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Some Effects of Different Sources of Variation of Latitude Data on Meridian Circle Catalogues

Published online by Cambridge University Press:  04 August 2017

T. J. Rafferty
T. J. Rafferty*
Affiliation:
U.S. Naval Observatory

Abstract

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Fundamental meridian circle observations require the variation of latitude to be applied before the observations are combined to form a catalogue. In the past 80 years, different observatories have used various determinations of polar motion to reduce their observations. This study shows that the use of different determinations of the latitude variation significantly affects the individual observations and can introduce large zonal errors of the level of 0.05 seconds of arc into the catalogue's declination system.

Type
I. Reduction Technique
Information
Symposium - International Astronomical Union , Volume 109: Astrometric Techniques , 1986 , pp. 95 - 102
Copyright
Copyright © Reidel 1986