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Hipparcos – Preparation of the Mission: Earth-Based Astrometry

Published online by Cambridge University Press:  30 March 2016

Y. Requième
Y. Requième*
Affiliation:
Observatoire de Bordeaux, B.P. 21, 33270 Floirac, France

Abstract

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The proper and efficient operation of the Hipparcos satellite requires positions within 1.5 arcsec at the 1989 epoch for the 100-120 000 programme stars. The first steps of the preparation have been the identification of the proposed stars in the well-known astrometric catalogues and the output of successive lists of ‘non-astrometric’ stars not belonging to these catalogues. Ground-based observations needed to supplement the presently available data, which are now under way, are also described.

Type
Joint Commission Meetings
Information
Highlights of Astronomy , Volume 7: Highlights of Astronomy. As presented at the XIXth General Assembly of the IAU, 1985 , 1986 , pp. 695 - 697
Copyright
Copyright © Reidel 1986