What is the difference in right ascension between the Moon and the Sun when the Moon is at quarter phase?
A) 6 hours
B) 3 hours
C) 12 hours
D) 0 hours; they are in the same region of the sky.

Question

Quizplus · Accepted Answer

At quarter phase, the Moon is 90 degrees away from the Sun in the sky, which corresponds to a difference in right ascension of 6 hours, since the Earth rotates 360 degrees in 24 hours.

What Is the Difference in Right Ascension Between the Moon