Accurate Right Ascensions of Selected Southern Radio Sources

Abstract

Right ascensions of selected radio sources were measured using the east-west arm of the Molonglo radio telescope. A calibration curve was obtained by surveying the aerial structure and site, and by observing radio sources with accurately known positions. Right ascensions are given for 58 sources stronger than 5 f.u. at 408 MHz and in the declination range + 19° to - 90°. The standard errors are typically 2".