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Moon Phase for Tuesday September 29th, 2009

The Moon phase for September 29th, 2009 is a Waxing Gibbous phase. This is the phase where the moon is more than 50% illuminated but has not yet reached 100% illumination (which would be a Full Moon).

In the Northern Hemisphere, the right side will be illuminated, and in the Southern hemisphere it’ll be the left side that is illuminated.

The Waxing Gibbous phase, like all moon phases, will last for just over 7 days. The actual length will vary because of the elliptical shaped orbit of the moon. During this Waxing Gibbous phase the moon will rise in the east in the mid- to late-afternoon and will be high in the eastern sky at sunset.

Assuming it’s a clear night, the Waxing Gibbous moon will then be visible through most of the night before setting just before sunrise.

Fun fact: the word Gibbous was first used in the 14th century and comes from the latin word gibbosus which means humpbacked.

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