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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.
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. The calendrical meaning of "blue moon" is unconnected to the other meanings.
23 juin 2024 · A blue moon is the second full moon in a calendar month, and the period from one full moon to another is about 29 1/2 days. So, when two full moons occur in the same month, the first one is always on the first or second day of the month and the second one is on the 30th or 31st day.
15 janv. 2024 · Learn what a Blue Moon is and how it differs from a monthly and seasonal one. Find out when the next Blue Moon will occur and why it may not be visible in some time zones.
17 août 2023 · Learn what a supermoon, a blue moon, and a super blue moon are, and how they differ from each other. Find out when the next super blue moons will occur and why they are not always blue or super-sized.
1 août 2023 · Learn what a blue moon is and how it differs from a seasonal blue moon. Find out when the next blue moon will occur and see photos of past blue moons.
13 janv. 2024 · A Blue Moon is a rare occurrence that depends on the timings of full moons during the year. We will experience a Blue Moon this year, here's what to expect.
