Crescent Moon - a thin fraction of the moon's day side, or illuminated side, and a larger fraction of the moon's night side, the side of the moon submerged in the moon's own shadow. ... We see only a slender fraction of the day side: a crescent moon.
First Quarter phase. This phase occurs roughly 7 days after the new moon when the moon is one quarter of the way through its orbit around the earth. Exactly half the moon will be illuminated and half dark.
Close up of the moon, showing the Montes Apenninus a rugged mountain range on the northern part of the Moon's near side. Named after the Apennine Mountains in Italy their formation dating back about 3.9 billion years.