperature 3            
                       650K, age ~600 Myr. Distance from the primary >= 8.6au.                 Mwt2011 
22152-0535 A  2599     The close pair previously cataloged as MSN   1 was an error. This was           
                       verified by the null detection of Hartkopf et al. and reinspection of   Hrt2009 
                       the original data.                                                      Msn1996b
22154+5104 ES 1113     Also known as WFC 239.                                                          
22155+3450 ES  214     Also known as J  3317.                                                          
22156+3811 ES 2530     Also known as ALI 700.                                                          
22156-4121 CHR 187     Abt & Biggs (1972) note variable RV.                                    AbH1972 
22157-1809 LDS4950     NLTT 53321/53320                                                        Chm2004 
22158+4354 POP  23     Erroneously listed as companions to 22156+4352COU1981 = BD+43 4164      Pal2005c
                       rather than +43 4165.                                                           
22159+5440 BU  377     AB: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
                       AQ = BU  377Ab.                                                                 
           GIC 177     AT = G232-061/G232-062 = GJ 4268A+4269B.                                        
22159+3125 BU  477     HJL 303.                                                                HJL1986 
22161+3521 J  1211     Van Biesbroeck corrects the position by reference to BD+34@4642.        VBs1954 
22161-0705 HDS3158     Cvetkovic et al. (2014) derive spectral types G4 and  K3, masses 1.07           
                       and 0.79 Msun. Dynamical parallax is 17.56 +/- 0.44 mas.                Cve2014 
22162+4229 COU1830     TDT3433.                                                                        
22162+1145 BPM2439     [PM2000] 2575225 + [PM2000] 2575139.                                    Gvr2010 
22163+1736 BPM2440     [PM2000] 2575257 + [PM2000] 2575213.                                    Gvr2010 
22164+7321 LDS1975     NLTT 53440/53441.                                                               
22165+3708 SEI1561     ID uncertain - no sign of SEI pair, and ALADIN only indicates one               
                       Astrographic Catalog star in vicinity of Scheiner's coordinates.                
22166+0147 HJ 3102     BAL 1598.                                                                       
22166-5543 SYO   2     LDS 781. B is CPD-56@9854.                                                      
22168+1746 BPM2441     [PM2000] 2575955 + [PM2000] 2575968.                                    Gvr2010 
22169+1258 HJ  293     Also known as STF2888.                                                          
22172+1725 BRT1358     J  3350.                                                                Nsn2016 
22173-0042 STF2887     HJL 304.                                                                HJL1986 
22173-0847 LDS 782     AB: NLTT 53397/53398                                                    Chm2004 
                       This system counts as single in our statistics, even though it appears          
                       to be a triple system in reality. The reason for this is that the A             
                       component was the AstraLux target, and the BC pair at ~7.8" is outside          
                       of the completeness cut-off at 6". Since the BC pair is visible in the          
                       AstraLux images, we can nonetheless analyze it astrometrically. This            
                       pair was first reported by Beuzit et al. (2004) with rho = 0.978" and           
                       theta = 305.8deg. There are no error bars quoted, but if we assume              
                       that the quoted precision in decimal places corresponds to measurement          
                       precision, and adopt errors of 5 mas and 0.5deg, which should be                
                       conservative in that circumstance, we find that common proper motion            
                       can be confirmed at a 76 sigma confidence level. Hence, physical                
                       companionship can be confidently inferred, even if the errors should            
                       be substantially larger than what we have assumed.                      Jnn2012 
22174+1309 BPM2442     [PM2000] 2576735 + [PM2000] 2576704.                                    Gvr2010 
22174-0102 BAL 631     The secondary in the original measure appears to be either a                    
                       typographical error or a plate flaw.                                            
22175+2335 GIC 179     G127-013/G127-014.                                                              
22175-2342 HJ 5324     LDS4954.                                                                        
                       NLTT 53404/53403                                                        Chm2004 
                       WHC  27.                                                                        
22180-6249 I    20     Ling (2004) derived an orbital parallax 0".00741 and a  mass sum of     Lin2004a
                       3.68 +/- 5.03 Msun.                                                             
22181+1126 BPM2443     [PM2000] 2577549 + [PM2000] 2577478.                                    Gvr2010 
22181-0014 CHR 107     This system, first announced by McAlister and recalled in a later       McA1984b
                       McAlister paper after repeated attempts at confirmation, has been       McA1993 
                       restored. While perhaps still spurious, the subsequent confirmation or          
                       suspected duplicity (by another technique) makes the discovery                  
                       measurement somewhat more probable.                                             
22182+1414 BPM2444     [PM2000] 2577654 + [PM2000] 2577722.                                    Gvr2010 
22182-6300 LTT18565    Hipparcos astrometric solution assumes circular orbit (e = omega = 0).  HIP1997d
22185+6313 STF2896     B is BD+62@2060.                                                                
22186+0827 OSO 175     G018-039. Not a common proper motion pair, based on color and                   
                       comparison with POSS2 red plates.                                       Oso2004 
22186-6014 alp Tuc     Elements P, T, e in the astrometric solution of Alden (1939) were       Ald1939a
                       taken from the spectroscopic orbit by Spencer Jones.                            
                       Hipparcos astrometric solution adopted some elements from the orbit of  HIP1997d
                       Alden (1939).                                                           Ald1939a
22187-4954 I   303     AB: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
22189+3746 STF2894     AB: HJL 305.                                                            HJL1986 
                       AB: H 3  17.                                                            MEv2010 
22191+5607 A  1461     One component is the Beta Lyrae-type system GP Cep.                             
22193+6319 WGT   4     Only quadrants were listed in the paper; position angles were                   
                       estimated from their figure.                                                    
                       Components D, E, F, and G are IR point-like sources near the massive            
                       protostellar object S140 IRS1.                                          Wgt2002a
           BEI   2     A: SH 2-140 IRS 1. Includes monopolar nebula that extends towards the           
                       SE at a PA ~150 +/- 15deg.                                              Alv2004 
22193+0800 J   179     OL  147.                                                                        
22193-1047 STF2892     Probably a misprint in BDS Vol II: AD should read AB.                           
22195-6048 HJ 5323     B is CPD-61@6639.                                                               
                       Spectrum of system: K1/2III F2/3(IV).                                           
22199+0526 OSO 176     G018-040. Not a common proper motion pair, based on astrometry and              
                       color.                                                                  Oso2004 
22199-3642 HJ 5326     SWR 268. CPM pair                                                       Skf2004 
22202-1307 EPI  17     EPIC 206061524. Planet Hunter Object of Interest (PHOI-5b), period              
                       5.8797 +0.0018/-0.0015d.                                                SJR2016 
22204+0520 CBL 540     Aka CRB  19.                                                                    
22204-0847 LDS2941     LDS5248.                                                                        
22205+0547 HJ  962     30 Peg.                                                                         
22205-0041 SLP   1     Primary is the white dwarf PHL 5038; a model fit to its spectrum                
                       yields Teff = 8000 +/- 100K and log g = 8.2 +/0 0.2, implying a mass            
                       of 0.72 +/- 0.15 Msun and a distance of 64 +/- 10 pc.  The B                    
                       component is likely a brown dwarf, spectral type L8-L9.                 SlP2009 
22206+5349 BU  379     Bidelman classifies AB as composite gK+ early A.                                
22207+2457 STF2895     CD: Also known as POU5695.                                                      
22210+4632 HJ 1755     2 Lac. A is a spectroscopic binary.                                             
22211+5428 ES 2718     B is BD+53@2854.                                                                
22211+3744 BRT2235     Aka ES 2531.                                                                    
22211+3544 ES 2389     J  3318.                                                                        
22213+5109 VBS  36     Van Biesbroeck called this HJ 1757, BDS 11679, but it looks like        VBs1914 
                       another pair.                                                                   
22213+2820 HO  615     32 Peg.                                                                         
22214+6828 OSO 177     G241-004. None is a common proper motion pair, based on comparison              
                       with POSS2 red plates.                                                  Oso2004 
22216+1207 BPM2445     [PM2000] 2581835 + [PM2000] 2581704.                                    Gvr2010 
22217-0123 HJ 3106     gam Aqr = 48 Aqr = Sadachbia. A is a spectroscopic binary.                      
                       Optical pair, based on study of relative motion of the components               
                       using the method of apparent motion parameters.                         Kiy2008 
22220-3431 SHY 805     AB: HIP 110419 + HIP 110433.                                                    
           SHY 802     BC: HIP 110433 + HIP 109306.                                                    
22225+3021 HO  474     CD measure of Bu_1906 was erroneously also labelled as BD.                      
