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23 - Aristoteles/Eudoxus

Published online by Cambridge University Press:  05 October 2012

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Summary

Aristoteles 50.2°N, 17.4°E

A very prominent, young, large crater with a diameter of 87 km, which was probably created during the Eratosthenian period on the lunar timescale. Aristoteles has pronounced terraced inner crater walls, and the crater floor lies 3.3 km below the crater rim. Remnants of central mountains are detectable. The crater floor is relatively smooth and is divided, in a north-south direction by a flat ridge (only visible under grazing illumination). Beneath the western wall of the crater, a landslide is clearly visible. A small crater chain lies on the southern wall and the eastern wall has been overlain by Mitchell (49.7°N, 20.2°E), a crater 30 km in diameter. Mitchell's crater floor is slightly convex. As with the crater Aristillus, Aristoteles is also surrounded by a broad, circular zone of melted impact material.

Eudoxus 44.3°N, 16.3°E

Eudoxus is another prominent crater with terraced crater walls. It has a diameter of 67 km and a depth of 3.4 km. The floor of the crater, when compared with that of Aristoteles, appear significantly rougher. Both craters form a very conspicuous pair in the northeastern quadrant of the Moon.

Egede 48.7°N, 10.6°E

A crater, 37 km in diameter, that is almost completely filled with lava, with a somewhat angular shape, lying west of Aristoteles and Eudoxus. On the middle of the southern wall there is a crater pit, as there is on the northwestern portion of the crater floor. Large telescopes reveal about a dozen pits (between about 1 and 2 km in diameter) on the southwestern crater floor.

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Publisher: Cambridge University Press
Print publication year: 2012

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