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Ross Crater is an impact crater in the Thaumasia quadrangle of Mars located at 57.7 S and 107.84 W. It is 82.51 km in diameter. It was named after Frank E. Ross, an American astronomer (1874-1966). The crater's name was approved in 1973. Wikiross.jpg|Ross Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Wikirossgullies.jpg|Gullies on southern wall of Ross Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter). Note: this is an enlargement from the previous photo. Image:Context for Gullies in Ross crater.jpg|CTX image of part of Ross Crater showing context for next image from HiRISE. Image:Gullies in Ross Crater.JPG|Gullies in Ross Crater, as seen by HiRISE under the HiWish program. Because the gullies are on the narrow rim of a crater and they start at different heights, this example is not consistent with the model of gullies being caused by aquifers. WikirossESP 038986 1220.jpg|Gullies in Ross Crater, as seen by HiRISE under HiWish program ESP 040186 1215gullies.jpg|Group of gullies in Ross Crater, as seen by HiRISE under HiWish program ESP 040186 1215multiplechannels.jpg|Close-up of gullies showing multiple channels, as seen by HiRISE under HiWish program Note: this is an enlargement of a previous image. ESP 040186 1215polygons.jpg|Close-up of gullies showing polygons, as seen by HiRISE under HiWish program Polygons usually form in frozen ice-rich ground. Note: this is an enlargement of a previous image. ESP 040186 1215streamlined.jpg|Close-up of gullies showing streamlined forms in channels, as seen by HiRISE under HiWish program Note: this is an enlargement of a previous image. ==See also== * Martian Gullies * Water on Mars * Planetary nomenclature * Impact crater * List of craters on Mars * Thaumasia quadrangle 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「Ross (Martian crater)」の詳細全文を読む スポンサード リンク
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