Ross (Martian crater)

Ross Crater

Ross Crater as seen by MOLA which shows the elevations.
Planet	Mars
Coordinates	57°42′S 107°50′W / 57.7°S 107.84°WCoordinates: 57°42′S 107°50′W / 57.7°S 107.84°W
Diameter	82.51 km
Eponym	Frank E. Ross, an American astronomer (1874-1966)

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.^[1]

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  Ross Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter).
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  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.
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  CTX image of part of Ross Crater showing context for next image from HiRISE.
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  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.
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  Gullies in Ross Crater, as seen by HiRISE under HiWish program

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  Group of gullies in Ross Crater, as seen by HiRISE under HiWish program
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  Close-up of gullies showing multiple channels, as seen by HiRISE under HiWish program Note: this is an enlargement of a previous image.
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  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.
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  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.

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  Wide view of gullies in Ross Crater, as seen by HiRISE under HiWish program
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  Close view of many small gullies in Ross Crater, as seen by HiRISE under HiWish program Note: this is an enlargement of a previous image.
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  Close view of polygons near gullies in Ross Crater, as seen by HiRISE under HiWish program Note: this is an enlargement of a previous image.
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  Close view of polygons near gullies in Ross Crater, 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

References

1. "Gazetteer of Planetary Nomenclature | Ross". usgs.gov. International Astronomical Union. Retrieved 5 March 2015.