Question 1

What phase is the Moon in New York on September 18, 2029?

Accepted Answer

The Moon is Waxing Gibbous, 91% illuminated, on lunar day 11. It rises at 17:17 and sets at 04:40.

Question 2

What does 91% 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 18, 2029?

Accepted Answer

The Moon is above the horizon for about 11h 23m, from 17:17 to 04:40, reaching at 41° 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 18, 2029

Waxing Gibbous

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