A rare astronomical event, the Black Moon, will occur this week. Learn what makes this event special and when you can expect to see it.
While most people are familiar with the term “Blue Moon,” a “ Black Moon ” is an equally rare phenomenon, and will occur this week. It is actually the inverse of a “Blue Moon.” It is either defined as the second new moon within a calendar month, or as the third new moon in a season of four new moon s. This month’s “ Black Moon ” falls under the former category, and will occur on Monday night, according to NASA. It follows the first new moon of the month, which occurred Dec. 1.
A “Blue Moon,” by contrast, occurs on the second full moon of the same month, or the third full moon during a season where there are four full moons. By the “two moons in a month” definition, there will not be a “Black Moon” in 2025, and there actually won’t be a “Blue Moon” either, as there are only 12 full moons and 12 new moons during the calendar year. There will be a “Black Moon” according to the latter definition of the term, as there will be four new moons during astronomical summer in the year 2025. The “Black Moon” would take place on Aug. 23. according to Calendar12.com
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