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sgsc(1) 						      General Commands Manual							   sgsc(1)

Name
       sgsc - Find HST GSC stars in a square on the sky

Synopsis
       sgsc [options] [-b or -j] ra dec

Description
       sgsc  is  a  utility  for finding all of the Hubble Space Telescope Guide Star Catalog objects in a specified region of the sky and listing
       them with their sky positions and magnitudes in order of brightness, with the brighter ones first.  Output is to standard out,  unless  the
       -w flag is set, in which case it goes to objectname.gsc or search.gsc. It is somewhat similar to RGSC, which can search from lists of coor-
       dinates but cannot sort the output.  It is a link to scat.

Options
       -a     List single closest catalog source

       -b <RA> <Dec>
	      Output B1950 (FK4) coordinates

       -d     Sort by distance from center instead of flux

       -g <class>
	      Object class (0=stars 3=galaxies -1=all)

       -h     Print heading, else do not

       -j <RA> <Dec>
	      Output J2000 (FK5) coordinates around this 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

       -o <name>
	      Object name used for output file naming

       -r <radius>
	      Radius of search circle 1in arcsec (default 10)

       -s     Sort by RA instead of flux

       -t     Tab table to standard output as well as file

       -v     Verbose listing of processing intermediate results

       -w     Write tab table output file imagename.gsc

See Also
       scat(1), rgsc(1), suac(1), susac(1), imgsc(1)

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

14 April 1998								WCS								   sgsc(1)

Check Out this Related Man Page

sua2(1) 						      General Commands Manual							   sua2(1)

Name
       sua2 - Find USNO-A2.0 Catalog stars in a square on the sky

Synopsis
       sua2 [options] ra dec system

Description
       suac finds all of the U.S. Naval Observatory A2.0 Catalog objects in a specified region of the sky and lists their sky positions and magni-
       tudes in order of brightness. Output is to standard out, unless the -w flag is set, in which case it goes to objectname.uac or  search.uac.
       It is a link to scat.

Options
       -a  list single closest catalog source -b Output B1950 (FK4) coordinates -d Sort by distance from center instead of flux -e Output ecliptic
       coordinates -f Output search center for other programs -g Output galactic coordinates -h Print heading, else do not -i Print catalog object
       name,  not  catalog  number (=ua2_region_number) -j Output J2000 (FK5) coordinates -l Print center and closest star on one line -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  -o  <name>  Object  name used to name output file -p Sort by distance from search center instead of brightness -q <years>
       Equinox of output positions in years -r <radius> Search box half-width in arcsec or dd:mm:ss If negative, this is a radius; if two numbers,
       first  is  in  right ascension, second is in declination. (default is 10, that is a 20x20 arcsec box) -s Sort by right ascension instead of
       flux -t Tab table output -u <num> Print X Y instead of number in front of non-tab entry	-v  Verbose  listing  of  processing  intermediate
       results -w Write tab table output file imagename.uac -y Epoch of output positions in years

See Also
       scat(1), susac(1), imuac(1), sgsc(1)

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

19 November 1999							WCS								   sua2(1)
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