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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.
23 juin 2024 · Learn what a blue moon is, when and how often it occurs, and why it is called a blue moon. Find out the difference between a blue moon and a lunar eclipse, and the cultural significance of blue moons in various calendars.
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.
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.
27 juil. 2006 · Learn how the term "Blue Moon" evolved from a seasonal pattern to a calendar rule, and how it differs from the modern meaning of the second full Moon in a month. Explore the history and folklore of Blue Moons with examples and sources.
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.
