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The new moon.

At 16:39:34 UT Wednesday 17 January 2018
the moon’s phase is


Time Zone:   

Some factors that go into this equation:

Universal Time is 16.6761111111111 in decimal hours.
The Julian date is 2458135.5031702.
The sun’s ecliptic longitude is 297.532448875968 degrees.
Its mean anomaly is 14.2912650257 degrees.
The moon’s true longitude is 2103.98785877976 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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