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Smithsonian Astrophysical Observatory Image DS9 (SAOImage DS9) is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. It provides for easy communication with external analysis tasks and is highly configurable and extensible.

DS9 supports advanced features such as multiple frame buffers, mosaic images, tiling, blinking, geometric markers, colormap manipulation, scaling, arbitrary zoom, rotation, pan, and a variety of coordinate systems. DS9 also supports FTP and HTTP access.

The GUI more...

What's New

Version 7.2:
  • FITS: DS9 now fully supports complex FITS images such as data cubes, multiple extension data cubes, mosaics, RGB images, and 3D images. In addition, DS9 can be use to create complex FITS images from multiple FITS files and other image formats. Furthermore, complex FITS images can be easily disassembled into individual images and saved in FITS or other image more...


  • OS X 10.8 or later
  • X11

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Current Version (7.x)


Downloads 7,572
Version Downloads 703
License Free
Date 15 Apr 2013
Platform OS X / Intel 32
Price Free
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