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Old 05 February 2007, 01:09 AM
Troodon Troodon is offline
 
Join Date: 06 January 2004
Location: Waltham, MA
Posts: 8,077
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I think I see what the letter is trying to say - the orbits of the outer planets are so large relative to the orbit of the earth that they appear to circle the earth. Of course, what is happening is that they are circling the sun but the earth is just always very close to the sun compared to them.
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