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Showing posts from May 2, 2007


This May There Is the Rare Blue Moon

In May 2007, the full moon will appear twice. The first full moon is on May 2 nd and the second full moon is on May 31 st . This rare second moon is known as ‘Blue Moon.’ No! The moon will not change its color to blue. A blue moon is the second full moon in a month. This second moon is based Gregorian calendar and therefore this rare sighting has nothing to do with Hindu Calendars. But there will be two ‘poornimas’ (full moon) in May. The blue moon was last sighted on July 31, 2004 . Now you must be thinking about the phrase ‘once in a blue moon,’ which means ‘not very often.’ Yes, the phrase is related to this rare sighting of the moon. For a blue moon to appear there must be at least 30 days in a month because t he average number of days between two full moons is around 29 days. Because of this, February will never have a blue moon. After the Blue Moon on May 31 st 2007 one has to wait till December 31 st 2009 . Since the date is on 31 st , depending on the t