To look up the phase of the moon for any date,
just fill out the form below, then hit "Find Phase."
At 19:29:50 UT Saturday 31 March 2018
the moon’s phase will be
is 19.5138888888889 in decimal hours.
The Julian date will be 2458209.49888503.
The sun’s ecliptic longitude will be 11.039792988106 degrees.
Its mean anomaly will be 86.3600657154 degrees.
The moon’s true longitude will be 3074.86680640238 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.)