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ASTSCRIPT-FITS-VIEW(1)		  User Commands 	  ASTSCRIPT-FITS-VIEW(1)

NAME
     astscript-fits-view - View FITS images in DS9 and tables in TOPCAT

SYNOPSIS
     astscript-fits-view [OPTION] FITS-file(s)

DESCRIPTION
     This script is part of GNU Astronomy Utilities 0.24.

     This  script will take any number of FITS inputs and will pass them to TOP-
     CAT or SAO DS9 depending on the the first input FITS file: if  it	contains
     an image HDU, the files will be passed to SAO DS9, otherwise, to TOPCAT.

     For more information, please run any of the following commands. In particu-
     lar  the  first  contains a very comprehensive explanation of this script's
     invocation: expected input(s), output(s), and a full description of all the
     options.

     Inputs/Outputs and options:
	    $ info astscript-fits-view

     Full Gnuastro manual/book:
	    $ info gnuastro

     If you couldn't find your answer in the manual, you  can  get  direct  help
     from  experienced	Gnuastro  users  and  developers.  For more information,
     please run:

	    $ info help-gnuastro

   astscript-fits-view options:
	    Input:

     -h, --hdu=STR
	    Extension name or number of input data.

     -g, --globalhdu=STR
	    Use this HDU for all inputs, ignore '--hdu'.

	    Output:

     -G, --ds9geometry=INTxINT Size of DS9 window, e.g., for HD (800x1000) and
	    for 4K (1800x3000). If not given, the script will  attempt	to  find
	    your screen resolution and find a good match, otherwise, use the de-
	    fault size.

     -e, --ds9extra=STR
	    Extra options to pass to DS9 after default ones.

     -s, --ds9scale=STR
	    Custom value to '-scale' option in DS9.

     -c, --ds9center=FLT,FLT Coordinates of center in shown DS9 window.

     -r, --ds9region=STR[,...] DS9 region(s) to load.

     -O, --ds9mode=img/wcs
	    Coord system to interpret '--ds9center' (img/wcs).

     -m, --ds9colorbarmulti
	    Separate color bars for each loaded image.

     -k, --topcat4k
	    TOPCAT UI is scaled by double (for 4K displays).

     -p, --prefix=STR
	    Directory containing DS9 or TOPCAT executables.

	    Operating mode:

     -?, --help
	    Print this help list.

     --cite
	    BibTeX citation for this program.

     -q, --quiet
	    Don't print any extra information in stdout.

     -V, --version
	    Print program version.

     Mandatory	or  optional arguments to long options are also mandatory or op-
     tional for any corresponding short options.

     GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/

REPORTING BUGS
     Report bugs to bug-gnuastro@gnu.org.

COPYRIGHT
     Copyright (C) 2020-2025 Free Software Foundation, Inc.  License GPLv3+: GNU
     General public license version 3 or later.
     This is free software: you are free to change and redistribute  it.   There
     is NO WARRANTY, to the extent permitted by law.

     Written/developed by Mohammad Akhlaghi and Sepideh Eskandarlou

SEE ALSO
     The  full	documentation for astscript-fits-view is maintained as a Texinfo
     manual.  If the info and  astscript-fits-view  programs  are  properly  in-
     stalled at your site, the command

	    info astscript-fits-view

     should give you access to the complete manual.

GNU Astronomy Utilities 0.24	  November 2025 	  ASTSCRIPT-FITS-VIEW(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=astscript-fits-view&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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