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发帖数: 1994 | 1 Three Years of Saturn
Credit & Copyright: Peter Wienerroither
Explanation: Using an image recorded just last month as a base, this
composite illustration tracks the motion of bright Saturn as it wanders
through planet Earth's night sky. Starting at the upper right, Saturn's
position is shown about every two weeks beginning in August 2005 and
projected through September 2008. Over the three year period, Saturn
actually appears to reverse its general eastward (leftward) drift, tracing
out three fl |
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