These images from NASA Spitzer Space Telescope of C/2012 S1 Comet ISON were taken on June 13, when ISON was 310 million miles about 500 million kilometers from the sun.
Details
Title: Spitzer Eyes Comet ISON
Creator: NASA/JPL-Caltech/JHUAPL/UCF
Date Created: 2013-07-23
Rights: JPL
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