Mike
@centyone
December 2024 will see a rare "black moon," a term for the second new moon in a calendar month. The second new moon of December will occur at 5:27 p.m. ET (2227 GMT) on Dec. 30, according to the U.S. Naval Observatory, two days after the waning moon passes by Mercury in the predawn sky. A second new moon is sometimes called a "black moon," just as two full moons in a month is sometimes called a "blue moon" — though neither is a true astronomical term.
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