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moon_phase_WaxC_25
September 14
Waxing Crescent
26%
moon_phase_WaxC_35
September 15
Waxing Crescent
36%
moon_phase_first
September 16
First Quarter
Illumination: 45%
moon_phase_WaxG_55
September 17
Waxing Gibbous
55%
moon_phase_WaxG_60
September 18
Waxing Gibbous
64%

Moon Phase on: September 16, 2018

On this day the Moon was in a First Quarter phase. This phase occurs roughly 7 days after the New Moon when the moon is one quarter of the way through its orbit around the earth. Exactly half the moon will be illuminated and half dark. On the day of the First Quarter phase the moon is high overhead at sunset and is visible until mid-night when it sets in the west. The First Quarter phase is a one-day event and in the following days enters a Waxing Gibbous phase becoming more illuminated each day until the Full Moon.

Visit the September 2018 Moon Phases Calendar to see all the daily moon phase for this month.

First Quarter Phase

The First Quarter on September 16 has an illumination of 45%. This is the percentage of the Moon illuminated by the Sun. The illumination is constantly changing and can vary up to 10% a day. On September 16 the Moon is 6.94 days old. This refers to how many days it has been since the last New Moon. It takes 29.53 days for the Moon to orbit the Earth and go through the lunar cycle of all 8 Moon phases.

The 8 Lunar Phases

There are 8 lunar phases the Moon goes through in its 29.53 days lunar cycle. The 4 major Moon phases are Full Moon, New Moon, First Quarter and Last Quarter. Between these major phases, there are 4 minor ones: the Waxing Crescent, Waxing Gibbous, Waning Gibbous and Waning Crescent. For more info on the Moon Cycle and on each phase check out Wikipedia Lunar Phase page.

TODAY'S MOON PHASEtodays moon

Phase Details for - September 16

Phase: First Quarter
Illumination: 45%
Moon Age: 6.94 days
Moon Angle: 0.50
Moon Distance: 398,464.55 km
Sun Angle: 0.53
Sun Distance: 150,376,029.64 km

Useful Moon Resources


First Quarter Moonrise and Moonset

first. first first moon rise
moon rise up average moon rise
moon rise up Average Mid-phase
moon rise up Average Moon Set