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At 11:51:49 UT Thursday 25 May 2017
the moon’s phase was
is 11.8802777777778 in decimal hours.
The Julian date was 2457898.50173345.
The sun’s ecliptic longitude was 64.482608431783 degrees.
Its mean anomaly was 140.49588321011 degrees.
The moon’s true longitude was 59.7102348815353 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.)