A compiled catalogue of reference stars around 227 astrometric extragalactic radio sources

Ryl'kov, VP, Narizhnaya, NV, Dement'eva, AA, 1Pinigin, GI, 1Maigurova, NV, 1Martynov, MV
1Research Institute "Mykolaiv Astronomical Observatory", Mykolaiv, Ukraine
Kinemat. fiz. nebesnyh tel (Online) 2011, 27(6):44-51
Start Page: Positional and Theoretical Astronomy
Language: Russian
Abstract: 

A compiled catalogue of 21 440 stars with magninudes from 10 to 17 is prepared on the basis of original observations made from the end of the 20th to the beginning of the 21th century. The catalogue contains 227 fields of the celestial sphere around extragalactic radio sources in a declination zone from -17 to +89°. The field size is 40' for both right ascension and declination. The internal accuracy of positions for both coordinates is not worse than 0.1”. The comparison of stellar positions with the use of the UCAC2 and CMC13 catalogues shows that the average external accuracy is about 0.05—0.15” for the majority of chosen fields of the compiled catalogue. The positions of 10 795 stars up to +50° in declination are given at epoch J2000.0, whereas the positions of other stars are given at the epoch of an observation.

Keywords: extragalactic radio source, stellar catalogue