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The waxing moon.

At 04:28:04 UT Thursday 22 October 2020
the moon’s phase is

WAXING CRESCENT (35.54% full)

 


Some factors that go into this equation:

Universal Time is 4.48444444444445 in decimal hours.
The Julian date is 2459144.85535081.
The sun’s ecliptic longitude is 209.258956424113 degrees.
Its mean anomaly is 288.3087524523 degrees.
The moon’s mean longitude is 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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