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Prospects of Space Astrometry

Published online by Cambridge University Press:  14 August 2015

P. Bacchus  and
P. Lacroute
P. Bacchus
Affiliation:
Observatoire de Strasbourg, France
P. Lacroute
Affiliation:
Observatoire de Strasbourg, France

Abstract

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The advantages of making astrometric observations from space are reviewed, and a project for measuring angular separations between stars along great circle arcs of the order of 90°, by means of a telescope mounted on a TD 1 satellite is described. Positions with accuracy of the order of ±0″.01, parallaxes to ±0″.007 and proper motions to ±0″.005 yr-1 for some 40000 stars brighter than 9m.5 would be obtainable in a two year programme.

Type
Session G: Astrometric Techniques
Information
Symposium - International Astronomical Union , Volume 61: New Problems in Astrometry , 1974 , pp. 277 - 282
Copyright
Copyright © Reidel 1974