How many new moons happen a year?

Question

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Answer 1

on average 12 new and 12 full...

Answer 2

12.

Andromeda

http://space-and-times.blogspot.com

Answer 3

The synodic period of the moon is about 29.5 days, so just dividing 356.25 days in a year by 29.5 days between new moons gives an average number of about 12.4 new moons per year.  

Answer 4

ehm, about 13

cause a month isn't exactly 27.9-something days, there are usually 13 lunar cycles in a year