If the orbital period of Uranus is 84 years, its axis tilt is 98°, and its rotational period is about 17 hours, how often will the Sun be at the zenith at the north pole?
A)never, because of the extreme tilt of the spin axis to the ecliptic plane
B)once every 42 years
C)once every 17 hours
D)once every 84 years

Question

Quizplus · Accepted Answer

The extreme tilt of Uranus' axis means that the Sun never rises or sets at the poles. Therefore, the Sun can never be at the zenith at the north pole.

If the Orbital Period of Uranus Is 84 Years, Its