A differential catalog of right ascensions for 578 stars RRS2 obtained from observations with the meridian circle at Odessa Astronomical Observatory in 1990–1993

Abstract

Abstract Meridian observations of stars according to programs which are of great interest for other branches of astronomy is a tradition of Odessa Astronomical Observatory. One of these programs is RRS2 -Radio References Stars. Their precise positions are necessary to establish a connection between the radio and optical systems of celestial coordinates (CONFOR program). In 1990–1993, over 10000 differential observations of right ascensions for RRS2 stars were obtained in the FK5 system with the meridian circle. A catalogue of right ascensions of 520 RRS2 stars was compiled with a 0.010 sec ms error of the catalogue position. This catalogue was sent to Astronomical Observatory of Kiev University for the inclusion in a summary catalogue.