Question 1

What phase is the Moon in New York on August 12, 2025?

Accepted Answer

The Moon is Last Quarter, 78% illuminated, on lunar day 20. It rises at 22:06 and sets at 12:09.

Question 2

What does 78% 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 August 12, 2025?

Accepted Answer

The Moon is above the horizon for about 14h 4m, from 22:06 to 12:09, reaching at 63° 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 August 12, 2025

Last Quarter

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