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 Wednesday 20 September 2017
the moon’s phase was

NEW

Time Zone:   

Some factors that go into this equation:

Universal Time is 16.4763888888889 in decimal hours.
The Julian date was 2458016.50257004.
The sun’s ecliptic longitude was 177.893433709565 degrees.
Its mean anomaly was 256.99102729563 degrees.
The moon’s true longitude was 543.705202109929 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.

© 1997–2017 by 3IP.