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The main features of the 1.56-m telescope and its status quo

Published online by Cambridge University Press:  04 August 2017

Wan Lai
Affiliation:
Shanghai Observatory, Academia Sinica, 80 Nandan Road, Shanghai China
Zhu Neng-hong
Affiliation:
Shanghai Observatory, Academia Sinica, 80 Nandan Road, Shanghai China
Wang Lan-juan
Affiliation:
Shanghai Observatory, Academia Sinica, 80 Nandan Road, Shanghai China
Yang Zheng-hua
Affiliation:
Shanghai Observatory, Academia Sinica, 80 Nandan Road, Shanghai China
Zheng Yi-jin
Affiliation:
Shanghai Observatory, Academia Sinica, 80 Nandan Road, Shanghai China

Abstract

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This telescope was designed for determining the trigonometric parallaxes of faint stars. The otpical configuration is a Ritchey-Chrétien system and has only a f/10 Cassegrain focus for photographic work.

The mounting is a combination of fork and yoke frame which can reduce the flexure due to gravity. A high speed digital servo-system was adopted for controlling and driving the telescope. At present some photographs of Comet Halley have been obtained.

Type
I. Telescopes and Instrumentation
Copyright
Copyright © Reidel 1986