Aristarchus

American  

[ar-uh-stahr-kuhs] / ˌær əˈstɑr kəs /

noun

1. of Samos. late 3rd century b.c., Greek astronomer.

2. of Samothrace. c216–144 b.c., Greek philologist and critic.

3. 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.

---

Aristarchus British  

/ ˌærɪˈstɑːkəs /

noun

1. a crater in the NE quadrant of the moon, having a diameter of about 37 kilometres, which is the brightest formation on the moon

---

Example Sentences

Because seifertite and stishovite are easily disturbed by thermal metamorphism, they inferred the silica fragment likely originated from the collision that formed the Aristarchus crater.

From Science Daily

Another important Greek astronomer, Aristarchus, devised formulas that he applied to data from a lunar eclipse to estimate the Earth's distance from both the Moon and the Sun.

From Salon

Astronomy journalist Colin Stuart traces the arc of discovery from the fourth-century bc heliocentricism of Aristarchus of Samos through solar spectroscopy, star formation and nuclear fusion, the “epic journey” of sunlight to Earth and more.

From Nature

Aristarchus of Samos would have been mesmerized with the latest discoveries of exoplanets.

From Scientific American

The ancient Greek astronomer Aristarchus, for example had proposed back in the third century BCE that Earth revolves around the sun instead.

From Scientific American