At 06:51:27 UT Saturday 18 January 2020
the waning moon’s phase is
is 6.87416666666666 in decimal hours.
The Julian date is 2458866.91809755.
The sun’s ecliptic longitude is 297.64153571823 degrees.
Its mean anomaly is 14.396930018 degrees.
The moon’s mean longitude is 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.)