Retrograde motion is discernible by watching a planet over the course of
A) a few minutes.
B) many hours.
C) many nights.
D) many years.

Name: Retrograde motion is discernible by watching a planet over the course of A) a few minutes. B) many hours. C) many nights. D) many years.
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Question

Quizplus · Accepted Answer

Retrograde motion is observed over many nights as a planet appears to move backward in the sky relative to the stars, due to the relative positions and motions of Earth and the planet in their orbits.

Retrograde Motion Is Discernible by Watching a Planet Over the Course