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The Physical Distortion of Schmidt Plates

Published online by Cambridge University Press:  12 April 2016

Paul Herget
Paul Herget*
Affiliation:
Cincinnati Observatory

Extract

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One characteristic of Schmidt telescopes is that the focal surface is spherical. This causes a flat photographic plate to be buckled and under strain while it is in the plate holder. In the early days of the space program, it was proposed to use Schmidt telescopes for the calibration of tracking stations because they were photographically fast. The writer opposed this proposal because they are not of high astrometric quality, for the reason indicated above.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 7: Proper Motions , August 1965 , pp. 93
Copyright
Copyright © University of Minnesota 1970