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Wednesday, December 9, 2009

Upgraded Pleiades

The Pleiades is one of the brightest and closest open clusters. This cluster also known as the Seven Sisters and M45. The Pleiades contains over 3,000 stars, is about 400 light years away, and only 13 light years across. This image is a composite of 20 photos. Total exposure: 2h 30min

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