New Moon

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Day of Lunar Cycle

0; occurs every 29 or 30 days

Synodic Position


Angle of Sun-Earth-Moon

0°; in line with the Sun

Illuminated side

Turned completely away from Earth

Near side

Completely dark

Overlap between near side and illuminated side


Proportion of whole Moon that is both illuminated and near


Which part of the near side is illuminated?


Where visible at sunset?

Setting in west; visible only from Earthshine

Where visible at midnight?

Not visible.

Where visible at sunrise?

Rising in east; visible only from Earthshine

Where visible at noon?

Lost in daytime glare

Meridian Transit


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