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Rao Crater on the limb Dawn had this view of Ceres' limb on May 30, 2016, from its low-altitude mapping orbit 240 miles (385 kilometers) above the alien world. At the bottom is Rao Crater, 7 miles (12 kilometers) in diameter. (Rao was a god associated with the planting of turmeric for the Mangarevan people of Polynesia.) This is one of the occasional scenic photographs of the landscape reaching to the horizon. (We saw another last month as well.) Full image and caption. NASA / JPL-Caltech / UCLA / MPS / DLR / IDA