The approximate period between two consecutive new moons is days.

Options

A. 15.5
B. 28.5
C. 29.5
D. 15

Answer

C

Explanation

The approximate period between two new moons is 29.5 days. The time interval between a full moon and the next repetition of the same phase, a synodic month, averages about 29.53 days. Therefore, in those lunar calendars in which each month begins on the day of the new moon, the full moon falls on either the 14th or 15th day of the lunar month.