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At 21:24:21 UT Sunday 03 December 2017
the moon’s phase will be
is 21.4225 in decimal hours.
The Julian date will be 2458091.49925561.
The sun’s ecliptic longitude will be 251.946724948684 degrees.
Its mean anomaly will be 330.1320617242 degrees.
The moon’s true longitude will be 1515.07356246105 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.)