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The full moon.

At 14:59:22 UT Sunday 03 December 2017
the moon’s phase was

FULL

Time Zone:   

Some factors that go into this equation:

Universal Time is 15.0061111111111 in decimal hours.
The Julian date was 2458091.49996642.
The sun’s ecliptic longitude was 251.675584473006 degrees.
Its mean anomaly was 329.8685493597 degrees.
The moon’s true longitude was 1511.01151045325 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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