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How did Ptolemy explain the retrograde motion of Mars?

barry

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11 years ago

How did Ptolemy explain the retrograde motion of Mars?

How did Ptolemy explain the retrograde motion of Mars?

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nite_n_day

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11 years ago

Mars will retrograde on the inner portion of its epicycle, when it is closest to us and its motion on the epicycle is more obvious than its motion along its deferent.

Would you know my name, if I saw you in heaven?

Eric Clapton

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barry Author

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