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65 - Schickard

Published online by Cambridge University Press:  05 October 2012

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Summary

Schickard 44.3°S, 55.3°W

Schickard is a very large, old crater, 206 km in diameter, with a relatively smooth and level floor. Under certain lighting conditions the crater's floor appears convex, bulging upwards slightly. Following its formation, the crater was re-structured by the Mare Orientale impact, almost 1200 km away. Bright ejecta from the Orientale impact may be observed on the crater's floor and the western wall exhibits radial, linear furrows and graben, oriented to the centre of Mare Orientale. Long after the Orientale impact, the northern and southern portion of the crater's floor were flooded with dark lava.

Wargentin 49.6°S, 60.2°W

Wargentin is one of the rare plateau craters, and is filled to the rim with dark lava. The crater's floor lies about 400 m above the surrounding terrain and is crossed by a mare wrinkle ridge. The network of the range of hills possibly marks the location of the former central mountains and ridges. A craterlet, surrounded by a dark halo, lies on the southern portion of the crater's floor. Because of its location near the limb, Wargentin is best observed at favourable libration angles.

Phocylides 52.7°S, 57.0°W

A large, lava-filled old crater, 120 km in diameter, and with 2.1 km high crater walls. The eastern wall is completely eroded. The crater Phocylides C, 46 km across, directly adjoins it on the northwest.

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Publisher: Cambridge University Press
Print publication year: 2012

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