22226+1829 BPM2446     [PM2000] 2583171 + [PM2000] 2583192.                                    Gvr2010 
22226+0956 STTA231     B is BD+09@5031.                                                                
                       PU Peg, Beta Lyr (EB) type eclipsing binary, P = 0.862011 d.            Zas2011 
22227+2849 KU   64     CD: J 1796.                                                                     
22227+1457 BPM2447     [PM2000] 2583245 + [PM2000] 2583248.                                    Gvr2010 
22227-4152 DON1030     Spectrum K1/2III/IV.                                                            
22227-4557 I   135     pi 1 Gru = 161 Gru. A is an irregular variable.                                 
22229+1619 BB Peg      Multiple system including contact binary. Pribulla & Rucinski (2006)    Pbl2006 
                       estimate the mass of the contact pair at 1.951 Msun and the minimum             
                       mass of the wider component at 0.19 Msun.                                       
22230+5533 BAR  58     D is the Mira-type variable SU Lac.                                             
22231-4556 I   382     pi 2 Gru                                                                        
22231-6509 HJ 5327     B is CPD-65@4028.                                                               
22233+3642 ES 2070     Aka J  3319.                                                            Dam2013 
22234+3912 HJ 1759     ALI 987.                                                                        
22234+3228 WOR  11     Also known as GJ 856, this is a well studied binary with several                
                       astrometric data points over a long baseline. In Table 4, we present            
                       the AstraLux data as well as one example data point from literature,            
                       and otherwise refer to Seymour et al. (2002) for more information on    USN2002 
                       the astrometric data and a preliminary orbit fit. Lopez-Santiago et al          
                       (2006 ApJ 643, 1160) classify the system as a member of subgroup B4,            
                       with an estimated age of ~100 Myr.                                      Jnn2012 
22236+5431 ES 1021     STI2741.                                                                        
22236+5214 CHR 108     bet Lac = 3 Lac                                                                 
22236+4521 STF2902     AB: H N  64.                                                            MEv2010 
22237+2051 STF2900     33 Peg.                                                                         
                       STTA233. STFB 12.                                                               
                       AB: Additional notes may be found in Couteau (1955).                    Cou1955c
                       AC: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
                       AC: H 5  99.                                                            MEv2010 
           COU 139     CD: This may be the pair observed by Kuiper in 1934 and "suspected of   Kui1961b
                       being a very close, equal pair of 0".1". Star was not retained in the           
                       lists of Kuiper, nor in the IDS.                                        Cou1967a
22237-7248 HJ 5325     B is CPD-73@2252.                                                               
22240+0612 TOK 350     Triple system consisting of a close binary Aa,Ab with a separation of  .        
                       0".09 detected by Riddle et al. (2015) and a CPM companion with a      RAO2015  
                       separation of 171". The Aa,Ab system is unresolved in the Ks images,   .        
                       but elongated in the J images. We were unable to extract astrometry    .        
                       from the data. The separation has decreased since it was discovered    .        
                       in 2012; Tokovinin et al. (2014) resolved it with visible speckle      Tok2014a 
                       interferometry at the 4.1 m SOAR telescope on 2013.73 at 41 mas.       Rbr2015d 
22241-0450 BU  172     51 Aqr.                                                                         
                       AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 5.81 +/- 1.40, 4.96, and 2.24 Msun, respectively.  Mlk2012 
                       1976.6164: This epoch was incorrectly given as 1976.6146                McA1982b
                       AB,C: H 5  95.                                                          MEv2010 
22242+3831 BRT2236     ALI 988.                                                                        
22243-0138 GIC 180     LDS5249.  G027-026/G027-025.                                                    
                       NLTT 53754/53752                                                        Chm2004 
22246+1359 BPM2448     [PM2000] 2585544 + [PM2000] 2585676.                                    Gvr2010 
22246-4127 JC   19     B is CD-42@15902.                                                               
22246-7215 FIN 285     nu Ind. Measures uncertain, too close. Proper motion +1326 -690.                
                       Needs speckle to elicit the nature of the motion.                               
22247-0159 ALP  28     2MASSW J2224438-015852                                                          
                       Physical companionship to this ultracool dwarf ruled out based on I-J           
                       color, using I-band photometry taken at WIYN in August 2002.            AlP2007 
22248+2409 HJ 1763     52.5s p and 3' n of BD+23 4532.                                         Doo1915a
22257+1641 BPM2449     [PM2000] 2586892 + [PM2000] 2586810.                                    Gvr2010 
22259-7501 DUN 238     AB + KO    5AC + TOK 434Ba,Bb: HIP 110712 and 110719 form the 20".6             
                       pair DUN 238 AB. We observed both components. The A component has a             
                       variable RV according to the GCS, but not confirmed by Jones et al.             
                       (2002); it was unresolved. The newly found pair Ba,Bb has a period on   CPS2002b
                       the order of 10yr. Considering the distant companion                    Cab2012 
                       C found by Caballero (2012), the system contains at least 4 stars.      Tok2015c
22262+3606 BRT3254     ALI 230.                                                                        
22262-6157 HJ 5331     B is CPD-62@6336.                                                               
22263-1839 BHA  52     CPD-19@8232.                                                                    
22264+5714 STI2778     22265+5714SMA 164                                                               
22264+5534 HJ 1767     STI 2777.                                                                       
22266+0424 BU  290     34 Peg.                                                                         
                       This cannot be the close 931.3-d spectroscopic binary.                  Grf2010a
                       AB: A = 34 Peg is SB1, P=913.3d=2.55y (Griffin 2010). Also astrometric  Grf2010a
                       orbit, P=2.404y (Goldin & Makarov 2007).                                Gln2007 
22266-1645 SHJ 345     53 Aqr.                                                                         
                       AB: H N  41.                                                            MEv2010 
22267+1458 BPM2450     [PM2000] 2588140 + [PM2000] 2587991.                                    Gvr2010 
22268-5446 RST1132     CD-55@9094.                                                                     
22269+2653 COU 539     This cannot be the close 6.5-d spectroscopic binary.                    Grf2011 
22269-1152 LDS2943     NLTT 53864/53865                                                        Chm2004 
22272-0146 STF2904     BAL 269.                                                                        
22273-6458 CHR 188     del Tuc                                                                         
22274+4749 HJ 1768     B is BD+47@3801.                                                                
22274+3949 CHR 109     This system, first announced by McAlister and recalled in a later       McA1984b
                       McAlister paper after repeated attempts at confirmation, has been       McA1993 
                       restored. While perhaps still spurious, the subsequent confirmation or          
                       suspected duplicity (by another technique) makes the discovery                  
                       measurement somewhat more probable.                                             
22274-3411 LDS 785     Spectra DA and M?.                                                              
22274-5800 I   137     DK Tuc, Algol (EA) type eclipsing binary, P = 5.33793 d.                Zas2011 
22275-2630 LDS3388     DEA  24.                                                                        
22275-7743 MUG  18     Exoplanet host, P=2.24d. Companion listed by Roell et al. (2012) is     Rol2012 
                       confirmed by Mugrauer & Neuhauser (2009).                               Mug2009 
22276+5730 HJ 1771     STI 2784.                                                                       
22279+0442 ENG  85     35 Peg.                                                                         
22279-0517 OSO 178     G027-029.                                                                       
22280+5742 KR   60     B is the flare star DO Cep, which is fairly active with flares of small         
                       to moderate amplitudes.                                                         
                       See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
                       AC, AE, AF, and AI: Optical pair, based on study of relative motion of          
                       the components using the method of apparent motion parameters.          Kiy2008 
                       AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 0.43 +/- 0.06, 0.42, and 0.56 Msun, respectively.  Mlk2012 
           HZE   5     Heinze et al. (2010) determine the K component is a background object.  Hze2010 
           FYM 118     The EQ pair was initially listed incorrectly as CQ.  The CD pair was            
                       initially listed incorrectly as a new CT pair.                          FyM2014b
22284-2553 LDS2944     NLTT 53929/53928                                                        Chm2004 
22285+5110 OSO 179     G215-047. None is a common proper motion pair, based on comparison              
                       with POSS2 red plates.                                                  Oso2004 
22286-6729 VIG  21     Optical/physical nature of the faint companion is undefined.            Vig2012 
22287+3514 POP  99     Possibly an identification problem with the Orlov et al. 2009 measure.  Orl2012 
22287+1333 BPM2451     [PM2000] 2590474 + [PM2000] 2590573.                                    Gvr2010 
22287-3908 SEE 473     nu Gru                                                                          
22288-0001 STF2909     A: zet 2 Aqr = 55 Aqr A                                                         
                       B: zet 1 Aqr = 55 Aqr B                                                         
                       AB: LDS4971.                                                                    
           EBE   1     The close pair has been resolved by infrared speckle interferometry             
                       (McCarthy 1983). Suspected variability of one of the components is      Mcy1983 
                       unconfirmed. Aa,Ab also known as TOK 201.                                       
                       See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
                       A perturbation of the AB orbit (period ~25y) was first noted by Strand  Str1942 
                       (1942). The mass of the third star was subsequently estimated at 0.22           
                       Msun by Harrington (1968) and 0.4 Msun by Heintz (1984). Based on       Hrr1968 
                       parallax observations, Franz (1958) associated this third star with     Hei1984c
                       the B component, while Heintz favored the A component. Ebersberger &    Fnz1958 
                       Weigelt (1979) found a close visual companion to the A component,       Ebe1979 
                       while McCarthy et al. (1982) discovered a companion to B in the near    Mcy1982b
                       infrared. Scardia et al (2010) find the astrometry of the McCarthy      Sca2010c
                       companion to be in good agreement with predictions of the perturbation          
                       orbit, so assume this orbit is associated with B.                               
