
The moon will reach its last quarter phase on Tuesday (Aug. 8) when it will be half illuminated by the sun.
From New York City, the last quarter moon — also known as the third quarter moon — will be visible from 11:30 p.m. EDT (03:30 GMT) shortly after it rises, according to In the Sky. The half-illuminated moon will be visible until shortly before it drops below the horizon at around 1:46 p.m. EDT (1756 GMT) on Wednesday, Aug. 9.