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At 13:08:07 UT Monday 21 January 2019
the moon’s phase was
is 13.1519444444444 in decimal hours.
The Julian date was 2458505.49835872.
The sun’s ecliptic longitude was 301.205890902037 degrees.
Its mean anomaly was 17.8504068007 degrees.
The moon’s mean longitude was 318.351648 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.)