Moon Phase on May 23, 2010
Sunday, May 23, 2010
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First Quarter
77.3%
Illumination123.1°
Phase Angle10.1
Moon Age (days)Waxing
DirectionAbout the First Quarter Phase
Exactly half of the Moon's visible surface is illuminated — the right half in the Northern Hemisphere. Despite being called a 'quarter,' half the Moon is lit because we're one quarter of the way through the lunar cycle. The Moon rises around noon and sets around midnight.
More about First Quarter