Improved Positions and Some Optical Identifications for 451 4C Radio Sources Between Declinations 4° and 20°
Open Access
- 1 January 1969
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Physics
- Vol. 22 (6) , 775-812
- https://doi.org/10.1071/ph690775
Abstract
Accurate positions have been measured at Parkes for 451 40 radio sources between declinations 4� and 20�. For most of the sources the r.m.s. uncertainty is � ION arc in each coordinate. Optical identifications are suggested for 94 sources, of which 22 are galaxies and 72 are possible quasi.stellar objects.Keywords
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