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barry barry
wrote...
Posts: 11630
11 years ago
Explain how Copernicus would account for the retrograde loops of superior planets.
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Replies
wrote...
11 years ago
The Earth moves faster than these outer worlds, so at opposition we overtake them and as we sweep past them, they appear to retreat westward for a few weeks.
Would you know my name, if I saw you in heaven?

Eric Clapton
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barry Authorbarry
wrote...
Top Poster
Posts: 11630
11 years ago
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