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At 13:25:02 UT Saturday 11 February 2017
the moon’s phase was
is 13.4338888888889 in decimal hours.
The Julian date was 2457796.49646526.
The sun’s ecliptic longitude was 323.01267404726 degrees.
Its mean anomaly was 39.03801019745 degrees.
The moon’s true longitude was 149.829584625427 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.)