Question 1

What phase is the Moon in New York on September 27, 2029?

Accepted Answer

The Moon is Last Quarter, 71% illuminated, on lunar day 20. It rises at 21:53 and sets at 13:22.

Question 2

What does 71% 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 27, 2029?

Accepted Answer

The Moon is above the horizon for about 15h 29m, from 21:53 to 13:22, reaching at 73° 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 27, 2029

Last Quarter

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