JOHN CHUMACK / SCIENCE PHOTO LIBRARY JOHN CHUMACK / SCIENCE PHOTO LIBRARY
Mars Opposition 2007 with 15.7 arc/sec diameter Blue polar cap and blue limb clouds visible. Captured on Closeup on 12-25-2007 with Toucam Pro 2 Webcam & 5x televue Barlow and 10' SCT scope.
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