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At 11:51:49 UT Wednesday 10 May 2017
the moon’s phase was
is 11.8802777777778 in decimal hours.
The Julian date was 2457884.49847699.
The sun’s ecliptic longitude was 50.034653817382 degrees.
Its mean anomaly was 125.71117286428 degrees.
The moon’s true longitude was 225.561496073063 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.)