                       H 2   7.                                                                MEv2010 
22290-0956 STF2907     B is BD-10@5924.                                                                
22291+1212 BPM2452     [PM2000] 2590844 + [PM2000] 2590968.                                    Gvr2010 
22291-3658 RSS  38     This previously uncataloged double star was a Hipparcos double entry            
                       system.  The first measure is determined from the individual positions          
                       listed by Rousseau et al.                                               Rss1996 
22292+5825 BU  702     A: del Cep = 27 Cep. Prototype of the Cepheid variables, P = 5.36d.             
                       A: Gallene et al. (2016) searched for close companions to del Cep,              
                       using the CHARA Array. H-band magnitude limits for separation regimes           
                       r < 25 mas, 25 < r < 50 mas, and 50 < r < 100 mas of 6.17, 5.63, and            
                       5.26 mags correspond to spectral type limits for possible companions            
                       of F0V, A1V, and B9V, respectively,                                     CIA2016a
           STFA 58     STTA235. C is variable and a spectroscopic binary.                              
                       AC: H 5   4.                                                            MEv2010 
                       C: Benedict et al. (2002) used the HST FGS3 to derive parallaxes for            
                       del Cep (3.66 +/- 0.15 mas) and its 40" companion HD 213307 = STFA 58C          
                       (3.65 +/- 0.15 mas). Residuals to the data for the C component showed           
                       long-term and non-linear trends, which they used to derive a                    
                       preliminary perturbation orbit with period 390d and a = 2.0 mas.        AST2002b
                       In addition to detecting the unresolved spectroscopic companion with            
                       P = 2202 +/- 6d a parallax of 4.09 +/- 0.16 is determined for the               
                       system from Hipparcos Intermediate Data.                                IRA2015 
                       Masses are 5.2 and 4. Msun. Estimated period = 345,000y,                        
                       a = 10,000au = 38.6".                                                   Evs2013 
22292+5451 MLR 613     Aa,Ab: TDT3541.                                                                 
22293-4330 I  1054     del 1 Gru. Variable?                                                            
22294-2840 SEE 474     AB: Duplicity doubtful, but should be tested by speckle.  Hipparcos             
                       suspected non-single.                                                           
22295+4742 MCA  71     5 Lac. A long-period (P = 41.95y) SB now resolved by interferometry.            
22296+3623 BRT3255     ALI 233.                                                                        
22296+0538 BU  844     BC: J 917.                                                              J__1957 
22298-4345 DUN 239     del 2 Gru. A is an irregular variable. B is CD-44@14934.                        
22299+5225 LEO  53     AB: Spectral type of B at Mt. Wilson is F5.                                     
22299+3912 MLB 905     ALI 991.                                                                        
22300+4851 JNN 294     Estimated age 30-300 Myr; masses 0.44 +/- 0.20 and 0.25 +/- 0.13 Msun;          
                       a ~42.7 au.                                                             Jnn2014 
22300+3234 CHR 110     38 Peg.                                                                         
                       This system, first announced by McAlister and recalled in a later       McA1984b
                       McAlister paper after repeated attempts at confirmation, has been       McA1993 
                       restored. While perhaps still spurious, the subsequent confirmed or             
                       suspected duplicity (by another technique) makes the discovery                  
                       measurement somewhat more probable.                                             
22300+0426 STF2912     The primary is a single-lined spectroscopic binary, P = 372.4 d.                
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 3.33 +/- 0.95, 3.00, and 1.35 Msun, respectively.             Mlk2012 
22301+4921 FRK  11     A is an eclipsing binary, V350 Lac. B is optical.                               
22302+2228 HU  388     Double never clearly resolved.                                          WRH1954b
                       BD +21 4772 , 4' distant, may have common proper motion (Eggen 1965).   Egg1965 
22303+5714 STT 473     Spectroscopic binary.                                                           
22303+0047 RST5485     Position corrected by Heintz.                                           Hei1980a
22305+2232 VOU  38     Many negative results make interpretation uncertain.                            
22305-0807 STF2913     H 2  59.                                                                MEv2010 
22308+5637 DOO  17     The distance to 22308+5630DOO  18 is 370.6 @ 351.5".                    Fox1925 
22308+5630 STI2805     AC: Also known as DOO  18AC.                                                    
22308+1629 BPM2453     [PM2000] 2592687 + [PM2000] 2592741.                                    Gvr2010 
22310-4926 HDO 299     AB: Primary is exoplanet host, P=951d. Roell et al.(2012 A&A 542, A92)          
                       list C at 96" as physical. Aladin: color DSS2 confirms CPM?             Tok2014d
                       B and D are not co-moving with A, but AC is CM pair.                            
           MUG   5     Followup spectroscopy confirmed the C component is a dwarf; estimated           
                       mass is 0.146 +- 0.005 Msun.                                            Mug2005 
22311+4509 LEP 108     NI   45.                                                                        
22313+5017 BU  703     alp Lac = 7 Lac.                                                                
                       Optical pair, based on study of relative motion of the components               
                       using the method of apparent motion parameters.                         Kiy2008 
22313-0633 CHR 111     Pourbaix gives combined solution for this resolved SB2, yielding        Pbx2000b
                       orbital parallaxes and component masses.                                        
                       Hipparcos astrometric solution assumes circular orbit (e = omega = 0).  HIP1997d
                       Proper quadrants determined by occultation (D. Herald, private comm.)           
                       Orbit determined by fitting revised Hipparcos intermediate astrometric          
                       data. Derived component masses 1.07 +/- 0.06 and 1.00 +/- 0.06 Msun.    Ren2010 
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 2.02 +/- 0.13, 1.98, and 1.13 Msun, respectively.             Mlk2012 
22314-0925 GIC 181     AB = G156-012/G156-013.                                                         
                       AB: NLTT 54059/54058                                                    Chm2004 
22315-3221 EHR  18     Primary is bet PsA = 17 PsA. B component is background star.            Ehr2010 
           PZ    7     AC: C is CD-32@17127.                                                           
22317+5711 SMA 166     STI 2808.                                                                       
22317-1054 58 Aqr      Hipparcos astrometric solution assumes circular orbit (e = omega = 0).  HIP1997d
22318+2953 MLB 582     J 2372.                                                                         
22320+6311 MLR  18     Aa,Ab: TDT3573.                                                                 
22320+2847 BRT 228     Probably J  2371.                                                       Nsn2016 
22321-4244 I  1455     Appears to be in rapid retrograde motion.                                       
22324+6015 HJ 1782     AC: Also known as 22326+6014BU 1514AC.                                          
22324+1606 BPM2454     [PM2000] 2594481 + [PM2000] 2594442.                                    Gvr2010 
22324-1056 STF2914     Aa,Ab: BDS has this examined by several apertures (6-40") from          Bu_1906 
                       1875-1904. Never resolved. According to Burnham: "It is therefore               
                       certain that the H companion does not exist."                                   
22325+6229 HJ 1784     STI 1113.                                                                       
22326+4307 ES  539     SMA 168.                                                                        
22326+0725 STF2915     A has been connected with BD+06@5033.                                           
                       Statistically the same parallax within the errors would indicate the            
                       components are physical.                                                        
           SHY 353     BC: HIP 111276 + HIP 110341.                                                    
22328+1024 OSO 180     G018-055. Not a common proper motion pair                               Oso2004 
22328-0557 OSO 181     G027-033. Not a common proper motion pair, based on color               Oso2004 
22329+5348 KUI 112     Proper motion +1361 +105.  The identification of this pair with the             
                       star at the quoted precise coordinates is uncertain.                            
