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The waxing moon.

At 01:18:40 UT Sunday 13 October 2019
the waxing moon’s phase was

99.35% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 1.32777777777778 in decimal hours.
The Julian date was 2458770.49351733.
The sun’s ecliptic longitude was 199.43594781347 degrees.
Its mean anomaly was 278.5613538008 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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