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首页土星壁纸 Epimetheus Falls Behind

Epimetheus Falls Behind

土星壁纸

by NASA/JPL/Space Science Institute

NASA Image Library · 公有领域（Public Domain）

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Janus and Epimetheus continue to separate, following their orbital swap in January 2006. Until 2010, Janus will remain the innermost of the pair, whose orbits around Saturn are separated by only about 50 kilometers 31 miles on average

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