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An Attempt to Compare the Radio Astronomical System of Coordinates of Quasars With FK4

Published online by Cambridge University Press:  12 April 2016

I. I. Kumkova
I. I. Kumkova*
Affiliation:
Pulkovo Observatory USSR

Abstract

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A method of comparison of the FK4 system to a system based on extragalactic sources is tested on actual data for 140 sources observed by radio-interferometric and whose optical counterparts have positions referred to FK4. The difference of coordinates is analyzed in spherical harmonics series. The computation show that the method gives satisfactory results. However, the precision of the data prevents from any interpretation in terms of systematic errors of the FK4.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 56: Reference Coordinate Systems for Earth Dynamics , August 1980 , pp. 369 - 373
Copyright
Copyright © Reidel 1981

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