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The waning moon.

At 04:22:50 UT Friday 28 October 2016
the waning moon’s phase is

5.82% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 4.39722222222223 in decimal hours.
The Julian date is 2457689.55815931.
The sun’s ecliptic longitude is 215.209664243637 degrees.
Its mean anomaly is 294.1882668117 degrees.
The moon’s true longitude is 187.299350398506 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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