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The waning moon.

At 05:47:13 UT Monday 26 August 2019
the waning moon’s phase is

23.34% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 5.80361111111112 in decimal hours.
The Julian date is 2458721.73337503.
The sun’s ecliptic longitude is 152.705064676152 degrees.
Its mean anomaly is 231.4340970814 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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