Copenhagen University Observatory, Juliane Maries Vej 30, 2100 Copenhagen Ø, Denmark
2 Universities Space Research Association, 300 D Street S.W., Washington, DC 20024, USA
3 United States Naval Observatory, 3450 Massachusetts Avenue N.W., Washington, DC 20392-5420, USA
Corresponding author: C. Fabricius, firstname.lastname@example.org
Accepted: 18 December 2001
We report the discovery of visual double stars, mostly with separations between 0.3 and 1 arcsec, from a dedicated re–reduction of the Tycho data from the star mapper of the ESA Hipparcos satellite. The new doubles are combined with WDS systems identified in the Catalogue, and 1220 new doubles, to form the Tycho Double Star Catalogue, TDSC, a catalogue of absolute astrometry and BT, VT photometry for components of double and multiple star systems. We also include results for single components for systems unresolved in TDSC, and a supplement gives Hipparcos and data for 4777 additional components. The TDSC thus contains a total of entries. Cross identifications are given to WDS, HD, Hipparcos and .
Key words: stars: binaries: visual / catalogs / astrometry
© ESO, 2002