Compiled Catalogue of Reference Stars around 43 Extragalactic Radio Sources
Abstract
Some differential catalogues of reference stars around extragalactic radio sources obtained from photographic and CCD observations by different observatories are considered. A compiled catalogue of star positions in fields 30'x30' for the reduction of optical observations ERS on telescopes endowed with CCD cameras is intended. Photographic observations fields around of 74 ERS were made in Pulkovo observatory, around 115 ERS - in observatory of Kiev university, around 188 ERS - in the Astronomical Institute of the Romanian Academy in Bucharest, 208 fields around ERS in Nikolaev observatory on telescope with CCD camera were obtained. As first results the reduction techniques for results of observations to uniform compiled catalogue are shown. Astrometric positions for 5500 stars brighter than 16 magnitude for 43 fields around ERS are presented. A comparison of our results with those of other authors is made.
- Publication:
-
Romanian Astronomical Journal
- Pub Date:
- 2005
- Bibcode:
- 2005RoAJ...15S.131R