Question 1

What phase is the Moon in New York on December 27, 2023?

Accepted Answer

The Moon is Full Moon, 97% illuminated, on lunar day 16. It rises at 18:03 and sets at 09:34.

Question 2

What does 97% 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 December 27, 2023?

Accepted Answer

The Moon is above the horizon for about 15h 31m, from 18:03 to 09:34, 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 December 27, 2023

Full Moon

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