The TYCHO Catalogue: Stellar Content

Details The TYCHO Catalogue: Stellar Content The TYCHO Catalogue: Stellar Content

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402...31e&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 31-34

Computer Science

1

Scientific paper

The stellar content of the Tycho Catalogue (ESA 1997) is presented. It is shown that the Tycho Catalogue contains about 99.9 per cent of the stars brighter than V=10.0 mag, and a large fraction of the stars in the range 10.0 to 11.5 mag. Comparisons of content are made with major reference catalogues: the Hipparcos main catalogue, the Catalogue of Positions and Proper Motions (PPM), the Guide Star Catalog (GSC) for the Hubble Space Telescope, etc. The status of missing stars is analysed, additional Tycho entries with respect to the Input Catalogue are discussed, and results of cross-matching with existing catalogues are presented.

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