SIMBAD references

1996A&AS..120..201L - Astron. Astrophys., Suppl. Ser., 120, 201-205 (1996/December-1)

A compiled catalogue of optical positions of extragalactic radio sources.

LI J. and JIN W.

Abstract (from CDS):

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 0.09". Comparisons show that the orientation differences between optical and radio frames are A1=-0.013"±0.012", A2=0.077"±0.012", A3=0.005" ±0.009". Local relative deformations are not obvious within the precision of ground-based optical observations.

Abstract Copyright:

Journal keyword(s): astrometry - reference frames - catalogues - radio continuum: galaxies

VizieR on-line data: <Available at CDS (J/A+AS/120/201): table1 table2 table3>

Simbad objects: 54

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2019.10.23-08:31:08

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