(a) In what direction does a planet move relative to the horizon over the course of one
Chapter 3, Problem 8(choose chapter or problem)
(a) In what direction does a planet move relative to the horizon over the course of one night? (b) The answer to (a) is the same whether the planet is in direct motion or retrograde motion. What does this tell you about the speed at which planets move on the celestial sphere?
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