Find Tycho Stars in Image Region

imtycho is a link to the WCSTools imcat utility which finds all of the Hipparcos Tycho Catalog objects in a FITS or IRAF image and lists their sky and image positions. World coordinate system (WCS) information must be present in the image header to describe, in a standard way, the relationship between sky coordinates and image pixels. This information is used by the program to find the region in the sky to search and to transform right ascension and declination sky coordinate pairs to image coordinate (X,Y) pairs. Output is sent to a file called filename.tycho and to standard output if the -v flag is set. The minimum command line is
imtycho FITS or IRAF filename
The same effect can be obtained by running
imcat -c tycho FITS or IRAF filename

Command Line Arguments


List the Tycho Catalog stars in an image

Last updated 2 July 2001 by Doug Mink

Telescope Data Center [WCSTools programs] [imcat]