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Aristarchus Crater region - 25 June 2018, Geof Lewis

Aristarchus Crater region - 25 June 2018

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Description

Here is a look at the Aristarchus crater region of the Moon. Aristarchus is a 40km (24 miles) diameter circular impact crater some 9.7km (2.4 miles) deep in the NW of the Moon (23.7N 47.5W) . It is considered the brightest of the large formations on the lunar surface, with an albedo nearly double that of most lunar features. The feature is bright enough to be visible to the naked eye, and displays unusually bright features when viewed through a large telescope. It is also readily identified when most of the lunar surface is illuminated by earthshine. The crater is deeper than the Grand Canyon.

To it's left in the image is the slightly smaller (35km dia) and shallower (4.1km) crater Herodotus.

To the north of the 2 craters is a system of rilles known as Rimea Aristarchus, which extend for approximately 121 km. Sources Wikipedia & Virtual Moon Atlas v6.0.

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Aristarchus Crater region - 25 June 2018, Geof Lewis

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Lunar