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Plato and Alpine Valley
May 2, 2009 Copyright Ernie Mastroianni

Plato and Alpine Valley

The long break in the Alps Mountains of the moon's norther area is called Alpine Valley. There is a narrow rille that runs most of its length, and can be seen under ideal conditions with a large telescope. To the left of the valley is the smooth-bottomed crater Plato, about 100 kilometers across. This photo is the small part of a frame taken with a Nikon D80, a 16mm Brandon eyepiece mounted on the 20-inch Panarusky telescope at the Jim and Gwen Plunkett Observatory at Harrington Beach State Park, in Lake Church, Wisconsin.

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