Issue |
Astron. Astrophys. Suppl. Ser.
Volume 120, Number 2, December I 1996
|
|
---|---|---|
Page(s) | 201 - 205 | |
DOI | https://doi.org/10.1051/aas:1996288 | |
Published online | 15 December 1996 |
A compiled catalogue of optical positions of extragalactic radio sources
Shanghai Observatory, Shanghai 200030, China
Corresponding author: Send offprint request to: Li Jinling, e-mail: xytan@fudan.ihep.ac.cn
Received:
2
January
1996
Accepted:
15
April
1996
Based on 28 individual catalogues, in which the positions of
optical counterparts of extragalactic radio sources are listed,
we compiled a combined catalogue by means of a weighted
least squares adjustment. The catalogue is in the system of
FK5/J2000.0.
It consists of about five hundred sources, among which there are 56
primary sources with position uncertainties as .
Comparisons show
that the orientation differences between optical and radio frames
are
Local relative deformations are not
obvious within the precision of ground-based optical observations.
Key words: astrometry / reference frames / catalogues / radio continuum: galaxies
© European Southern Observatory (ESO), 1996