An imaginary planet is orbiting the Sun in a circle at precisely the same average orbital distance as Earth (i.e., 1 au). What is its sidereal period?

Name: An imaginary planet is orbiting the Sun in a circle at precisely the same average orbital distance as Earth (i.e., 1 au). What is its sidereal period?
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Question

Quizplus · Accepted Answer

Since the planet is orbiting at the same distance as Earth, it must also have the same sidereal period as Earth, which is 1 year.

An Imaginary Planet Is Orbiting the Sun in a Circle