                       Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and                  
                       spectroscopic masses 0.65 +/- 0.34, 1.18, and 0.65 Msun, respectively.  Mlk2012 
22329+4923 HU 1320     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 1.98 +/- 0.69, 2.65, and 1.25 Msun, respectively.             Mlk2012 
22329+0219 LDS4976     Noticeable difference of AB from NLTT data.                             Gel1987 
22330+6955 STF2924     Giant (A9 III) classification probably wrong.                                   
                       AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 4.28 +/- 0.89, 2.72, and 1.79 Msun, respectively.  Mlk2012 
22332+1732 OL  223     a.k.a. COU 332. In his 1968 observation Couteau notes "This is          Cou1970a
                       probably the star observed by Olivier in 1927 but not found at the      Ol_1928 
                       approximate position in the Index Catalog."                             IDS1963 
22332-0046 J   291     J 1728.                                                                         
22333-3844 SEE 475     Probably not double. However, should be checked with speckle.                   
22333-6049 MLO   7     G8/K0II+F/G.                                                                    
22334+1249 BPM2456     [PM2000] 2595677 + [PM2000] 2595703.                                    Gvr2010 
22334+1122 BPM2455     [PM2000] 2595578 + [PM2000] 2595624.                                    Gvr2010 
22334-0937 MCT  13     GJ 4282 = Steph 2018                                                            
                       Daemgen et al. (2007) derive a distance of 26.7 +/- 4.1 pc, separation  Dae2007 
                       of 41.9 +/- 6.4 au, and a predicted orbital period of 382 +89/-90 yr.           
                       Spectral types for both stars are M3.0 +/- 0.5; masses for both are             
                       0.42 +0.05/-0.06 Msun.                                                          
22338+0352 GRV 587     B component is +03 4726.                                                        
22339+1537 BPM2457     [PM2000] 2596171 + [PM2000] 2596113.                                    Gvr2010 
22340-0134 BU 1515     60 Aqr.                                                                         
22341+3920 BAG  47     Primary is the alpha2 CVn type variable V362 Lac.                               
22343-3759 UC 4769     SKF1510.                                                                        
22345+1358 J   292     TDT3598.                                                                        
22347+4042 ALR   2     Allers et al. (2009) Estimate distance at 325 +72/-50 pc, giving a              
                       projected separation of 51 +11/-8 au. Based on composite optical and            
                       near-IR spectroscopy, spectral type for both components is M6.                  
                       Individual masses for both components, based on an age of ~1 Myr, are           
                       estimated at 0.10 +0.075/-0.04 Msun.                                    Alr2009 
22350-1229 GIC 182     G156-022/G156-023.                                                              
22354+3249 ES 2270     Aka COU 736.                                                                    
22355+0234 HLD  51     A has been connected with BD+01@4632.                                           
22357+5652 HJ 1791     AB: HJL 306.                                                            HJL1986 
22357+5312 A  1470     1985.8481: Autocorrelogram was remeasured; new results in catalog               
                       Tokovinin gives combined spectroscopic/visual orbit, also yielding              
                       orbital parallax and component masses and absolute magnitudes.          Tok1993 
                       Pourbaix gives combined solution for this resolved SB2, yielding        Pbx2000b
                       orbital parallaxes and component masses.                                        
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 1.95 +/- 0.40, 1.85, and 1.26 Msun, respectively.             Mlk2012 
                       For the Horch et al. (2015) combined solution, the spectroscopic                
                       elements are fixed to those of Pourbaix (2000). Assigned spectral       Pbx2000b
                       types are G2V and G3V; derived masses 1.00 and 0.97 Msun.               Hor2015 
22357+1705 BPM2458     [PM2000] 2598252 + [PM2000] 2598177.                                    Gvr2010 
22357-2808 SHY 352     AB: HIP 111520 + HIP 110084.                                                    
22359+3938 CHR 112     8 Lac. A shows variable velocity, possibly due to motion in the Aa,Ab           
                       system. Shell star.                                                             
           STF2922     AB: H 4  86.                                                            MEv2010 
22359-2056 H 5  96     H V 96. B is BD-21@6253.                                                        
                       HJ 3122.                                                                        
                       Place by description. Harding has no star corresponding.                H__1867 
22361+7253 BU 1092     AB: LDS1995.                                                                    
                       Autocorrelogram for 1984.7042 observation was remeasured; new results           
                       are given in the catalog.                                                       
                       AB,D: HJL 307.                                                          HJL1986 
                       AB,D: SHY 810. Bayesian analysis by Shaya & Olling (2011) indicates     Shy2011 
                       very high (near 100%) probability pair is physical.                             
                       H 5  94.                                                                        
22361+6053 MLB  97     Also known as STI6328.                                                          
22362+0010 STF2921     BAL 936.                                                                        
22366-3140 DUN 241     B is CD-32@17162.                                                               
22368+1551 HEI  85     BD+15 4680, formerly assigned to HJ  1790, now assigned here.           Hei1980a
22368+1550 HJ 1790     Much fainter than advertised. BD+15 4680 belongs with HEI   85          Hei1980a
22370+3716 J  2706     ALI 457. J 3176.                                                                
22370-4035 BU  771     sig 2 Gru                                                                       
           SHY 811     AC: HIP 111643 + HIP 111594.                                                    
22375+3923 KIR   5     AC: Data from 2MASS. Kirkpatrick et al. (2001) derive spectral types    Kir2001b
                       M0V+M0V and M9.5V, conclude the C component is a CPM pair with                  
                       separation 635 au.                                                              
           HDS3211     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 0.95 +/- 0.10, 1.19, and 1.00 Msun, respectively.             Mlk2012 
22375-6706 SHY 356     AC: HIP 111686 + HIP 111566.                                                    
22376-2805 LDS 789     B is CD-28@17852.                                                               
22378-0414 HJ 5529     kap Aqr = 63 Aqr = Situla                                                       
                       The pair observed by Burnham and others is not the Herschel pair, but           
                       was incorrectly assigned to that designation. According to Burnham,             
                       "No other measures. At one time Herschel suspected a very small                 
                       companion (= H 5529) but this has never been seen since, and certainly          
                       does not exist."                                                        Bu_1913 
22380+7305 LDS1996     NLTT 54455/54454.                                                               
22381+2601 OSO 182     GD 239. Not a common proper motion pair, based on comparison with               
                       POSS2 red plates                                                        Oso2004 
22383+4511 CHR 114     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 11.95 +/- 2.82, 5.02, and 4.04 Msun, respectively.            Mlk2012 
22384-0754 A  2695     One component is variable.                                                      
                       Malkov et al. (2012) derive dynamical and spectroscopic masses                  
                       1.83 +/- 1.07 and 4.47 Msun, respectively.                              Mlk2012 
22385+1559 BPM2459     [PM2000] 2601424 + [PM2000] 2601331.                                    Gvr2010 
22385+0218 HO  479     See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
22385-1519 BLA  10     L 789-6. GJ 866. One of the nearest stars, proper motion +2340 +2270.           
                       Leinert et al. (1990) derive a combined spectroscopic/interferometric/  Lei1990 
                       photometric solution, yielding masses and temperatures, etc.                    
                        Adopted magnitude differences are as follows:                                  
                            0.20 +/- 0.13 mag    845 nm                                                
                            0.63 +/- 0.08 mag   1250 nm                                                
                            0.63 +/- 0.06 mag   1650 nm                                                
                            0.63 +/- 0.06 mag   2250 nm                                                
                            0.63 +/- 0.10 mag   3800 nm                                                
                            0.55 +/- 0.36 mag   4800 nm                                                
                       Very low mass triple. AC pair is 3.8-day SB orbiting B component.               
