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The new moon.

At 21:24:21 UT Saturday 18 November 2017
the moon’s phase will be

NEW

Time Zone:   

Some factors that go into this equation:

Universal Time is 21.4225 in decimal hours.
The Julian date will be 2458075.50151407.
The sun’s ecliptic longitude will be 236.769779462186 degrees.
Its mean anomaly will be 315.3473513784 degrees.
The moon’s true longitude will be 1321.22976482268 degrees.

These calculations incorporate the switch to the English New Style (N.S.)—i.e., Gregorian— calendar after Wednesday, 02 September 1752; the next day became Thursday, 14 September, skipping eleven days. (Please also note that, while fairly accurate, these calculations remain a bit buggy.)

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