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The waning moon.

At 02:33:05 UT Wednesday 08 July 2020
the moon’s phase is

WANING GIBBOUS (90.66% full)

 


Some factors that go into this equation:

Universal Time is 2.56805555555556 in decimal hours.
The Julian date is 2459039.40655301.
The sun’s ecliptic longitude is 106.394545404036 degrees.
Its mean anomaly is 183.7514291902 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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