Stellar content of the input catalog

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astrometry, Astronomical Catalogs, Astrophysics, Data Bases, Selection, Sky Surveys (Astronomy), Data Processing, European Space Programs, Hipparcos Satellite, Stellar Magnitude, Stellar Spectra

Scientific paper

The astrometric and astrophysical contents of the Hipparcos mission input catalog are summarized. The extent to which the different inclusion proposals are satisfied, is also considered. Tables are given which show the percentage of stars from major astrometric catalogs which have passed the simulations, and the statistics according to spectral type, the magnitude, and heliocentric distance, are given. The completeness of the magnitude limited survey is analyzed. The final retained survey is presented. It contains 53,000 stars, 95 percent of them are closer than 500 parsecs.

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