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The full moon.

At 08:22:02 UT Wednesday 31 January 2018
the moon’s phase was


Time Zone:   

Some factors that go into this equation:

Universal Time is 8.3838888888889 in decimal hours.
The Julian date was 2458150.49933633.
The sun’s ecliptic longitude was 311.40992351856 degrees.
Its mean anomaly was 27.7497777271 degrees.
The moon’s true longitude was 2288.45748237512 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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