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Blue Moon,August 31, 2012 | by Anoop, Kumar
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Blue Moon,August 31, 2012

A blue moon can refer to either the third full moon in a season with four full moons, or the second full moon in a month. Most years have twelve full moons that occur approximately monthly. In addition to those twelve full lunar cycles, each solar calendar year contains roughly eleven days more than the lunar year of 12 lunations.

 

en.wikipedia.org/wiki/Blue_moon

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Taken on August 31, 2012