Investigation of the Guide Star Catalog
Smirnov, O. M.; Malkov, O. Y.
United States
Abstract
The Guide Star Catalog (GSC) was initially created at STScI to support the operational requirements of the Hubble Space Telescope (HST), specifically, to provide an all-sky set of reference coordinates for pointing and tracking. A new version of the catalog, GSC 1.1, includes bright stars from the HIPPARCOS INCA database. The GSC is widely used by the astronomical community for many different applications. Some results of the investigation of the GSC at the Moscow Center for Astronomical Data are presented here.