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The Hipparcos Catalogue

Abstract : The principal observational characteristics of the Hipparcos Catalogue, and a summary of its main astrometric and photometric properties, are presented. Median astrometric standard errors (in position, parallax, and annual proper motion) are in the range 0.7-0.9 milliarcsec (mas) for stars brighter than 9 mag at the catalogue epoch (J1991.25). The catalogue is a ma-terialisation of the ICRS reference system, coinciding with its principal axes at the level of ±0.6 mas, and with proper motions consistent with an inertial system at the level of ±0.25 mas/yr. The 118 218 constituent stars provide a mean sky density of ∼ 3 stars deg −2. The catalogue is available in printed and machine-readable forms.
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  • HAL Id : hal-02053811, version 1

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M Perryman, L Lindegren, J. Kovalevsky, E Høg, U. Bastian, et al.. The Hipparcos Catalogue. Astronomy and Astrophysics - A&A, EDP Sciences, 1997, 323 (1), pp.49-52. ⟨hal-02053811⟩

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