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The waxing moon.

At 05:28:27 UT Tuesday 29 September 2020
the moon’s phase was

WAXING GIBBOUS (93.56% full)

 


Some factors that go into this equation:

Universal Time is 5.49083333333333 in decimal hours.
The Julian date was 2459122.4355521.
The sun’s ecliptic longitude was 186.538888266638 degrees.
Its mean anomaly was 265.6801942781 degrees.
The moon’s mean longitude 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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