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Author Question: In Ptolemy's geocentric model, retrograde motion occurs when the planet is closest to us, on the ... (Read 93 times)

khang

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In Ptolemy's geocentric model, retrograde motion occurs when the planet is closest to us, on the inside portion of the
 
  A) ellipse. B) epicycle. C) equant. D) ecliptic. E) deferent.

Question 2

All four ring systems lie around their planet's ________.
 
  Fill in the blank(s) with correct word



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Heffejeff

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Answer to Question 1

B

Answer to Question 2

equators





 

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