Answer:
The right answer is option C
Explanation:
An hour of right ascension is 15 degrees
A minute of right ascension is 15 degrees / 60 minutes = 0.25
For a full moon where the sun and moon are 180 degrees apart. We calculate by finding the number of hours in 180 degrees. Recall there 15 degrees in an hour.
180 degrees / 15 degrees = 12 hours