Information Circular
The lists of new binaries and orbital elements which have traditionally comprised the Circulars were recently supplemented by bibliographies of recently published binary star papers. Both paper and electronic mail versions of the Circular are published by Drs. Docobo and Ling. Contributions to this most worthwhile publication should be sent to the authors at joseangel.docobo@usc.es or josefina.ling@usc.es, respectively.
We join all binary star astronomers in expressing our gratitude to Drs. Muller and Couteau for their major efforts over the past 40 years, as well as to Drs. Docobo and Ling for their continuation and expansion of this effort. Thanks should also go to the Universidade de Santiago de Compostela, for their financial assistance in the publication of these Circulars.

Available Circulars
- Circular No. 196 (Oct 2018; pdf version)
- Circular No. 195 (Jun 2018; pdf version)
- Circular No. 194 (Feb 2018; pdf version)
- Circular No. 193 (Oct 2017; pdf version)
- Circular No. 192 (Jun 2017; pdf version)
- Circular No. 191 (Feb 2017; pdf version)
- Circular No. 190 (Oct 2016; pdf version)
- Circular No. 189 (Jun 2016; pdf version)
- Circular No. 188 (Feb 2016; pdf version)
- Circular No. 187 (Oct 2015; pdf version)
- Circular No. 186 (Jun 2015; pdf version)
- Circular No. 185 (Feb 2015) also (postscript version) also (pdf version)
- Circular No. 184 (Oct 2014) also (postscript version) also (pdf version)
- Circular No. 183 (Jun 2014) also (postscript version) also (pdf version)
- Circular No. 182 (Feb 2014) also (postscript version) also (pdf version)
- Circular No. 181 (Oct 2013) also (postscript version) also (pdf version)
- Circular No. 180 (Jun 2013) also (postscript version) also (pdf version)
- Circular No. 179 (Feb 2013) also (postscript version) also (pdf version)
- Circular No. 178 (Oct 2012) also (postscript version) also (pdf version)
- Circular No. 177 (Jun 2012) also (postscript version) also (pdf version)
- Circular No. 176 (Feb 2012) also (postscript version) also (pdf version)
- Circular No. 175 (Oct 2011) also (postscript version) also (pdf version)
- Circular No. 174 (Jun 2011) also (postscript version) also (pdf version)
- Circular No. 173 (Feb 2011) also (postscript version) also (pdf version)
- Circular No. 172 (Oct 2010) also (postscript version) also (pdf version)
- Circular No. 171 (Jun 2010) also (postscript version) also (pdf version)
- Circular No. 170 (Feb 2010) also (postscript version) also (pdf version)
- Circular No. 169 (Oct 2009) also (postscript version) also (pdf version)
- Circular No. 168 (Jun 2009) also (postscript version) also (pdf version)
- Circular No. 167 (Feb 2009) also (postscript version) also (pdf version)
- Circular No. 166 (Oct 2008) also (postscript version) also (pdf version)
- Circular No. 165 (Jun 2008) also (postscript version) also (pdf version)
- Circular No. 164 (Feb 2008) also (postscript version) also (pdf version)
- Circular No. 163 (Oct 2007) also (postscript version) also (pdf version)
- Circular No. 162 (Jun 2007) also (postscript version) also (pdf version)
- Circular No. 161 (Feb 2007) also (postscript version) also (pdf version)
- Circular No. 160 (Oct 2006) also (postscript version) also (pdf version)
- Circular No. 159 (Jun 2006) also (postscript version)
- Circular No. 158 (Feb 2006) also (postscript version)
- 2005 Triennial Report (Sep 2005) also (pdf version)
- Circular No. 157 (Oct 2005) also (postscript version)
- Circular No. 156 (Jun 2005) also (postscript version)
- Circular No. 155 (Feb 2005) also (postscript version)
- Circular No. 154 (Oct 2004) also (postscript version)
- Circular No. 153 (Jun 2004) also (postscript version)
- Circular No. 152 (Feb 2004) also (postscript version)
- Circular No. 151 (Oct 2003) also (postscript version)
- Circular No. 150 (Jun 2003) also (postscript version)
- Circular No. 149 (Feb 2003) also (postscript version)
- Circular No. 148 (Oct 2002) also (postscript version)
- 2002 Triennial Report (Jul 2002) also (postscript version)
- Circular No. 147 (Jun 2002) also (postscript version)
- Circular No. 146 (Feb 2002) also (postscript version)
- Circular No. 145 (Oct 2001) also (postscript version)
- Circular No. 144 (Jun 2001) also (postscript version)
- Circular No. 143 (Feb 2001) also (postscript version)
- Circular No. 142 (Oct 2000) also (postscript version)
- Circular No. 141 (Jun 2000) also (postscript version)
- Circular No. 140 (Feb 2000) also (postscript version)
- Circular No. 139 (Oct 1999) also (postscript version)
- Circular No. 138 (Jun 1999) also (postscript version)
- Circular No. 137 (Feb 1999) also (postscript version)
- Circular No. 136 (Oct 1998) also (postscript version)
- Circular No. 135 (Jun 1998) also (postscript version)
- Circular No. 134 (Feb 1998) also (postscript version)
- Circular No. 133 (Oct 1997) also (postscript version)
- Circular No. 132 (Jun 1997) also (postscript version)
- Circular No. 131 (Feb 1997) also (postscript version)
- Circular No. 130 (Oct 1996) also (postscript version)
- Circular No. 129 (Jun 1996) also (postscript version)
- Circular No. 128 (Feb 1996) also (postscript version)
- Circular No. 127 (Oct 1995)
- Circular No. 126 (Jun 1995)
- Circular No. 125 (Feb 1995)
- Circular No. 124 (Oct 1994)
- Circular No. 123 (Jun 1994)
- Circular No. 122 (Feb 1994)
- Circular No. 121 (Oct 1993)
- Circular Nos. 111 - 120 (1990-1993)
- Circular Nos. 101 - 110 (1987-1990)
- Circular Nos. 91 - 100 (1983-1986)
- Circular Nos. 81 - 90 (1980-1983)
- Circular Nos. 71 - 80 (1977-1980)
- Circular Nos. 61 - 70 (1973-1976)
- Circular Nos. 51 - 60 (1970-1973)
- Circular Nos. 41 - 50 (1967-1970)
- Circular Nos. 31 - 40 (1963-1966)
- Circular Nos. 21 - 30 (1960-1963)
- Circular Nos. 11 - 20 (1957-1960)
- Circular Nos. 1 - 10 (1954-1956)