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The waxing moon.

At 16:57:13 UT Sunday 15 July 2018
the waxing moon’s phase is

9.91% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 16.9702777777778 in decimal hours.
The Julian date is 2458314.59914995.
The sun’s ecliptic longitude is 113.1459378817 degrees.
Its mean anomaly is 190.7342228437 degrees.
The moon’s true longitude is 4469.85311625824 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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