Moon Exactly

Daily lunar detail

September 2251 Moon Calendar

The month opens with a Full Moon and closes with a Full Moon. It contains 5 exact major phase events.

SunMonTueWedThuFriSat1Full Moon2345678Last Quarter910111213141516New Moon17181920212223First Quarter24252627282930Full Moon

Icons use the common Northern Hemisphere convention: waxing light on the right, waning light on the left. Your sky may appear rotated at other latitudes.

Full MoonSeptember 1, 2251 at 12:22 AM UTC
Last QuarterSeptember 8, 2251 at 9:49 PM UTC
New MoonSeptember 16, 2251 at 1:05 PM UTC
First QuarterSeptember 23, 2251 at 6:33 AM UTC
Full MoonSeptember 30, 2251 at 1:18 PM UTC

The lunar story of September 2251

New Moon occurs September 16, 2251. Full Moon occurs September 1, 2251. The first major event is Full Moon on September 1, 2251, and the month progresses from 100% to 100% illumination at noon UTC on its boundary dates.

Choosing a day

Select any Moon to open its precise phase angle, illuminated fraction, elapsed age since New Moon, trend, and neighboring event. Date result pages remain shareable but are excluded from search indexing.

Questions, answered

Frequently asked questions

What time are daily phases calculated?

12:00 UTC, chosen deliberately to keep date-only selections stable worldwide.

Why can a local phase event fall on another date?

An event near 00:00 UTC may occur on the previous local date west of Greenwich or the next local date east of it.

Do the icons show sky orientation?

They use a Northern Hemisphere convention; actual orientation rotates with latitude and viewing angle.