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Kerwan Crater northwest rim

Kerwan Crater northwest rim
Kerwan Crater northwest rim Dawn had this view on June 6, 2016, from an altitude of 240 miles (385 kilometers). The bright material at upper left is on the northwest rim of Kerwan Crater. Geologists have cataloged well over 130 locations on Ceres that are covered with reflective material. (The most famous deposits are in Occator Crater.) The brightness is because briny ice that had been on the surface sublimated, leaving behind salts, which reflect more sunlight than other minerals on the dwarf planet. Extending 174 miles (280 kilometers) across, Kerwan is the largest crater on Ceres. It is centered at 11°S, 124°E on the map shown last month. (Kerwan is a spirit of sprouting maize among the Hopi of Arizona in the US.) Full image and caption. NASA / JPL-Caltech / UCLA / MPS / DLR / IDA