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The waning moon.

At 00:21:59 UT Wednesday 13 June 2018
the waning moon’s phase was

1.00% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 0.383055555555557 in decimal hours.
The Julian date was 2458282.50995339.
The sun’s ecliptic longitude was 81.982244064648 degrees.
Its mean anomaly was 158.5122927838 degrees.
The moon’s true longitude was 4030.53071338369 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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