Guide Star Photometric ConeSearch

The Guide Star Catalog (GSC) is a star catalog compiled to support the Hubble Space Telescope with targeting off-axis stars. GSC-II contains 945,592,683 stars out to magnitude 21. Photometric calibrations for GSC2 are available through this interface. All available catalogs are listed at

Additional Info

Field Value
B2FINDVersion 2.4.0
Discipline Not stated
PublicationYear 2018
Publisher Space Telescope Science Institute Archive