The compilation of astrometric data

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astrometry, Compilers, Data Processing, Error Detection Codes, Hipparcos Satellite, Sky Surveys (Astronomy), Stars, Astronomical Catalogs, Data Bases, European Space Programs, Ground Support Systems, Northern Hemisphere, Southern Hemisphere

Scientific paper

The creation of the best available astrometric data compilation for the Hipparcos mission is presented. It combines the ground based measurements with the already available proper motions and summarizes the accuracy of the included catalogs. The final position accuracy of the Hipparcos input catalog is shown to be better than 0.5 arcsec in the Northern Hemisphere and 0.7 arcsec in the Southern Hemisphere. Details and results of the systematic data corrections are given.

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