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A Source of Systematic Error, Δδα, in Absolute Catalogs Compiled from Meridian Circle Observations

Published online by Cambridge University Press:  12 April 2016

M. Miyamoto  and
S. Suzuki
M. Miyamoto
Affiliation:
National Astronomical Observatory Mitaka, Tokyo 181, Japan
S. Suzuki
Affiliation:
National Astronomical Observatory Mitaka, Tokyo 181, Japan

Abstract

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Automated photoelectric meridian circles are able nowadays to have the full set of graduation errors of the decimation circle determined within a few days. Thus, the modern meridian circles can be monitored, and the annual and secular changes of the graduations can be easily detected to provide the graduation corrections at any date. In order to remove systematic declination errors in the form Δδα from absolute catalogs, these continuous changes should be taken into account.

Type
Part 2. Poster Papers
Information
International Astronomical Union Colloquium , Volume 127: Reference Systems , 1991 , pp. 314 - 317
Copyright
Copyright © United States Naval Observatory 1991

References

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Miyamoto, M., Suzuki, S., Hara, H., Kuwabara, T.: 1986, Astron. Astrophys. 169, 367.Google Scholar