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)
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imua2(1) General Commands Manual imua2(1) Name imua2 - Find USNO-A2.0 stars in FITS or IRAF image files Synopsis imua2 [options] FITS or IRAF file(s) Description Search USNO-A2.0 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 imgsc(),imuac(),imusac(),scat() Author Doug Mink, SAO (dmink@cfa.harvard.edu) Options -b [<RA> <Dec>] Output B1950 (FK4) coordinates (optional center) -u <plate> Accept only stars from this plate (default all) -h Print heading, else do not -j [<RA> <Dec>] Output J2000 (FK5) coordinates (optional center) -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> 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 <plate> Accept only stars from thsi plate (default all) -v Verbose listing of processing intermediate results -w Write tab table output file imagename.uac See Also imcat(),imgsc(),imusa2(),scat() Web Page http://tdc-www.harvard.edu/software/wcstools/imcat/imua2.html Author Doug Mink, SAO (dmink@cfa.harvard.edu) 14 April 1998 WCS imua2(1)