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

The new moon.

At 16:27:35 UT Saturday 18 November 2017
the moon’s phase will be


Time Zone:   

Some factors that go into this equation:

Universal Time is 16.4763888888889 in decimal hours.
The Julian date will be 2458075.5001.
The sun’s ecliptic longitude will be 236.56182772528 degrees.
Its mean anomaly will be 315.1442213224 degrees.
The moon’s true longitude will be 1318.73950470482 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

© 1997–2017 by 3IP.