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NNF1024 NNF1024
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A month ago

What is the term for the apparent westward motion of a planet in the sky compared to the background stars (as viewed from the Earth) when observed on successive nights?



epicycle



retrograde motion



prograde motion



heliocentric motion

Textbook 
ASTRO

ASTRO


Edition: 3rd
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jgunn88jgunn88
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A month ago
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