                       Combined spectroscopic/interferometric/parallax orbit given for AC,B            
                       by Delfosse et al. (1999). Resulting masses are placed on M-L diagram.  Del1999b
                       Combined solution from astrometry, spectroscopy, and parallax derived           
                       by Segransan et al. (2000). Solution yields mass and orbital parallax   Sgr2000 
                       determination.                                                                  
22388+4419 HO  295     Slight variability is reported.                                                 
                       Visual sec. is 552d SB2.                                                Duq1987 
                       See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
                       AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 2.26 +/- 0.16, 2.14, and 1.07 Msun, respectively.  Mlk2012 
                       AB: For the Horch et al. (2015) combined solution, the spectroscopic    Hor2015 
                       elements are fixed to those of Duquennoy (1987).                        Duq1987 
           BAG  15     Ba,Bb: There is some confusion in the literature as to whether the              
                       close Balega pair is Aa,Ab or Ba,Bb. However, Duquennoy (1987) says     Duq1987 
                       the secondary is a 552d SB2 and Horch et al. (2015) have clearly        Hor2015 
                       resolved the fainter star into a close pair and derive an orbit using           
                       the Duquennoy SB elements. The components of the close pair have                
                       therefore been changed to Ba,Bb accordingly.                                    
                       Ba,Bb: For the Horch et al. (2015) combined solution, all elements are          
                       calculated from the speckle data, but a double-lined orbit exists due           
                       to Duquennoy (1987). This orbit has similar elements to the orbit here  Duq1987 
                       except for the time of periastron passage.  Assigned spectral types             
                       for A, Ba, and Bb are F9V, G5V, and K1V; derived masses are 1.12, 0.92          
                       and 0.77 Msun.                                                          Hor2015 
22388-2037 HJ 3126     LDS4984.  A is a BY Dra-type variable, and B is a flare star. The A             
                       component is FK Aqr, a 4.1d SB2. The HJ pair has an estimated period of Tok2006 
                       2800y. The B component is a 1.8d SB1. The companion to B may be a Brown Jao2014a
                       Dwarf.                                                                          
22389+3010 CHE 331     Chevalier made an error in applying the RA offset.                      Che1908 
                       See Hartkopf (2012).                                                    Hrt2012b
22389+1931 KUI 113     40 Peg.                                                                         
22389-3527 BRT1826     Spectrum: K1/2III/IV.                                                           
22390+1850 HU  392     A 1923 measure of 16394-0306 BU 820 by Gauchet was inadvertently        Gau1925 
                       attributed to 22390+1850 and listed as new companion GAU 19AC. Error            
                       noted by Thorel (2012).                                                 Thr2012 
22390+1037 BRT3369     Originally published as BRT1959.                                        Brt1936b
                       J  3351.                                                                Nsn2016 
22391+3723 STT 475     A is a spectroscopic binary.                                                    
22392+2014 HU  393     Last position given in IDS appears to be in error. Angular motion has           
                       actually been some 10deg less than indicated.                           Wor1967b
22393+3903 S   813     10 Lac.                                                                         
           TRN  36     AC: The image rotator was in an unknown state, so two possible theta            
                       values are listed for the 2001.7339 observation - one for zenith up             
                       and one for north up.                                                   Trn2008 
           S   813     AB: H 5  97.                                                            MEv2010 
22396+3736 HO  187     Spectrum G3Ib-IICN-1CH2Fe-1 in Bright Star Catalogue.                           
22396+1121 OSO 183     G067-009. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
           LEP 110AD   Aka CRB  21.                                                                    
22397-2820 H 6 119     AB: H VI 119.                                                                   
                       HJ 5356  H N 117. Star seen (by HJ) as close double (distance 2")               
                       and registered as No. 5356: pos 59.2deg, dist. 2", mags 8 and 10,               
                       with this description: "Elegant; has a * 6m, 2.5s p, and about                  
                       100" n, which with this constitutes the coarse double star D 242.       H__1867 
22399+6143 OSO 184     G233-026. Neither is a common proper motion pair.                       Oso2004 
22402+3732 HO  188     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 4.13 +/- 2.71, 2.83, and 1.10 Msun, respectively.             Mlk2012 
22405-5750 HJ 5354     B is CPD-58@7983.                                                               
22407+2959 STF3134     Chevalier made a reduction error in converting from (dx,dy) to          Che1908 
                       (rho,theta).                                                            Hrt2012b
22407+1547 BPM2460     [PM2000] 2604048 + [PM2000] 2604027.                                    Gvr2010 
22408-0333 KUI 114     Long-period (circular) orbit preferred, but strangely low mass-sum,             
                       probably still underestimated a.                                        Sod1999 
                       Occultations indicate a third body?                                     Grf1987 
                       Equinox-1900 position was incorrectly given as 22356+0404               McA1978b
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 0.80 +/- 0.22, 2.16, and 1.17 Msun, respectively.             Mlk2012 
22409+1433 HO  296     Primary giant according to isochrone fit.                                       
                       Combined spectroscopic/astrometric solution of SB2. Calculated masses           
                       1.075 +/- 0.058 and 1.171 +/- 0.047 Msun, distance 34.43 +/- 0.34 pc.   Mut2010b
                       AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 2.17 +/- 0.33, 2.47, and 0.97 Msun, respectively.  Mlk2012 
22412+7546 LDS2000     LDS2001.                                                                        
22412+1155 BPM2461     [PM2000] 2604556 + [PM2000] 2604626.                                    Gvr2010 
22413-1045 LDS6386     NLTT 54554/54555                                                        Chm2004 
22415+4014 S   815     A is the Beta CMa-type variable DD Lac.                                         
                       H 6 121.                                                                MEv2010 
22415+1050 BU 1516     zet Peg = 42 Peg = Homam                                                        
22417+3059 CHE 368     Chevalier made a trigonometric error in deriving theta; the correct     Che1908 
                       value is 180deg - theta.                                                Hrt2012b
22418+3041 CHE 370     AC: Chevalier made a reduction error in converting from (dx,dy) to      Che1908 
                       (rho,theta).                                                            Hrt2012b
22419+2126 STF2934     One component has an unseen companion with P = 82y. It is not known             
                       with which component the probable subsystem is associated; thus,                
                       assignment to A is arbitrary.                                                   
22420+1513 HU  781     V415 Peg, Algol (EA) type eclipsing binary, P = 11.4456 d.              Zas2011 
22424+5436 HJ 3138     STI 2845.                                                                       
22424+3025 CHE 380     Possibly an error in transcribing or in precessing to generate WDS              
                       designation? The pair was at the location predicted by precessing       Hrt2012b
                       Chevalier's coordinates.                                                Che1908 
22425+4110 COU2710     AC: No closer pair seen.                                                B__1963b
                       AC: A was single in 1957, and not seen double by Heintz, who concluded  Cou1958a
                       who concluded that Espin measured another star (GCB 64). Hence the      Hei1983a
                       pair ES 1699 probably does not exist.                                           
22426-4713 COO 252     A is variable.                                                                  
                       AB: Primary is possible astrometric pair.  Jones et al. (2002)          CPS2002b
                       do not detect SB with precise RV                                        Tok2014d
22428+1100 STF2933     J  3352.                                                                Nsn2016 
22428-5751 HJ 5357     Spectral type of A may be K0.                                                   
22430+3013 BLA  11     Aa,Ab: eta Peg = 44 Peg = Matar. Spectroscopic binary resolved by               
                       speckle interferometry. Spectrum of Aa,Ab is composite; G2II-III+F0IV.          
                       Hence a quadruple system.                                                       
                       The elements P, T, e in the astrometric solution by van de Kamp &               
                       Damkoehler (1957) have been taken from the spectroscopic orbit by       Kam1957 
                       Crawford. The astrometric amplitude is marginal and not certainly real          
                       See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
                       Hipparcos astrometric solution adopted some elements from the orbit of  HIP1997d
                       Crawford (1901).                                                        Crw1901 
                       Aa,Ab: Malkov et al. (2012) derive dynamical and spectroscopic masses           
                       5.17 +/- 0.72 and 3.35 Msun, respectively.                              Mlk2012 
                       Aa,Ab: Ren & Fu (2013) calculated an astrometric orbit, combining       Ren2013 
                       Hipparcos Intermediate Astrometric Data with spectroscopic elements by          
                       Massarotti et al. (2008).                                               Msr2008 
           BU 1144     The pair BC (mags. 10.1-10.1, 0.3") is 91" distant and probably                 
                       physical; B is BD+29@4740.                                                      
                       Aka H 6  21 = S   816.                                                          
22431+4710 STT 476     B has been called a spectroscopic binary. No positive speckle results.          
