Description: a tcl/tk image viewer with support for astronomical image formats.
?DS9 is a descendant of the ?SAOImage program. It can be used for viewing images in scientific astronomy data formats, such as FITS, but can also be used with TIFF, JPEG etc. It can be interfaced with the IRAF package and used to make scientific measurements from images (astronomical position, shape, brightness). The saods9 package is in the main Debian archive, as is the saoimage package.