{{Short description|One of 30 quadrangle maps of Mars used by the US Geological Survey}} {{Infobox feature on celestial object |name = Cebrenia [[quadrangle (geography)|quadrangle]] |image = [[File:USGS-Mars-MC-7-CebreniaRegion-mola.png|300px]] |caption = Elevation map of Cebrenia quadrangle from [[Mars Orbiter Laser Altimeter]] (MOLA) data. |coordinates = {{coord|47.5|N|210|W|globe:mars_type:landmark|display=inline,title}} |eponym = Land of [[Cebrenia]] near Troy }} [[File:PIA00167-MC-7-CebreniaRegion-19980605.jpg|thumb|300px|Image of the Cebrenia Quadrangle (MC-7). The northwest contains relatively smooth plains; the southeast contains [[Hecates Tholus]] (one of three Elysium shield volcanoes) and [[Phlegra Montes]] (a ridge system).]]
The '''Cebrenia quadrangle''' is one of a series of [[list of quadrangles on Mars|30 quadrangle maps of Mars]] used by the [[United States Geological Survey]] (USGS) [[Astrogeology Research Program]]. The [[quadrangle (geography)|quadrangle]] is located in the northeastern portion of Mars' eastern hemisphere and covers 120° to 180° east longitude (180° to 240° west longitude) and 30° to 65° north latitude. The quadrangle uses a [[Lambert conformal conic projection]] at a nominal scale of 1:5,000,000 (1:5M). The Cebrenia quadrangle is also referred to as MC-7 (Mars Chart-7).<ref>Davies, M.E.; Batson, R.M.; Wu, S.S.C. “Geodesy and Cartography” in Kieffer, H.H.; Jakosky, B.M.; Snyder, C.W.; Matthews, M.S., Eds. ''Mars.'' University of Arizona Press: Tucson, 1992.</ref> It includes part of [[Utopia Planitia]] and [[Arcadia Planitia]]. The southern and northern borders of the Cebrenia quadrangle are approximately {{convert|3065|km|mi|abbr=on}} and {{convert|1500|km|mi|abbr=on}} wide, respectively. The north to south distance is about {{convert|2050|km|mi|abbr=on}} (slightly less than the length of Greenland).<ref>Distances calculated using NASA World Wind measuring tool. http://worldwind.arc.nasa.gov/ {{Webarchive|url=https://web.archive.org/web/20180106075159/http://worldwind.arc.nasa.gov/ |date=2018-01-06 }}.</ref> The quadrangle covers an approximate area of {{Convert|4900000|km2|sqmi}}, about 3% of Mars' surface area.<ref>Approximated by integrating latitudinal strips with area of R^2 (L1-L2)(cos(A)dA) from 30° to 65° latitude; where R = 3889 km, A is latitude, and angles expressed in radians. See: https://stackoverflow.com/questions/1340223/calculating-area-enclosed-by-arbitrary-polygon-on-earths-surface.</ref>
==Etymology==
The feature is named after [[Cebrenia]], a country near ancient Troy. The name was approved by the [[International Astronomical Union]] (IAU) in 1958.<ref name=gazetteer_Cebrenia>{{cite web |url = https://planetarynames.wr.usgs.gov/Feature/1095 |title = Cebrenia |publisher = International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN) |date = 2006-10-01 |work = Gazetteer of Planetary Nomenclature |access-date = 2014-02-04 }}</ref>
==Physiography and geology== The quadrangle's prominent features are the large craters Mie and Stokes, a [[volcano]], [[Hecates Tholus]], and a group of mountains, [[Phlegra Montes]].
[[Viking 2]] (part of [[Viking program]]) landed near Mie on September 3, 1976. Its landing coordinates were 48° N and 226° W.<ref>''Ezell E. K., Ezell L. N.'' [http://www.hq.nasa.gov/office/pao/History/SP-4212/ch10.html On Mars: Exploration of the Red Planet. 1958-1978. (Chapter 10)] {{Webarchive|url=https://web.archive.org/web/20160603051119/http://www.hq.nasa.gov/office/pao/History/SP-4212/ch10.html |date=2016-06-03 }}. The NASA History Series. Scientific and Technical Information Branch, 1984. NASA, Washington, D.C.</ref>
== See also == {{div col|colwidth=30em}} * [[Climate of Mars]] * [[Geology of Mars]] * [[Glacier]] * [[Glaciers on Mars]] * [[HiRISE]] * [[HiWish program]] * [[Impact crater]] * [[Latitude dependent mantle]] * [[Lineated valley fill]] * [[List of quadrangles on Mars]] * [[List of mountains on Mars]] * [[List of rocks on Mars]] * [[Martian chaos terrain]] * [[Pedestal crater]] * [[Vallis (planetary geology)|Vallis]] * [[Volcanology of Mars]] * [[Water on Mars]] {{div col end}}
== References == {{reflist|colwidth=30em}}
== External links == {{commons category|Cebrenia quadrangle}} {{Mars quadrangle layout}} {{Mars}} {{Portal bar|Solar System}}
{{DEFAULTSORT:Cebrenia Quadrangle}} [[Category:Cebrenia quadrangle| ]] [[Category:Mars]]