debian man page for sky2xy

sky2xy(1)						      General Commands Manual							 sky2xy(1)

Name
       sky2xy - Compute X Y from RA Dec using WCS in FITS and IRAF image files

Synopsis
       sky2xy [-vbjg] file.fts ra1 dec1 ... ran decn
       or
       sky2xy [-vbjg] file.fts @listfile

Description
       sky2xy  (pronounced sky-to-X-Y) is a utility for getting the image coordinates of a set of world coordinates in a FITS or IRAF image. World
       coordinate system (WCS) information in the image header describes, in a standard way, the relationship between sky  coordinates	and  image
       pixels. This information is used by the program to transform image right ascension and declination sky coordinate pairs to image coordinate
       (X,Y) pairs.  The program prints the coordinates at the same system as is given in the image header, but future versions will allow  trans-
       formations  to  B1950/FK4,  J2000/FK5,  ecliptic  or galactic coordinates. Input and output files in the Starbase format will eventually be
       allowed.

Options
       -b     B1950 (FK4) input

       -e     Ecliptic longitude and latitude input

       -g     Galactic longitude and latitude input

       -j     J2000 (FK5) input

       -g     Galactic longitude and latitude input

       -v     More descriptive output

       -z     Use AIPS classic projections instead of WCSLIB

See Also
       xy2sky()

Author
       Doug Mink, SAO (dmink@cfa.harvard.edu)

6 July 2001							     WCSTools								 sky2xy(1)