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The two components of ISON

The two components of ISON

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NASA/JPL-Caltech/JHUAPL/UCF

The two components of ISON
On June 13, 2013 the Spitzer Space Telescope imaged comet ISON with its two available filters around 3.6 and 4.5 micrometers wavelength. The image on the left is the 3.6-micron image, dominated by dust reflecting sunlight, which is also drawn out as a little tail. On the right this dust component has been subtracted from the 4.5-micron image, leaving only a spherical shell of glowing gas.

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about June 13, 2013

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