                       A,BC: Additional notes may be found in Markowitz (1956).                Mrz1956 
22431+3149 CHE 338     Due to a typographical error in Che1911, the WDS designation for this           
                       pair was originally listed as 20401+3149.                                       
22431+1714 BPM2462     [PM2000] 2606650 + [PM2000] 2606719.                                    Gvr2010 
22431-0819 STF2935     AB: H 1  50 = H N 133.                                                  MEv2010 
                       Aka H N 128 = SHJ 349.                                                  Dam2011 
22432-0326 RST4710     J 1415.                                                                         
22433+4222 PAR   3     A is the Mira-type variable R Lac.                                              
22434+6744 HJ 1807     AB: HJL 308.                                                            HJL1986 
22435+3645 ALI 460     J 2405.                                                                         
22435-4125 I  1457     rho Gru                                                                         
22436+3811 ES 1997     J 3177.                                                                         
22438+1750 J   209     Pair is indeed BD+17 4798, but brighter than 9.5 magnitude listed in            
                       that catalog.                                                           J__1949a
22441+4149 STT 479     13 Lac.                                                                         
                       H N  42.                                                                MEv2010 
22441+3928 STF2942     A spectroscopic binary. Spectrum composite; K5III+K2III.                        
                       AB: STT 478.                                                                    
22441+1405 BPM2463     [PM2000] 2607642 + [PM2000] 2607682.                                    Gvr2010 
22441+1120 BPM2464     [PM2000] 2607673 + [PM2000] 2607764.                                    Gvr2010 
22442+2937 CHE 406     Originally listed with incorrect DM designation BD+28 4444, leading to          
                       poor WDS coordinates.                                                           
22444+1419 LDS1063     NLTT 54708/54709                                                        Chm2004 
22447-6007 HJ 5358     B is CPD-60@7595.                                                               
22448-0359 HJ 5359     B is BD-04@5748. Also known as STF2937.                                         
22449-0221 OSO 185     G027-045. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22449-0654 CHR 207     First detected as an occultation binary by Edwards et al.               Evn1980 
22450+6808 STT 529     A is the Algol-type system ZZ Cep.                                              
22451-0240 A  2696     See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
22452-4535 SHY 814     HIP 112330 + HIP 112337.                                                        
22453-0939 STF2939     H 3  69.                                                                MEv2010 
22455+1112 SHY 358     AD: HIP 112354 + HIP 112222.                                                    
22456+4524 LDS4995     AB: NLTT 54776/54777                                                    Chm2004 
22456-7952 HJ 5353     TOB 351.                                                                        
22457+4112 LEP 111     NI   46.                                                                        
22458+3006 CHE 421     This pair was not found at Chevalier's predicted location, nor was any  Che1908 
                       likely pair seen at other locations resulting from transposing x and y          
                       offsets from the plate center, or possibly sign errors in x and/or y.           
                       It remains the only one of his doubles from this paper not recovered.   Hrt2012b
22458+2940 CHE 423     Chevalier made  a reduction error in converting from (dx,dy) to         Che1908 
                       (rho,theta).                                                            Hrt2012b
22459+3252 CHE 425     Chevalier noted a large magnitude difference for this pair (5 mags).    Che1911 
                       The bright primary has a large proper motion along approximately the            
                       same direction as the position angle. The elongated image seen in               
                       Aladin suggests that the pair has closed in separation and the                  
                       secondary is currently lost in the primary’s glare.                     Hrt201
22461+6518 BLL  57     B is BD+64@1711.                                                                
22461+5804 STT 480     B is BD+57@2602.                                                                
22462+8138 LDS2009     NLTT 54931/54942.                                                               
22467+3226 CHE 430     The double measured by Berko (2010) is about 3' from Chevalier’s        Che191
                       coordinates, but appears to be the correct pair.                        Bko2010 
                       See Hartkopf (2012).                                                    Hrt2012b
22467+1210 HJ  301     xi Peg = 46 Peg, high-PM star.. Mt. Wilson spectral classes F3s, dM0.           
                       AB: NLTT 54819/54820                                                    Chm2004 
22467-4656 HJ 5362     A is a spectroscopic binary.                                                    
22468+4420 HER   5     A,BC: The flare star EV Lac.                                                    
22468+1901 LEP 112     NI   47.                                                                        
22469+5805 HJ 1810     DH Cep. The classification of the primary is from the UV tomographic    Pny1997 
                       analysis of Penny et al. (1997).                                        Msn1998a
22470+4446 A   189     Mt. Wilson spectral classes B8, B9.                                             
22470+0325 FAR  21     Primary is white dwarf WD 2244+031.                                     Far2005b
22471+1447 GRV 605     B component is +14 4870.                                                        
22473+2507 J  1357     POU 5750.                                                                       
22473-1609 HU  291     A=SB1, P=420d.                                                          Tok2014d
22474+1559 BPM2465     [PM2000] 2611249 + [PM2000] 2611308.                                    Gvr2010 
22476-2310 SHY 815     AC: HIP 112537 + HIP 111596.                                                    
22477-1403 STF2943     AB: tau 1 Aqr = 69 Aqr. A is a spectroscopic binary.                            
                       Optical pair, based on study of relative motion of the components               
                       using the method of apparent motion parameters.                         Kiy2008 
           GUI  38     AC: Aitken notes that Guillaume gives another measure to this system,   A__1932a
                       but neither the pair nor the original reference is found. The measure   Gui1932A
                       is assumed to be an error.                                                      
           STF2943     AB: H 5  80.                                                            MEv2010 
22478+6614 MLR  85     No significant movement since first resolution.                         Drd2009 
22478-0414 STF2944     STFB 13.                                                                        
                       AB: NLTT 54867/54868                                                    Chm2004 
                       Both A and C are classed at Mt. Wilson as G2.                                   
                       AC and BC: Optical pairs, based on study of relative motion of the              
                       components using the method of apparent motion parameters.              Kiy2008 
                       AB: H 2  57.                                                            MEv2010 
22479+1259 HU  985     BU 1037.                                                                        
                       Pair has other discoverer's names and numbers in the literature due to          
                       duplicate discovery.                                                            
22479+0336 UC  278     Aka CBL 191.                                                                    
22479-5705 B  2059     Retrograde motion.                                                              
22481-2422 WSI 138     First associated with the C component of 22577-2937, the pair was       Msn2012y
                       closely examined and found single and an optical alignment has been     Mam2013 
                       ruled out as well. The working assumption is that the pointing was      Tok2015c
                       incorrect and an unknown pair was measured.                                     
                       The non-detections listed with this pair apply to the original                  
                       identification of LP 876-10.                                                    
22484-2206 LEO  54     CD-22@16058.                                                                    
22489+1307 HJ 1811     HJL 309.                                                                HJL1986 
22489+0137 HJ  970     BAL 1599.                                                                       
22489-2850 LDS4999     NLTT 54912/54933                                                        Chm2004 
22490+6834 STF2947     Mt. Wilson spectral classes F5s and F4s.                                        
                       AB: H 1  51.                                                            MEv2010 
22490-0320 LDS5000     NLTT 54927/54930                                                        Chm2004 
22494-1045 EPI  18     EPIC 206152015. Primary is eclipsing binary candidate, period 0.809d.   SJR2016 
22494-8457 GLI 277     Also known as TOB 354.                                                          
22496-1336 H 6  97     H VI 97. tau 2 Aqr = 71 Aqr. Variable?  B is BD-14@6351.                        
22497+6612 SHY 359     HIP 112724 + HIP 112324.                                                        
22498+1210 GIC 183     LDS1065. G067-024/G067-025.                                                     
                       NLTT 54980/54983                                                        Chm2004 
22498-1104 BU 1219     AC: AC is actually a measure from the Nebula h 2180 to a star. Kept X   Dam2013 
                       X coded.                                                                        
22499+4620 HJ 1816     LDS5982.                                                                        
22499+0044 ALR   1     Allers et al. derive spectral types L3 +/- 0.5 and L5 +/- 1 for the     Alr2010 
                       primary and secondary, respectively; age of the system is roughly               
                       100 Myr. Based on luminosities and age, masses are expected to be               
                       roughly 0.029 +/- 0.006 and 0.021 +0.006/-0.009 Msun. Distance is               
                       about 56 +/- 16pc, and the orbital period is estimated at ~400 years.           
