Guide Star Catalog 1.1 Cone Search

The GSC-I catalog is an all-sky catalog of positions and magnitudes for approximately 19 million stars and other objects in the sixth to fifteenth magnitude range....GSC-I星表是一份全天星表，收录了约1900万颗恒星及其他天体的位置与星等信息，涵盖的星等范围为6等到15等。