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The waxing moon.

At 06:05:41 UT Tuesday 29 September 2020
the moon’s phase is

WAXING GIBBOUS (93.68% full)

 


Some factors that go into this equation:

Universal Time is 6.1113888888889 in decimal hours.
The Julian date is 2459122.43679102.
The sun’s ecliptic longitude is 186.564309662246 degrees.
Its mean anomaly is 265.7056796508 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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