The motions of the planets against the background stars in our sky can best be described as:

Question

Quizplus · Accepted Answer

The planets generally move in an eastward direction across the sky, but they also undergo apparent retrograde motion (westward motion) for weeks or months at a time when viewed from Earth. This is due to the relative positions and motions of the planets and Earth in their orbits around the Sun. Therefore, the best description for the motions of the planets is "regular patterns with general eastward motion interrupted by periods of westward motion."

The Motions of the Planets Against the Background Stars in Our