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The waxing moon.

At 00:09:18 UT Saturday 27 May 2017
the waxing moon’s phase is

2.16% full

Time Zone:   

Some factors that go into this equation:

Universal Time is 0.171666666666667 in decimal hours.
The Julian date is 2457900.52156589.
The sun’s ecliptic longitude is 65.934198987605 degrees.
Its mean anomaly is 141.98632119002 degrees.
The moon’s true longitude is 82.8234272233579 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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