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Improving the Reference Frame by Radio–and Optical Astrometry of Radio Stars

Published online by Cambridge University Press:  12 April 2016

Chr. de Vegt ,
N. Zacharias ,
K.J. Johnston  and
R. Hindsley
Chr. de Vegt
Affiliation:
Hamburg Observatory, Germany
N. Zacharias
Affiliation:
Hamburg Observatory, Germany
K.J. Johnston
Affiliation:
Naval Research Laboratory, Washington D.C.USA
R. Hindsley
Affiliation:
U.S.Naval Observatory, Washington D.C.USA

Abstract

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A longterm program of precise radio – and optical astrometry of selected radio stars has been conducted in the last decade by our observatories using the VLA and astrographs on both hemispheres. Positions of 54 stars north of −26 deg. declination including 6 MASER stars have been obtained. The program status and some results from the southern hemisphere are reported.

Type
Part 2. Poster Papers
Information
International Astronomical Union Colloquium , Volume 127: Reference Systems , 1991 , pp. 246 - 249
Copyright
Copyright © United States Naval Observatory 1991

References

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