Skip to main content

Hartwig (Martian crater)








Hartwig (Martian crater)


From Wikipedia, the free encyclopedia

Jump to navigation
Jump to search












Hartwig Crater

HartwigMartianCrater.jpg
Topographic map of Hartwig Crater

Planet
Mars
Coordinates
39°S 16°W / 39°S 16°W / -39; -16Coordinates: 39°S 16°W / 39°S 16°W / -39; -16
Diameter
105 km
Eponym
Ernst Hartwig, a German astronomer (1851-1923)

Hartwig Crater is a crater in the Argyre quadrangle of Mars, located at 39° south latitude and 16° west longitude. It is 105 km in diameter and was named after Ernst Hartwig, a German astronomer (1851–1923).[1]


The crater is located under a crater diameter southwest of Vogel, other nearby prominent and named craters include the larger Lohse to the south, Arkhangelsky to the west-southwest, the tiny Nybyen under a crater diameter north and further north are Mena and Shatskiy.


Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak.[2] The peak is caused by a rebound of the crater floor following the impact.[3] If one measures the diameter of a crater, the original depth can be estimated with various ratios. Because of this relationship, researchers have found that many Martian craters contain a great deal of material; much of it is believed to be ice deposited when the climate was different.[4]



See also[edit]



  • Argyre quadrangle

  • Climate of Mars

  • Glacier

  • Glaciers on Mars

  • Impact crater

  • Impact event

  • List of craters on Mars

  • Ore resources on Mars

  • Planetary nomenclature

  • Water on Mars



References[edit]




  1. ^ "Gazetteer of Planetary Nomenclature | Hartwig". usgs.gov. International Astronomical Union. Retrieved 4 March 2015. 


  2. ^ http://www.lpi.usra.edu/publications/slidesets/stones/


  3. ^ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. Retrieved 7 March 2011. 


  4. ^ Garvin, J., et al. 2002. Global geometric properities of martian impact craters. Lunar Planet Sci. 33. Abstract @1255.













Retrieved from "https://en.wikipedia.org/w/index.php?title=Hartwig_(Martian_crater)&oldid=847740602"





Navigation menu

























(window.RLQ=window.RLQ||).push(function()mw.config.set("wgPageParseReport":"limitreport":"cputime":"0.436","walltime":"0.565","ppvisitednodes":"value":1286,"limit":1000000,"ppgeneratednodes":"value":0,"limit":1500000,"postexpandincludesize":"value":199570,"limit":2097152,"templateargumentsize":"value":33851,"limit":2097152,"expansiondepth":"value":13,"limit":40,"expensivefunctioncount":"value":0,"limit":500,"unstrip-depth":"value":0,"limit":20,"unstrip-size":"value":7732,"limit":5000000,"entityaccesscount":"value":1,"limit":400,"timingprofile":["100.00% 345.653 1 -total"," 31.71% 109.594 1 Template:Infobox_Mars_crater"," 28.63% 98.956 1 Template:Infobox_crater_data"," 27.05% 93.509 1 Template:Infobox"," 18.30% 63.267 1 Template:Reflist"," 15.99% 55.258 1 Template:Geography_of_Mars"," 14.95% 51.681 1 Template:Navbox_with_collapsible_groups"," 13.60% 47.014 1 Template:Coord"," 11.65% 40.284 1 Template:Cite_web"," 11.43% 39.499 1 Template:About"],"scribunto":"limitreport-timeusage":"value":"0.129","limit":"10.000","limitreport-memusage":"value":4350358,"limit":52428800,"cachereport":"origin":"mw2189","timestamp":"20180917232432","ttl":1900800,"transientcontent":false);mw.config.set("wgBackendResponseTime":94,"wgHostname":"mw2273"););

Popular posts from this blog

The Dalles, Oregon

眉山市

清晰法令