does a new moon happen every month?

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does a new moon happen every month?

Postby shaunyhoya on August 31st, 2006, 5:35 pm 

because the word month means moon doesnt it?
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Postby Silkworm on August 31st, 2006, 6:16 pm 

It doesn't really work into a month like clockwork, but the moon does have a cycle and a new moon is close to every month.
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Postby Lincoln on August 31st, 2006, 11:28 pm 

The moon comes back to the same place every 29.5 days. So in every month except February, there must be at least one new moon. In February, if there is a new moon on the last day of January, there will not be another new moon until the first of March. Presumably this happens about 3% of the time (given there are 31 days in January.) So on average every 3-ish years there is a February without a new moon. It's a little more complicated than that because of leap years, but it's about right.

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