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At 16:31:50 UT Sunday 23 February 2020
the moon’s phase will be
is 16.5472222222222 in decimal hours.
The Julian date will be 2458902.5001.
The sun’s ecliptic longitude will be 334.518965394832 degrees.
Its mean anomaly will be 50.2774940828 degrees.
The moon’s mean longitude will be 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.)