The most literal meaning of blue moon is when the moon (not necessarily a full moon) appears to a casual observer to be unusually bluish, which is a rare event. The effect can be caused by smoke or dust particles in the atmosphere. According to modern folklore, a Blue Moon is the second full moon in a calendar month. Usually months have only one full moon, but occasionally a second one sneaks in. Full moons are separated by 29 days, while most months are 30 or 31 days long; so it is possible to fit two full moons in a single month. This happens every two and a half years, on average. A "blue moon" is also used colloquially to mean "a rare event"
Blue Moon is when there are two full moons in one month, which is a rare event. Usually full moon comes after every 29 days so it can fit in any month but on an average it happens once in 2-3 years.
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The most literal meaning of blue moon is when the moon (not necessarily a full moon) appears to a casual observer to be unusually bluish, which is a rare event. The effect can be caused by smoke or dust particles in the atmosphere.
According to modern folklore, a Blue Moon is the second full moon in a calendar month. Usually months have only one full moon, but occasionally a second one sneaks in.
Full moons are separated by 29 days, while most months are 30 or 31 days long; so it is possible to fit two full moons in a single month. This happens every two and a half years, on average.
A "blue moon" is also used colloquially to mean "a rare event"
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Blue Moon is when there are two full moons in one month, which is a rare event. Usually full moon comes after every 29 days so it can fit in any month but on an average it happens once in 2-3 years.
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