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Design for a Large Transit Circle with Reflecting Optics

Published online by Cambridge University Press:  04 August 2017

Ningsheng Hu
Ningsheng Hu*
Affiliation:
Nanjing Astronomical Instruments Factory, Academia Sinica, Nanjing, China

Abstract

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This paper describes a conceptual design for an automatic transit circle with Ritchey-Chretien Cassegrain type optics of 40 cm aperture. The instrument takes reversal observation both in the meridian and in the prime vertical. Methods of adopting active optics to achieve a stable boresight of the reflecting telescope and of automatically reversing and leveling the instrument are presented. The instrument can also be used in a theodolite mode.

Type
VI. Transit Circles and Astrolabes
Information
Symposium - International Astronomical Union , Volume 109: Astrometric Techniques , 1986 , pp. 421 - 426
Copyright
Copyright © Reidel 1986 

References

Westerhout, G. and Voliden, R. A. 1981. Bull. Amer. Astr., Sec. 13, 445.Google Scholar
Mao, Wei, et al., 1983. Acta Astronomica Sinica, 24, No. 2.Google Scholar