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Proceedings Paper

A Quadrant Photosil Autoguider For The 17/24 Inch Schmidt Telescope At The Institute Of Astronomy, Cambridge
Author(s): J. V. Jelley; A. N. Argue
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Paper Abstract

The autoguiding of ground-based telescopes has developed relatively slowly over the last thirty years or so, in spite of the existence of exceedingly sensitive photoelectric detectors. Of those based on the mechanical chopping or dissection of the light in a stellar image, there are essentially three types. The first (Ref. 1) entails division of the light at the roof of a right-angled prism or the apex of a pyramid, the second, a rotating knife-edge (Ref. 2), and the third, an elegant development of the latter (Ref. 3), uses a ball bearing rotating inside an annulus.

Paper Details

Date Published: 1 September 1974
PDF: 6 pages
Proc. SPIE 0044, Instrumentation in Astronomy II, (1 September 1974); doi: 10.1117/12.953930
Show Author Affiliations
J. V. Jelley, A.E.R.E. (England)
A. N. Argue, The Institute of Astronomy (England)

Published in SPIE Proceedings Vol. 0044:
Instrumentation in Astronomy II
Lewis Larmore; Donald H. Menzel; David Crawford, Editor(s)

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