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Comet ISON Photo Contest for Amateur Astronomers Launched by National Science Foundation CREDIT: by Megan Gannon, News Editor   |   October 27, 2013 10:29am EST Adam Block took this image of comet ISON using a SBIG STX16803 CCD Camera with a 32-inch Schulman Telescope Schulman Telescope atop Mount Lemmon from the University of Arizona’s SkyCenter on

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