22500+5716 TOR  30     Formerly known as PAN  27.                                                      
22500-3248 HDO 301     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 3.67 +/- 1.11, 3.00, and 2.74 Msun, respectively.             Mlk2012 
22504+4157 HDS3244     A 0.9 arcsecond binary was published in 1985 and given the designation  McA1987a
                       CHR 115. This pair was subsequently deemed spurious after numerous              
                       failed confirmations. Reinspection of the 1985 data, post Hipparcos,    McA1993 
                       yielded a weak measure in good agreement with the Hipparcos                     
                       observation and subsequent speckle observations (see Mason et al.       Msn1999b
                       1999). This binary was incorrectly still listed as CHR 115 in Mason     Msn1997c
                       et al. (1997), however.                                                         
                       Primary is V360 Lac, Beta Lyr-type eclipsing binary, period 10.075d.    Zas2013 
22504-1744 DON1038     Gomez et al. (2016) derive dynamical parallax and component masses:             
                       16.10 +/- 0.89 mas, 0.644 +/- 0.017 Msun, 0.644 +/- 0.017 Msun.         Doc2016i
22505+5728 STI2873     STI2874???   The original STI2874 measure was likely of a plate flaw            
                       and it was not found in GSC.                                            Bko2009d
22506-5630 HJ 5364     LDS 796.                                                                        
22507+5535 ES 1031     VBS suspects a misprint in Espin discovery measure:                     VBs1954 
                       1910.74, 251.7@, 2.12".                                                 Es_1911 
22507+5107 HLD  54     On all 4 nights north following component looked the fainter to me.     B__1963b
22512+5712 HJ 1824     B is BD+56@2881.                                                                
22514+6142 STF2950     Spectrum composite; G8III-IV+G2IV.                                              
22514+2623 HO  482     AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 2.72 +/- 1.72, 3.57, and 1.51 Msun, respectively.  Mlk2012 
                       AB: Prieur et al. (2014) derive a dynamical parallax of 6.5 mas and a           
                       total mass of 3.6 +/- 2.9 Msun (based on the original Hipparcos         HIP1997a
                       parallax) or 2.7 +/- 1.4 Msun (based on the revised Hipparcos parallax  VlF2007 
                       of van Leeuwen 2007).                                                   Pru2014 
22516-1104 GIC 184     Aa,Ab = LDS2958 = G156-054/G156-053.                                            
           LDS 423     AB = LDS6387.                                                                   
22518+4119 HJ 1823     STTA237.                                                                        
22518+3943 HO  298     Companion not seen 1944-1946, 1969.                                             
22519+5304 HJ 3150     B is BD+52@3314. Also known as STF2951.                                         
22519-1016 LDS5009     FAR  22. Secondary is white dwarf WD 2249-105.                          Far2005b
22520+5743 A   632     Giant (K5III) classification probably wrong.                                    
                       Possible triple?                                                        Dom1953b
                       Malkov et al. (2012) derive dynamical and spectroscopic masses                  
                       1.69 +/- 0.47 and 2.34 Msun, respectively.                              Mlk2012 
22520+4319 BU  451     15 Lac.                                                                         
22521-1257 HU   93     A is the Beta Lyrae-type system SU Aqr.                                         
                       Principal component is variable star SU Aqr; it was discovered as               
                       such by Miss Leavitt (Harv. Circ. 142, 2, 1908) but character of                
                       light curve is still somewhat doubtful.                                 VBs1927a
22522+3527 BRG  35     HAT-P-8. Bergfors et al. (2013) estimate spectral types F5-F8V and              
                       M1-M3.5V.                                                               Brg2013 
           BEC   2     BC: Bechter et al. (2014) resolved the 1" companion to HAT-P-8 into 2           
                       stars, separated by 65 mas. Both components appear to be physically             
                       associated with the primary. Spectral types of the B and C components           
                       are ~M5V and ~M6V; masses are 0.22 +/- 0.03 and 0.18 +/- 0.02 Msun.     Bec2014 
22522-1730 RED  12     2MASS J22521073-1730134                                                         
                       A component spectral type probably L6 +/- 1, B component T2/T3; masses          
                       are about 0.07 and 0.06 Msun. Estimated distance is 13.6 pc.            Red2006a
22524+0950 EHR  19     Primary is sig Peg A. Called an SB in the Bright Star Catalogue.                
                       B and C components are background stars.                                Ehr2010 
22524-2142 BU  177     HDO 173                                                                         
22525+5717 TOR  31     Formerly known as PAN  28.                                                      
22525-3253 HJ 5367     gam PsA = 22 PsA. Variable? The historical data favor the Hipparcos             
                       magnitude over that of Tycho.                                                   
22525-4247 HJ 5366     B is CD-43@15179.                                                               
22525-8814 R   337     Also known as R   338 and TOB 355.                                              
22526-0735 lam Aqr     1975.802: Probably unresolved (poor seeing).                            Bla1977a
22527+6759 STTA238     AB: HJL 310.                                                            HJL1986 
                       AB: SHY 819. Bayesian analysis by Shaya & Olling (2011) indicates very  Shy2011 
                       high (near 100%) probability pair is physical.                                  
                       AB: H 6 100.                                                            MEv2010 
22527+6055 STF2953     MLR 511 misidentified and identical                                     Hei1987a
                       Primary is V453 Cep, an Algol type eclipsing binary, P = 1.18475d.      Zas2012 
22527+3459 CRB  12     Due to typographical error, entered in WDS as 20527+3459.                       
22528+2926 COU2711     AB: AGK2+29 2849. BD+28 4475. Pair not in IDS or Carte de Ciel.                 
                       Proper motion of primary should allow determination in a few years of           
                       whether the pair is physical.                                           Cou1972a
22533+6209 ES  142     A is the Beta Lyrae-type system IL Cep.                                         
22533-1416 Gl 876      IL Aqr = Ross 780 = BD-15 6290. Star+planet pair. P, T, e, and                  
                       omega in Benedict et al. (2002) solution are constrained by RV          AST2002 
                       measurements; other elements from HST FGS data. Derived parallax =              
                       214.6 +/- 0.2 mas. Assuming mass of primary is 0.32 Msun, the planet            
                       mass = 1.89 +/- 0.34 Mjup.                                                      
22535-1137 MCA  73     74 Aqr. A spectroscopic, occultation, and interferometric system. The           
                       interferometric pair is not the spectroscopic pair, so the system is            
                       at least triple.                                                        Msn1997a
                       1977.4874: Theta incorrectly given as 92.8 degrees                      McA1979b
                       First detected as an occultation binary by Blow et al.                  Blw1982a
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 23.11 +/- 7.09, 6.98, and 3.09 Msun, respectively.            Mlk2012 
22535-3054 LDS2960     NLTT 55142/55140                                                        Chm2004 
22536+3756 RUC  15     Multiple system including contact binary SW Lac. Pribulla & Rucinski            
                       (2006) estimate the mass of the contact pair at 2.196 Msun and the      Pbl2006 
                       minimum masses of the wider components at 1.89 and 0.54 Msun.                   
                       Spectral type of resolved companion estimated at K9-M0V.                Ruc2007 
22536+1647 BPM2466     [PM2000] 2617719 + [PM2000] 2617755.                                    Gvr2010 
22537+4445 BU  382     The RV of the primary is probably variable; identification of the               
                       ascending node from observations near periastron is thus tentative.     Mlr1954b
                       The visual primary is a 24d single-lined spectroscopic binary (#1406    Bte1989 
                       in Batten et al., 1989).                                                Sod1999 
22541+3527 HJ  973     ALI 10.                                                                         
22541-1152 HJ 3151     J 1418.                                                                         
22542-1323 LDS2962     LDS5987.                                                                        
22544+5538 HJ 1830     The 1917.81 Vatican Observatory measure of AC was originally            Vat1926 
                       attributed to DC.                                                               
22545+1517 LAU   5     AB,C: LDS 5016.                                                                 
22548+1511 STF2954     Delta from A to BD+14@4889 is 70.1". The motion seems to belong to B.           
22549+2415 GRV 620     This star has a probable wide companion at about 73" as noted in the            
                       WDS. It is however single in the separation range covered by the                
                       AstraLux data.                                                          Jnn2012 
22549-0922 HJ 3152     A is the irregular variable TT Aqr. Pair not found by Burnham.          Bu_1879 
22550+5132 HU  785     A premature orbit has been computed.                                            
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 8.68 +/- 8.02, 3.01, and 1.35 Msun, respectively.             Mlk2012 
22552-0459 BU  178     See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
22553-4828 I    22     AB: Direct motion, with nearly a complete revolution.                   B__1956a
                       AB,CD: SHY 362. Bayesian  analysis by Shaya & Olling (2011) indicates   Shy2011 
                       very high (near 100%) probability pair is physical.                             
