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Waning Gibbous on 01/16/2017
January 16
Waning Gibbous
81%
Waning Gibbous on 01/17/2017
January 17
Waning Gibbous
73%
Waning Gibbous on 01/18/2017
January 18
Waning Gibbous
Illumination: 64%
Last Quarter on 01/19/2017
January 19
Last Quarter
54%
Waning Crescent on 01/20/2017
January 20
Waning Crescent
45%

Moon Phase: January 18, 2017

On this day the Moon was in a Waning Gibbous. During this phase the Moon can be seen in the early morning daylight hours on the western horizon. This is the first phase after the Full Moon occurs. It lasts roughly 7 days with the Moon’s illumination growing smaller each day until the Moon becomes a Last Quarter Moon with an illumination of 50%. The average Moon rise for this phase is between 9pm and Midnight depending on the age of the phase. The moon rises later and later each night setting after sunrise in the morning.

Visit the January 2017 Moon Phases Calendar to see all the daily moon phase for this month.

Waning Gibbous Phase

The Waning Gibbous on January 18 has an illumination of 64%. 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 January 18 the Moon is 20.85 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 - January 18

Phase: Waning Gibbous
Illumination: 64%
Moon Age: 20.85 days
Moon Angle: 0.50
Moon Distance: 398,848.64 km
Sun Angle: 0.54
Sun Distance: 147,191,475.24 km

Useful Moon Resources


Waning Gibbous Moonrise and Moonset

WanG_60. WanG_60 WanG_60 moon rise
moon rise up average moon rise
moon rise up Average Mid-phase
moon rise up Average Moon Set