To look up the phase of the moon for any date,
just fill out the form below, then hit "Find Phase."

The full moon.

At 02:58:36 UT Monday 21 January 2019
the moon’s phase was

FULL

Time Zone:   

Some factors that go into this equation:

Universal Time is 2.99333333333333 in decimal hours.
The Julian date was 2458505.49985716.
The sun’s ecliptic longitude was 300.775401103975 degrees.
Its mean anomaly was 17.4332064596 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.)

 Send comments to info@moonpage.com.

© 1997–2019 by 3IP.