<p>Image of the Crab Nebula in Infrared at 3.6 (blue), 5.8 (green) and 8.0 (red) µm.
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The image has been made by myself (Médéric Boquien) from the public image archive of the Spitzer Space Telescope (courtesy NASA/JPL-Caltech). For each band, the *maic.fits images were combined using IRAF imcombine with the parameters combine=median; reject=none; offsets=wcs. The final color image was made using DS9 with the following command line: ds9 -rgb -red ch4/pbcd/ch4.fits -scale limits 10 60 -green ch3/pbcd/ch3.fits -scale limits 3 50 -blue ch1/pbcd/ch1.fits -scale limits 1 15 -view colorbar no.
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Med" title="User:Med">Med</a> assumed (based on copyright claims).
CC BY 2.5
No machine-readable source provided. Own work assumed (based on copyright claims).