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.

People saw blue moons in 1983 after the eruption of the El Chichon volcano in Mexico, and there are reports of blue moons caused by Mount St. Helens in 1980 and Mount Pinatubo in 1991. The term …

The definition of a seasonal Blue Moon, the third Full Moon in an astronomical season with four Full Moons, can be traced back to the now-defunct Maine Farmer's Almanac.

Jan 10, 2025 · Check out this cool image of a Blue Moon captured by the European weather satellite MSG-3 just before the moon disappeared out of sight. Discover the difference between types of full …

In very rare circumstances, the Moon can appear blue, but in this case the colour would be caused by viewing the Moon through a haze of dust particles in our atmosphere, perhaps from a recent volcanic …

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. With this possible, …

When an extra Full Moon was thrown in it was referred to as a Blue Moon to keep the Full Moon names constant throughout the year. Another origin could be from the Christian ecclesiastical calendar.

Nov 19, 2019 · So, ‘blue moon’ as most of us today know it, is modern American folklore, but with a long interesting history involving calendars and the measuring of the year. Still, no matter what meaning …

However, this is not the so-called traditional definition of a blue moon. The "traditional" definition has been derived from the 1937 Maine Farmers' Almanac, a provincial US magazine. However,...

Jan 1, 2025 · The next seasonal Blue Moon on May 20, 2027, happens because June’s full moon falls about two days before the June solstice, early in the season of northern summer (southern winter).