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The Moon is between Earth and the Sun, making it invisible from Earth. Occurs approximately every 29.5 days.

The last visible phase before another New Moon, with the illuminated portion decreasing. Occurs approximately every 29.5 days.

The Moon starts to lose its illumination after the Full Moon, but more than half is still lit. Occurs approximately every 29.5 days.

Half of the Moon's disk is illuminated, and the phase is one quarter of the way through its cycle. Occurs approximately every 29.5 days.

A sliver of the Moon becomes visible after the New Moon, with illumination increasing. Occurs approximately every 29.5 days.

The entire disk of the Moon is illuminated, opposite the Sun. Occurs approximately every 29.5 days.

Also known as the Third Quarter. Half of the Moon's disk is illuminated, now three quarters of the way through its cycle. Occurs approximately every 29.5 days.