Question 1

What phase is the Moon in New York on September 15, 2025?

Accepted Answer

The Moon is Waning Crescent, 26% illuminated, on lunar day 24. It rises at 00:43 and sets at 16:38.

Question 2

What does 26% illumination mean?

Accepted Answer

The share of the Moon's visible disc that is lit by the Sun. 0% is new moon and 100% is full moon. Illumination changes fastest near the quarters and slowest near new and full moon.

Question 3

When can the Moon be seen on September 15, 2025?

Accepted Answer

The Moon is above the horizon for about 15h 55m, from 00:43 to 16:38, reaching at 76° at culmination.

Question 4

How accurate is this moon data?

Accepted Answer

Phase, illumination and moon events are computed from astronomical ephemerides for the city's coordinates and timezone. Moonrise and moonset also depend on the local horizon and elevation.

Moon phase for September 15, 2025

Waning Crescent

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