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At 00:59:39 UT Wednesday 13 June 2018
the waning moon’s phase was
is 1.01083333333333 in decimal hours.
The Julian date was 2458282.50933329.
The sun’s ecliptic longitude was 82.007224082282 degrees.
Its mean anomaly was 158.5380747633 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.)