Which statement best describes the motions of Jupiter and Saturn? They move cont
ID: 1770926 • Letter: W
Question
Which statement best describes the motions of Jupiter and Saturn?
They move continuously eastward, but at variable rates as time progresses.
They always appear to move westward against the background stars because of the Earth’s rotation.
C. They move mostly eastward but occasionally reverse this direction to move westward for a while.
They move mostly westward but occasionally reverse their motion and moved eastward for a while.
A.They move continuously eastward, but at variable rates as time progresses.
B.They always appear to move westward against the background stars because of the Earth’s rotation.
C. They move mostly eastward but occasionally reverse this direction to move westward for a while.
D.They move mostly westward but occasionally reverse their motion and moved eastward for a while.
Explanation / Answer
B.They always appear to move westward against the background stars because of the Earth’s rotation.
For the outer planets like Jupiter, Saturn are further from the Sun than Earth and they orbit the Sun more slowly than Earth, so the planet seems to be moving backwards because Earth is moving faster than it is. At such times the Sun and the planet in opposite parts of the sky; the planet is said to be in opposition to the Sun.
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