Dark moon
Last visible crescent of waning moon / From Wikipedia, the free encyclopedia
The term dark moon describes the last visible crescent of a waning Moon. The duration of a dark moon varies between 1.5 and 3.5 days, depending on its ecliptic latitude. In current astronomical usage, the new moon occurs in the middle of this dark period,[1] when the Moon and Sun are in conjunction. This definition has entered popular usage, so that calendars will typically indicate the date of the "new moon" rather than the "dark moon".
This article needs additional citations for verification. (August 2014) |
For other uses, see Dark moon (disambiguation).
Not to be confused with black moon.