The inner wall is terraced and rises from the crater's floor, at a depth of 3,750 meters, to a height of 900 m above the surrounding maria. Three distinct terraces are visible, as well as arc-shaped landslides due to slumping of the inner wall as the crater debris subsided. A group of central mountains rises to 400 m above the floor.
Copernicus is a mere 800 million years old. Material ejected from it forms a bright system of rays out to a distance of 800 km from the crater. These rays are superposed on all other surrounding terrains which places the crater in its namesake age group: the Copernican system, established as the youngest assemblage of rocks on the Moon
Related categories CRATERS
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