imcat is a utility for finding all of the objects from a specified
catalog objects in a FITS or IRAF image
and listing their sky and image positions. Supported catalogs include the
Hubble Space Telescope Guide Star Catalog, U.S. Naval Observatory Catalogs,
or user-developed catalogs.
Find Catalog Stars in Image Region
World coordinate system (WCS) information
must be present in the image header for the program to find the region
in the sky to search and to transform right ascension and declination
sky coordinate pairs from the catalog into image coordinate (X,Y) pairs.
Output is sent to a file called
filename.cat and to standard output if the -v flag is set.
- Specific catalogs which can be searched include:
List HST Guide Star Catalog Stars in an Image
File USNO A-1.0 Catalog Stars in an Image
List USNO J Catalog Stars in an Image
Plot HST Guide Star Catalog Stars over an Image