NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-26 T17:10:36 PDT
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For refcode 1989A&A...210..455W:
Retrieve 42 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1989A&A...210..455W A compilation catalogue of positions of extragalactic radio sources H.G. Walter Astronomisches Rechen-Institut, Monchhofstr. 12-14, D-6900 Heidelberg, Federal Republic of Germany Received July 14, accepted August 26, 1988 Summary. This paper describes the construction of a compilation catalogue, from observation catalogues of extragalactic radio sources having positions with internal accuracies of a few milliarcseconds. The catalogue lists 42 objects with at least three independent observations each. On the average its estimated accuracy is 0.7 mas in right ascension and 1.0 mas in declination compatible with the calculated mean differences between observation catalogues and the compilation catalogue. At the level of 0.5 mas the current version is insensitive to addition, deletion or exchange of one of the high precision catalogues. Key words: astrometry - catalogues of position - extragalactic radio sources
Retrieve 42 NED objects in this reference.
Please click here for ADS abstract

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