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The waxing moon.

At 21:50:40 UT Friday 20 July 2018
the waxing moon’s phase is

61.18% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 21.8611111111111 in decimal hours.
The Julian date is 2458320.11182054.
The sun’s ecliptic longitude is 118.108242566837 degrees.
Its mean anomaly is 195.8633194984 degrees.
The moon’s true longitude is 4541.03115836608 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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