What can you see on the Moon with Eyes, Binoculars, Telescopes CYA 30 th January 2016 By Daniel Coe Mare Imbrium (Sea of Rains) Sea of Serenity Sea of Tranquility Sea of Nectar The lunar maria (singular: mare) are large, dark, basaltic plains, formed by ancient volcanic eruptions. They were called maria, Latin for "seas", by early astronomers who mistook them for actual seas. Mare Nubium (Sea of Clouds) The Moon by Eye The Moon in Binoculars Lunar Craters Copernicus Tycho Kepler Tycho was named after the Danish astronomer Tycho Brahe. A young crater with an estimated age of 108 million years 86km (53miles) across 4.8km (3miles) deep The crater rays are as long as 1500km (900 miles Cambridge to Scotland and back) Tycho The summit of the central peak is 2 km (6562 ft, 1.25 miles) above the crater floor The boulder is 120 meters wide, and the image is about 1,200 meters wide. Copernicus is a lunar impact crater named after the astronomer Nicolaus Copernicus. 93km (58miles) across 3.8km (2miles) deep. The crater rays (lines) are as long as 800 kilometers Copernicus Kepler was named after Johannes Kepler the German astronomer. 32km (20miles) across 2.6km (1.5miles) deep The crater rays extend over 300km (185miles) Kepler Hadley Rille / Apennine Mountains Apollo 15 Landing Site 45 years ago this July!