The Double Star Library

We Have Moved!

In an effort to do a little "housecleaning" of the websites associated with the USNO's Washington Double Star program, addresses of the Double Star Library and its associated files have changed slightly. Please change your bookmarks to the following:

Double Star Library: http://ad.usno.navy.mil/wds/dsl.html
Third Interferometric Catalog: http://ad.usno.navy.mil/wds/int3.html
Fourth Interferometric Catalog: http://ad.usno.navy.mil/wds/int4.html
Fifth Orbit Catalog: http://ad.usno.navy.mil/wds/orb5.html

Also, please let me know of any links I may have missed in making these changes! Sorry for any confusion these changes may cause.

William I. Hartkopf
Astrometry Department
U.S. Naval Observatory
3450 Massachusetts Avenue, NW
Washington, DC 20392-5420
Tel: 202/762-1478
FAX: 202/762-1516
E-mail: wih@usno.navy.mil