Journal
ASTRONOMY & ASTROPHYSICS
Volume 384, Issue 1, Pages 180-189Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20011822
Keywords
stars : binaries : visual catalogs; astrometry
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We report the discovery of 13 251 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 18 160 WDS systems identified in the Tycho-2 Catalogue, and 1220 new Tycho-2 doubles, to form the Tycho Double Star Catalogue, TDSC, a catalogue of absolute astrometry and B-T, V-T photometry for 66 219 components of 32 631 double and multiple star systems. We also include results for 32 263 single components for systems unresolved in TDSC, and a supplement gives Hipparcos and Tycho-1 data for 4777 additional components. The TDSC thus contains a total of 103 259 entries. Cross identifications are given to WDS, HD, Hipparcos and Tycho-2.
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