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The Hipparcos Image

Published online by Cambridge University Press:  12 April 2016

J-Y. Le Gall  and
M. Saisse
J-Y. Le Gall
Affiliation:
Laboratoire d'Astronomie Spatiale, Traverse du Siphon, Les Trois Lues, 13012, Marseille, France
M. Saisse
Affiliation:
Laboratoire d'Astronomie Spatiale, Traverse du Siphon, Les Trois Lues, 13012, Marseille, France

Abstract

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One presents hereafter the HIPPARCOS satellite payload which is mainly constituted by a Schmidt telescope; a possible way to approximate the Schmidt mirror elliptic deformation profile is explained. Then, the signal expected from the optical chain is briefly described and one displays a residual chromatic effect which may introduce errors in the measure. To conclude, numerical values of this effect are given and one shows the necessity to take it into account in the data reduction process.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 78: Astronomy with Schmidt-type telescopes , 1984 , pp. 197 - 202
Copyright
Copyright © Reidel 1984

References

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