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The Refurbished Six-Inch Transit Circle

Published online by Cambridge University Press:  04 August 2017

B. L. Klock
B. L. Klock*
Affiliation:
U.S. Naval Observatory

Abstract

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The U.S. Naval Observatory (USNO) six-inch transit circle at Washington underwent extensive refurbishment during the interval between October 1982 and May 1983. Major items refurbished on the instrument included the micrometer, the clamp and slow motion arm, the screen system, and a circle. Support instrumentation refurbished included a new digital motor drive system, a new digital micrometer display system, and new environmental measuring systems. Finally, the telescope was completely repainted and the pavilion was extensively renovated.

Type
VI. Transit Circles and Astrolabes
Information
Symposium - International Astronomical Union , Volume 109: Astrometric Techniques , 1986 , pp. 507 - 515
Copyright
Copyright © Reidel 1986 

References

1. Adams, A.N. (1962), Sitzungberichte der Heidelberger Akademie der Wissenschaften Jahrgang, 2 Abhandlung, S. 56 Google Scholar