Saheki (crater)
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Saheki is a
crater A crater is a landform consisting of a hole or depression (geology), depression on a planetary surface, usually caused either by an object hitting the surface, or by geological activity on the planet. A crater has classically been described ...
on
Mars Mars is the fourth planet from the Sun. It is also known as the "Red Planet", because of its orange-red appearance. Mars is a desert-like rocky planet with a tenuous carbon dioxide () atmosphere. At the average surface level the atmosph ...
, located in the Iapygia quadrangle at 21.75° S and 286.97° W. It measures approximately 82 kilometers in diameter and was named after Tsuneo Saheki, a Japanese amateur astronomer (1916–1996). The naming was adopted by IAU's Working Group for Planetary System Nomenclature in 2006. The crater contains a number of
alluvial fan An alluvial fan is an accumulation of sediments that fans outwards from a concentrated source of sediments, such as a narrow canyon emerging from an escarpment. They are characteristic of mountainous terrain in arid to Semi-arid climate, semiar ...
s, which are preserved in
inverted relief Inverted relief, inverted topography, or topographic inversion refers to landscape features that have reversed their elevation relative to other features. It most often occurs when low areas of a landscape become filled with lava or sediment t ...
. Wikisuzhimola.jpg, MOLA map showing Saheki Crater and nearby craters. Colors indicate elevations. Image:Saheki Crater.jpg, A smaller crater inset within Saheki Crater, as seen by HiRISE. Image:Saheki Crater closeup of layers.JPG, Close-up of Saheki Crater layers, as seen by HiRISE.


See also

* 4606 Saheki, minor planet *
Climate of Mars The climate of Mars has been a topic of scientific curiosity for centuries, in part because it is the only terrestrial planet whose surface can be easily directly observed in detail from Earth with help from a telescope. Although Mars is small ...
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Geology of Mars The geology of Mars is the scientific study of the surface, crust, and interior of the planet Mars. It emphasizes the composition, structure, history, and physical processes that shape the planet. It is analogous to the field of terrestrial geo ...
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List of craters on Mars __NOTOC__ This is a list of craters on Mars. Impact craters on Mars larger than exist by the hundreds of thousands, but only about one thousand of them have names. Names are assigned by the International Astronomical Union after petitioning ...
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Ore resources on Mars Mars may contain ores that would be very useful to colonization of Mars, potential colonists. The abundance of volcanic features together with widespread cratering are strong evidence for a variety of ores. While nothing may be found on Mars that ...
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Planetary nomenclature Planetary nomenclature, like terrestrial nomenclature, is a system of uniquely identifying features on the surface of a planet or natural satellite so that the features can be easily located, described, and discussed. Since the invention of the ...


References

Impact craters on Mars Iapygia quadrangle {{Mars-crater-stub