Question

The apparent westward movement of a planet against the background of stars is called ____. (1 point)

retrograde motion
revolution
rotation
universal gravitation

Answer 1

retrograde motion

Step-by-step explanation:

Answer 2

retrograde motion

Step-by-step explanation:

All the planets have direct motion or progade motion i.e. they move in eastward direction around the Sun. The exceptions are Venus and Uranus which apparently move westwards. This is type of motion is known as retrograde motion. Venus and Uranus move opposite to the other planets motion against the background of stars.