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At 20:40:24 UT Monday 16 April 2018
the waxing moon’s phase was
is 20.69 in decimal hours.
The Julian date was 2458224.50763277.
The sun’s ecliptic longitude was 26.819213170117 degrees.
Its mean anomaly was 102.1787247012 degrees.
The moon’s true longitude was 3276.84332226612 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.)