With a basic understanding of astronomy data and image processing software, you can create your own astronomy images from FITS files. "FITS," which stands for Flexible Image Transport System, is a digital file format used mainly by astronomers. In this section you can download FITS files for some of our favorite Chandra images and learn how to compose your own versions of these high-energy atronomy images. Please tell us what you think and send an email.
Start here with a tutorial
- Overview
- 3 Color X-ray Image using GIMP with Cassiopeia A
- Broadband X-ray Image using GIMP with the Crab Nebula
Related Blog Articles
Fits Files
Notes: Any of the 3 color data sets can also be made into a broadband image following the broadband tutorial. Right click the files to download.- 3C58 (3 color)
- 3C58 0.5-1.0 keV Fits File [51.7 MB]
- 3C58 1.0-1.5 keV Fits File [51.7 MB]
- 3C58 1.5-10 keV Fits File [51.7 MB]
Credit: NASA/CXC/SAO/P.Slane et al.
Observation Dates: 09/2000-04/2003 with 4 pointings
Obs. IDs: 728, 3832, 4383, 4382
Image Release: 3C58 (14 Dec 04) - SN 1006 (3 color)
- SN 1006 0.5-0.91 keV Fits File [33.6 MB]
- SN 1006 0.91-1.34 keV Fits File [33.6 MB]
- SN 1006 1.34-3.0 keV Fits File [33.6 MB]
Credit: NASA/CXC/Rutgers/J.Hughes et al.
Observation Dates: 8-11 Apr 2003 with 11 pointings
Obs. IDs: 3838, 4385-4394
Image Release: SN 1006 (15 Dec 05) - M87 (broadband)
- M87 broad band keV Fits File [9.6 MB]
Credit: NASA/CXC/CfA/W. Forman et al.
Observation Dates: 07/2002-11/2005 with 9 pointings
Obs. IDs: 2707, 3717, 5826-28, 6186, 7210-12
Image Release: M87 (05 Aug 08) - Centaurus A (3 Color)
- Cen A 0.5-1.0 keV Fits File [4.2 MB]
- Cen A 1.0-1.5 keV Fits File [4.2 MB]
- Cen A 1.5-2.0 keV Fits File [4.2 MB]
Credit: NASA/CXC/CfA/R.Kraft et al.
Observation Dates: 03/22/2007-05/30/2007 with 6 pointings
Obs. IDs: 7797-7800, 8489-90
Image Release: Centaurus A (09 Jan 08) - Tarantula Nebula - 30 Doradus (3 Color)
- 30 Dor 0.5-0.7 keV Fits File [4.2 MB]
- 30 Dor 0.7-1.1 keV Fits File [4.2 MB]
- 30 Dor 1.1-2.0 keV Fits File [2.2 MB]
Credit: NASA/CXC/Penn State/L.Townsley, et al.
Observation Dates: 09/21/1999-01/30/2006 with 5 pointings
Obs. IDs: 22, 5906, 7263, 7264, 625207
Image Release: Tarantula Nebula (30 Doradus) (11 Dec 08) - PSR B1509-58 (3 Color)
- PSR B1509-58 0.5-1.7 keV Fits File [3 MB]
- PSR B1509-58 1.7-3.0 keV Fits File [3 MB]
- PSR B1509-58 3.0-8.0 keV Fits File [3 MB]
Credit: NASA/CXC/SAO/P.Slane, et al.
Observation Dates: 12/28/2004-10/18/2005 with 4 pointings
Obs. IDs: 5534, 5535, 6116, 6117
Image Release: PSR B1509-58 (3 Apr 09) - Carina Nebula (3 Color)
- Carina 0.5-0.7 keV Fits File [8.5 MB]
- Carina 0.7-0.86 keV Fits File [8.5 MB]
- Carina 0.86-0.96 keV Fits File [8.5 MB]
Credit: NASA/CXC/PSU/L.Townsley et al.
Observation Dates: 09/21/2004-10/15/2008 with 38 pointings
Obs. IDs: 4495, 6402, 6578, 9481-9499, 9508, 9816-9817, 9830-9831, 9849, 9856-9857, 9859-9861, 9889-9891, 9894, 10784
Image Release: Carina Nebula (24 May 11) - M83 (3 Color)
- M83 0.35-1.0 keV Fits File [37.8 MB]
- M83 1.0-2.0 keV Fits File [37.8 MB]
- M83 2.0-8.0 keV Fits File [37.8 MB]
Credit: NASA/CXC/STScI/K.Long et al.
Observation Dates: 04/29/2000-12/28/2011 with 12 pointings
Obs. IDs: 793, 2064, 12420, 12992-12996, 13202, 13241, 13248, 14332, 14342
Image Release: SN 1957D in M83 (30 Jul 12) - N132D (3 Color or Broadband)
- N132D 0.5-1.5 keV Fits File [2.1 MB]
- N132D 1.5-3.0 keV Fits File [2.1 MB]
- N132D 4.0-6.0 keV Fits File [2.1 MB]
- Raw merged data file (gz) [153 MB]
Credit: NASA/CXC/NCSU/K.J.Borkowski et al.
