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Hipparcos – Tycho: Photometry & Astrometry for more than 500 000 Stars

M. Grewing, Erik Høg

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Abstract

Abstract The Hipparcos star mapper will be used to determine magnitudes in two colours and the positions for about 500 000 stars. The typical accuracy for the mean values is about 0.03 mag and 0.03 arcsec respectively for a star of B = 11.0 mag and B-V = 0.7 mag. The photometric system and part of the data analysis are outlined.

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Abstract The Hipparcos star mapper will be used to determine magnitudes in two colours and the positions for about 500 000 stars. The typical accuracy for the mean values is about 0.03 mag and 0.03 arcsec respectively for a star of B = 11.0 mag and B-V = 0.7 mag. The photometric system and part of the data analysis are outlined.

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Available abstract

Abstract The Hipparcos star mapper will be used to determine magnitudes in two colours and the positions for about 500 000 stars. The typical accuracy for the mean values is about 0.03 mag and 0.03 arcsec respectively for a star of B = 11.0 mag and B-V = 0.7 mag. The photometric system and part of the data analysis are outlined.

Key concepts: Astrometry, Photometry (optics), Stars, Physics, Astrophysics, Astronomy

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