To look up the phase of the moon for any date,
just fill out the form below, then hit "Find Phase."
At 20:24:58 UT Sunday 03 December 2017
the moon’s phase will be
is 20.4327777777778 in decimal hours.
The Julian date will be 2458091.49950812.
The sun’s ecliptic longitude will be 251.90490045381 degrees.
Its mean anomaly will be 330.0914151786 degrees.
The moon’s true longitude will be 1514.44654602206 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.)