Aristarchus
[ ar-uh-stahr-kuh s ]
/ ˌær əˈstɑr kəs /
noun
of Samos.late 3rd century b.c.,
Greek astronomer.
of Samothrace.c216–144 b.c.,
Greek philologist and critic.
an extremely bright crater in the second quadrant of the face of the moon: about 29 miles (47 km) in diameter from crest to crest.
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British Dictionary definitions for aristarchus
Aristarchus
/ (ˌærɪˈstɑːkəs) /
noun
a crater in the NE quadrant of the moon, having a diameter of about 37 kilometres, which is the brightest formation on the moon