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The waxing moon.

At 03:45:44 UT Tuesday 21 August 2018
the waxing moon’s phase is

76.25% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 3.7788888888889 in decimal hours.
The Julian date is 2458352.26250239.
The sun’s ecliptic longitude is 148.036921619175 degrees.
Its mean anomaly is 226.6614226307 degrees.
The moon’s mean longitude is 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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