Observation Dates: 01/09/2006-01/15/2006 with 3 pointings
Obs. IDs: 5532, 7259, 7266
Image Release: N132D (12 Mar 08) - M82 (up to 7 colors!)
- M82 0.35-0.5 keV Fits File [38 MB]
- M82 0.5-0.7 keV Fits File [38 MB]
- M82 0.7-1.1 keV Fits File [38 MB]
- M82 1.1-1.6 keV Fits File [38 MB]
- M82 1.6-2.2 keV Fits File [38 MB]
- M82 2.2-2.8 keV Fits File [38 MB]
- M82 2.8-6.0 keV Fits File [38 MB]
Credit:NASA/CXC/Wesleyan/R.Kilgard et al.
Observation Dates: 7 pointings from Sep 20, 1999 to Jul 28, 2010
Obs. IDs: 361, 10542-10545, 10925, 11800
Image Release: M82: Chandra Images Torrent of Star Formation (13 Jan 2011) - Sagittarius A* (3 color)
- SGRA 0.2-3.3 keV Fits File [13 MB]
- SGRA 3.3-4.7 keV Fits File [13 MB]
- SGRA 4.7-8.0 keV Fits File [13 MB]
Credit: NASA/CXC/MIT/F.K. Baganoff et al.
Observation Dates: 43 pointings from September 21, 1999 to May 18, 2009
Obs. IDs: 242, 1561, 2943, 2951-2954, 3392, 3393, 3549, 3663, 3665, 4683, 4684, 5360, 5950, 5951-5954, 6113, 6363, 6639, 6640-6646, 7554-7559, 9169-9174, 10556
Image Release: Sagittarius A*: Peering Into The Heart of Darkness (5 Jan 2010) - Cas A (3 color)
- Cas A 0.5-1.5 keV Fits File [4.0 MB]
- Cas A 1.5-3.0 keV Fits File [4.0 MB]
- Cas A 4.0-6.0 keV Fits File [4.0 MB]
- Raw data file (zip) [464 MB]
Credit: NASA/CXC/SAO/D.Patnaude et al
Observation Dates: 01/30/2000-12/08/2007 with 5 pointings
Obs. IDs: 114, 1952, 5196, 9117, 9773
Image Release: Cas A (06 Jan 09) - Crab Nebula (Broadband)
- Crab 0.3-10 keV Fits File [352 KB]
- Raw data file (zip) [535 MB]
Credit: NASA/CXC/SAO/F. Seward
Observation Dates: 03/14/2001 and 01/27/2004
Obs. IDs: 1997, 4607
Image Release: Crab Nebula (23 Nov 09) - G292.0+1.8 (3 or 4 color)
- G292 0.58-0.71 plus 0.88-0.95 keV Fits File [3.8 MB]
- G292 0.98-1.1 keV Fits File [3.8 MB]
- G292 1.28-1.43 keV Fits File [3.8 MB]
- G292 1.81-2.05 plus 2.4-2.62 keV Fits File [3.8 MB]
- Raw data file (zip) [572 MB]
Note: This image could be done as a 4-color (red, orange, green, blue) image, but the 3-color tutorial still applies.
Credit: NASA/CXC/Penn State/S. Park et al
Observation Dates: 6 pointings from Sep 13 - Oct 20, 2006
Obs. IDs: 6677-6680, 8221, 8447
Image Release: G292 (23 Oct 07) - E0102 (3 color)
- E0102 0.2-0.75 keV Fits File [1.0 MB]
- E0102 0.8-1.1 keV Fits File [1.0 MB]
- E0102 1.1-2 keV Fits File [1.0 MB]
- Raw data file (zip) [95 MB]
Credit: NASA/CXC/MIT/D. Dewey et al & NASA/CXC/SAO/J. DePasquale
Observation Dates: 25 pointings between 12/10/2000 and 02/09/2008
Obs. IDs: 1308, 1311, 1530-1531, 2843-2844, 2850-2851, 3519-3520, 3544-3545, 5123-5124, 5130-5131, 6042-6043, 6074-6075, 6758-6759, 6765, 8365, 9694
Image Release: E0102 (23 Jul 09) - Kepler's Supernova Remnant (3 color)
- Kepler 0.3-0.72 keV Fits File [812 KB]
- Kepler 0.72-0.9 keV Fits File [812 KB]
- Kepler 1.7-2.1 keV Fits File [812 KB]
- Raw data file (zip) [1.1 GB]
Credit: NASA/CXC/NCSU/S. Reynolds et al.
Observation Dates: 6 pointings between April-August 2006
Obs. IDs: 6714-6718, 7366
Image Release: Kepler's Supernova Remnant (09 Jan 07) - Tycho's Supernova Remnant (3 color)
- Tycho 0.95-1.26 keV Fits File [4.0 MB]
- Tycho 1.63-2.26 keV Fits File [4.0 MB]
- Tycho 4.1-6.1 keV Fits File [4.0 MB]
- Raw data file (zip) [338 MB]
Credit: NASA/CXC/Rutgers/J.Warren & J.Hughes et al.
Observation Dates: April 29, 2003
Obs. IDs: 3837
Image Release: Tycho's Supernova Remnant (18 Feb 09)


















