An object has been located orbiting the Sun at a distance from the Sun of 65 AU. What is the approximate orbital period of this object
A)65 years
B)275,000 years
C)4225 years
D)8.1 years
E)524 years

Question

Quizplus · Accepted Answer

According to Kepler's Third Law, the orbital period (P) in years is approximately equal to the semi-major axis (a) in astronomical units (AU) raised to the power of 1.5. For an object at 65 AU, P ≈ 65^(1.5) ≈ 524 years.

An Object Has Been Located Orbiting the Sun at a Distance