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The waxing moon.

At 05:58:39 UT Friday 27 November 2020
the moon’s phase is

WAXING GIBBOUS (91.17% full)


Some factors that go into this equation:

Universal Time is 5.99416666666668 in decimal hours.
The Julian date is 2459181.41167435.
The sun’s ecliptic longitude is 245.492830837411 degrees.
Its mean anomaly is 323.8540595203 degrees.
The moon’s mean longitude on 00 January 1990 was 318.351648 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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