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sky2xy(1) [debian man page]

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)

Check Out this Related Man Page

imusa2(1)						      General Commands Manual							 imusa2(1)

Name
       imusa2 - Find USNO-SA2.0 stars in FITS or IRAF image files

Synopsis
       imua2 [options] FITS or IRAF file(s)

Description
       Search USNO-SA2.0 Catalog within the area described by the world coordinate system in an image header.  This is a link to imcat rather than
       a separate executable.

Options
       -b [<RA> <Dec>]
	      Output in B1950, optional new image center in B1950 (FK4) RA and Dec

       -h     Print heading, else do not

       -j [<RA> <Dec>]
	      Output in J2000, optional new image center in J2000 (FK5) RA and Dec

       -m [<bright magnitude>] <faint magnitude>
	      Limiting catalog magnitude(s) (default none, bright -2 if only faint is given)

       -n <num>
	      Number of brightest stars to print

       -p <scale>
	      Initial plate scale in arcsec per pixel (default 0)

       -s     Sort by RA instead of flux

       -t     Tab table to standard output as well as file

       -u     USNO catalog single plate number to accept

       -v     Verbose listing of processing intermediate results

       -w     Write tab table output file imagename.cat -z Use AIPS classic projections instead of WCSLIB; use CD matrix or CDELT instead of poly-
	      nomial solution.

See Also
       imcat(),imgsc(),imua2(),scat()

Web Page
       http://tdc-www.harvard.edu/software/wcstools/imcat/imusa2.html

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

14 April 1998								WCS								 imusa2(1)
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