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Clark Crater is a crater in the Phaethontis quadrangle of Mars, located at 55.6°S latitude and 133.4°W longitude. It is 98.0 km in diameter and was named after Alvan Clark, and the name was approved in 1973. Dunes are visible on the floor of the crater, and dust devil tracks are in the area. Both of these features can be seen in the pictures below. The thin, dark streaks are dust devil tracks. Wikiclark.jpg|Clark Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Wikiclarkdevils.jpg|Dust devil tracks just outside north rim of Clark Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement of the previous image of Clark Crater. Wikiclarkdunes.jpg|Dunes on floor of Clark Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Some dust devil tracks are also visible as dark, thin streaks. Note: this is an enlargement of a previous image of Clark Crater. ==See also== * Climate of Mars * Geology of Mars * Impact crater * List of craters on Mars * Barchan 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Clark (Martian crater)」の詳細全文を読む スポンサード リンク
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