           B  2506     CD: Direct motion.                                                              
22553-5713 RED  19     Spectral type L6 +/- 1, distance 10.8 +/- 3.0 pc                        Red2008a
22555+3640 ES 2721     ALI 466.                                                                        
22557+3621 HJ  975     STTA239.  B is BD+35@4916.                                                      
22557-3023 LDS5017     NLTT 55271/55272                                                        Chm2004 
22557-3119 HUE   2     Companion detected in Ks band at 1.3", and marginally detected in H             
                       band. If bound, the companion candidate would be at a distance of               
                       13pc; spectral types estimated at T8 and T9.5.                          Hue2015 
22558-0749 GIC 185     G156-065/G156-064 = GJ 9803AB.                                                  
                       HIP 113231. See Allen et al. (2000) for information on metallicity,     AlC2000 
                       age, galactic orbital parameters, etc.                                          
                       NLTT 55287/55288                                                        Chm2004 
                       B is WD, DA7.4, mass 0.52 Msun (Holberg et al. 2013)                    Hbg2013 
22559-3232 HWE  91     del PsA = 23 PsA.  BU  772.                                                     
22562+7250 STT 484     AB,C same as STF2966.                                                           
           S   820     AB,D: BDS 11988 same star.                                                      
           STF2965     DE : This is also known as BU 1520. BU  1520DE is ADS 16393.                    
                       STF2965 is ADS 16384. These are the same system.                                
22564+4136 STF2960     STTA240. A is the Beta Cep-type variable EN Lac.                                
                       AB: H 4  85.                                                            MEv2010 
22564+1727 STF2957     HIP 113280. See Allen et al. (2000) for information on metallicity,     AlC2000 
                       age, galactic orbital parameters, etc.                                          
                       AB: NLTT 55326/55327                                                    Chm2004 
22565+6252 STF2961     One component is the Beta Cep-type variable KZ Cep.                             
22567+7830 STF2971     LDS2016.                                                                        
22570+2441 COU 542     Aa,Ab is also an SB, P = 118.48d.                                               
                       Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and                  
                       spectroscopic masses 4.31 +/- 1.46, 2.15, and 0.85 Msun, respectively.  Mlk2012 
22570+1318 BPM2467     [PM2000] 2621102 + [PM2000] 2621111.                                    Gvr2010 
22570-0030 J  1419     BAL 634.                                                                        
22571-0315 STF2959     AB: Optical pair, based on study of relative motion of the components           
                       using the method of apparent motion parameters.                         Kiy2008 
                       AB: H N  15.                                                            MEv2010 
22574+1827 BPM2468     [PM2000] 2621541 + [PM2000] 2621534.                                    Gvr2010 
22575+5421 VBS  37     Also known as HJ 3157, BDS 12087.                                               
22575+2046 RBR  21     51 Peg = Helvetios.                                                             
                       2001.7340: PA is measured in zenith mode. If data collected in                  
                       equatorial mode, PA = 244.9. Confirmation of the pair should establish          
                       the correct theta value.                                                Rbr2011d
                       Based on van Leeuwen (2007) parallax, the candidate companion           VlF2007 
                       would have a separation of 45 au. Due to its relatively high proper             
                       motion, as additional observation will be able to determine whether             
                       the star shares common proper motion or is a background star.           Rbr2011d
22577-2937 KAL   1     Aa,Ab: Primary is alp PsA = Fomalhaut. Ab component is an exoplanet             
                       ~119 au from the star and ~18 au from the inner edge of the dust belt           
                       surrounding the star. Orbital motion is detected by HST observations            
                       separated by 1.73 years; the planet's mass if thought to be <3 Mjup.    Kal2008 
           SHY 106     AB: HIP 113368 + HIP 113283                                                     
                       The pair may have first been noted as a cpm pair by Luyten.             Luy1938 
           MAM   1AC   Full precision on relative position: PA = 337.9005206265515 and Sep =   Mam2013b
                       20410.120108318326" based on UCAC4 ICRS positions undated from the      Mam2013 
                       published value.                                                                
22578+3840 HJ 1832     HJL 311.                                                                HJL1986 
22578-0222 LDS5028     NLTT 55402/55403                                                        Chm2004 
22578-2606 HJ 5371     LDS5027.                                                                        
                       NLTT 55389/55388                                                        Chm2004 
22578-3312 RSS  39     This previously uncataloged double star was a Hipparcos double entry            
                       system.  The first measure is determined from the individual positions          
                       listed by Rousseau et al.                                               Rss1996 
                       SHY 822. Bayesian analysis by Shaya & Olling (2011) indicates very      Shy2011 
                       high (near 100%) probability pair is physical.                                  
           SHY 823     AC: HIP 113381 + HIP 113532.                                                    
22579+1337 HU  989     Magnitude difference for this easy pair much less than given by Hussey  B__1963a
22583+5831 MLB  99     STI2914.                                                                        
22583+3717 J  3185     ALI 467.                                                                        
22583-0224 CHR 116     An occultation binary.                                                          
22583-6111 HJ 5370     B is CPD-61@6702. Spectral type of A may be F8.                                 
22586+1203 STTA241     B is BD+11@4911.                                                                
                       HJL 312.                                                                HJL1986 
22586+1122 BPM2469     [PM2000] 2622659 + [PM2000] 2622680.                                    Gvr2010 
22586+0921 STT 536     One component is variable or eclipsing.                                 Bu_1894 
                       Most speckle observations appear to be in `wrong' quadrant.                     
                       See Baize & Petit (1989) catalog of doubles with variable component.    Baz1989d
                       AB: Malkov et al. (2012) derive dynamical, photometric, and                     
                       spectroscopic masses 2.19 +/- 0.31, 2.23, and 1.97 Msun, respectively.  Mlk2012 
22586-4531 HU 1335     Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 1.81 +/- 0.56, 1.98, and 0.98 Msun, respectively.             Mlk2012 
22587+6305 HDS3271     NY Cep, eclipsing binary of Algol type, period 15.2756d.                Zas2016 
22587-2914 LDS5030     NLTT 55437/55435                                                        Chm2004 
22589+6902 GIC 186     G241-033/G241-032.                                                              
22590-0813 STF2962     Guillaume measures 1922.58, 223.8@, 14.3".  Archer believed the 1959    Gui1931 
                       observation was of AB,C component of ADS 16418 = STN 58. However, the   Arc1960 
                       Stone pair was determined to actually be ADS 16208 = STF2935AB.         Stn1878 
22591+1600 BPM2470     [PM2000] 2623184 + [PM2000] 2623078.                                    Gvr2010 
22592+1144 STT 483     52 Peg. Alternative spectrum: A8V+F6V.                                          
                       Period error +27.8/-22.7y. The Hipparcos parallax (12.26 +/- 0.94 mas)          
                       plus these elements yields a mass sum of 3.07; given the errors in              
                       parallax and period, however, the mass sum could be well over 4. The            
                       primary is spectral type A8V; the secondary may be a main-sequence F            
                       star. (Element errors and additional information from Alzner (private           
                       communication).                                                         Alz2007 
                       Malkov et al. (2012) derive dynamical, photometric, and spectroscopic           
                       masses of 4.84 +/- 1.37, 3.14, and 1.89 Msun, respectively.             Mlk2012 
22592-0052 JMS   6     AB: 2MASS J22590929-0051556 + 2MASS J22591388-0051581.                          
                       The C component is 2MASS J22590491-0052407.                             Jms2008 
22592-1034 AOT 120     WDS designation corrupted - should be 22592-0830                                
22592-1736 LEO  30     The 1923 measure by Przbyllok belongs to another pair.                          
22593+1212 OSO 186     G067-038. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22593+0807 BFR  13     HD 217246 + 2MASS J22591631+0806556. Baron et al. (2015) estimate               
                       spectral types G5 and M6.5 +/- 0.5, distances 68 +70/-32 and                    
                       121 +20/-51 pc, masses 0.821-0.930 and 0.096-0.113 Msun.                BFr2015 
22595+1825 BPM2471     [PM2000] 2623619 + [PM2000] 2623629.                                    Gvr2010 
22595+0058 BAR  18     2 Psc.                                                                          
22596-0702 DEA   2     A,BC: The primary is a late-K star, while the secondary is a pair of            
                       M4.5 +/- 0.5 dwarfs, separated by 1-2" in SDSS images.                  Dea2013 
22597+7539 OSO 187     G242-019. Not a common proper motion pair, based on comparison with             
                       POSS2 red plates.                                                       Oso2004 
22597+2553 MLB 727     Not found by Heintz at IDS position.                                    Hei1990b
22597-0422 STF2964     H N  90.                                                                MEv2010 
22598-1624 TOK 374     First resolution at 0".21 is secure and hints at a 30y period, but the          
                       preliminary SB orbit from CfA has a 9y period and corresponds to a              
                       0".09 semimajor axis.                                                   Tok2013b
22599+1822 BPM2472     [PM2000] 2623960 + [PM2000] 2623968.                                    Gvr2010