First HiRISE Images of Comet ISON
September 29, 2013
| Credit | NASA/JPL/University of Arizona |
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These images show a 256 x 256 pixel patch of sky at the range to the comet of 8 million miles and when the solar phase angle is 47 degrees. Three more observations of ISON are planned for 1 and 2 October as the comet moves through closest approach to Mars at 7 million miles, but with less illumination as seen from Mars.
