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Towards The Definition Of A Unified Celestial Optical/Radio Reference Frame

Published online by Cambridge University Press:  03 August 2017

J. Hughes ,
K. J. Johnston  and
Ch. de Vegt
J. Hughes
Affiliation:
United States Naval Observatory
K. J. Johnston
Affiliation:
E. O. Hulburt Center for Space Research, Naval Research Laboratory, Washington, DC 20375-5000
Ch. de Vegt
Affiliation:
Hamburger Sternwarte

Abstract

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An almost inertial celestial reference frame based upon extragalactic sources is in the process of being established. This reference frame is to be global with a minimum density of one source per 100 square degrees. The source positions will be based upon radio observations and will allow optical reference frames to be related to this frame at the 0.03 arc second level.

Type
Part II: Current Research
Information
Symposium - International Astronomical Union , Volume 133: Mapping the Sky: Past Heritage and Future Directions , 1988 , pp. 433 - 435
Copyright
Copyright © Kluwer 1988 

References

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