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- Dictionaryblue moon
noun
- 1. a phenomenon whereby the moon appears bluish owing to smoke or dust particles in the atmosphere: "people saw blue moons for years after the 1883 eruption of Krakatoa"
- 2. a second full moon in a calendar month: "tomorrow's full moon is a blue moon"
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A blue moon refers either to the presence of a second full moon in a calendar month, to the third full moon in a season containing four, or to a moon that appears blue due to atmospheric effects. [2] The calendrical meaning of "blue moon" is unconnected to the other meanings.
May 16, 2021 · A blue moon, by the most common definition, is a second full moon that appears in a calendar month. This moon looks no different than any regular full moon, explains Walter...
Aug 20, 2024 · Blue moon, the second full moon in a calendar month. The period from one full moon to another is about 29 12 days, so when two occur in the same month, the first of these full moons is always on the first or second day of the month. February, which has only 28 days (29 days in leap years), can.
There are two different definitions for a Blue Moon. A seasonal Blue Moon is the third Full Moon of an astronomical season that has four Full Moons. A monthly Blue Moon is the second Full Moon in a calendar month with two Full Moons.
Aug 24, 2012 · Blue Moon: A Variety of Meanings. Full Moons — are they ever really 'blue?' Courtesy Franz X. Kohlhauf. In fact, the very earliest uses of the term were remarkably like saying the Moon is made of green cheese. Both were obvious absurdities, about which there could be no doubt.
Sep 12, 2020 · What exactly is a blue moon? At first glance that might sound ordinary. But a blue moon is much more special than you might think! This “bonus moon” means we have 13 full moons in a calendar year, rather than the typical 12 full moons.
The term blue moon originated from the 16th-century expression “the Moon is blue,” meaning something that was impossible. For two years following the eruption of the Krakatoa volcano in Indonesia in 1883, people around the world reported seeing strangely coloured sunsets and a Moon that appeared blue.
