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At 21:24:21 UT Thursday 19 October 2017
the moon’s phase will be
is 21.4225 in decimal hours.
The Julian date will be 2458045.5001.
The sun’s ecliptic longitude will be 206.703342222195 degrees.
Its mean anomaly will be 285.7779306868 degrees.
The moon’s true longitude will be 927.90779138781 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.)