Kepler-62e: Difference between revisions
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Kepler 62-e is a planet that looks like earth. And earth is cool. So Kepler-62e is kewl. duh end. |
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__NOTOC__ |
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{{Planetbox begin |
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| name=[http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=KOI-701 Kepler-62e] |
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}} |
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{{Planetbox image |
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|image = Kepler-62f with 62e as Morning Star.jpg |
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|caption = Artist's impression of Kepler-62f ''(foreground)'' and Kepler-62e ''(bright, star-like reflection on right)'' orbiting the star Kepler-62 ''(center)''. |
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}} |
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{{Planetbox star |
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| star = [[Kepler-62]] (KOI-701) |
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| constell= [[Lyra (constellation)|Lyra]] |
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| RA = {{RA|18|52|51.06019}} |
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| DEC= {{DEC|+45|20|59.507}} |
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| dist_ly = ~1200 |
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| dist_pc = ~368<ref name="Borucki" /> |
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| app_mag =13.654<ref name="kepler-catalogue">{{cite web |title=Kepler Input Catalog search result |publisher=Space Telescope Science Institute |url=http://archive.stsci.edu/kepler/kic10/search.php?kic_kepler_id=9002278&action=Search |accessdate=18 April 2013}}</ref> |
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| mass = 0.69 (± 0.02)<ref name="Borucki" /> |
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| radius = 0.64 (± 0.02)<ref name="Borucki" /> |
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| temperature = 4925 (± 70)<ref name="Borucki" /> |
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| metallicity = -0.37 (± 0.04)<ref name="Borucki" /> |
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| age = 7 (± 4)<ref name="Borucki" /> |
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}} |
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{{Planetbox character |
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| mass_earth = Unknown value less than or equal to 36; Earth's density would give it a mass of 4.17.<ref>http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-62+e&type=CONFIRMED_PLANET</ref> |
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| radius_earth = 1.61 (± 0.05)<ref name="Borucki" /> |
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| stellar_flux = 1.2 ± 0.2 |
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<!-- | density_cgs = --> |
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| temperature = {{convert|270|K|C F}} |
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}} |
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{{Planetbox orbit |
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| period = 122.3874<ref name="Borucki" /> |
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| semimajor = 0.427<ref name="Borucki" /> |
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| eccentricity = ~0<ref name="Borucki" /> |
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| inclination = 89.98<ref name="Borucki" /> |
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}} |
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{{Planetbox discovery |
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| discovery_date = 18 April 2013<ref name="Borucki" /> |
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| discoverers = Borucki ''et al.'' |
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| discovery_site = [[Kepler (spacecraft)|Kepler Space Observatory]] |
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| discovery_method = [[Methods of detecting extrasolar planets#Transit method|Transit]] ([[Kepler Mission]])<ref name="Borucki" /> |
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| detection_methods = Transit timing variation |
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| discovery_status = Published refereed article |
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}} |
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{{Planetbox catalog |
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| names = KOI-701.03; K00701.03; 2MASS J18525105+4520595 e; KOI-701 e; KIC 9002278 e; WISE J185251.03+452059.0 e |
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}} |
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{{Planetbox reference |
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| star = Kepler-62 |
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| planet = e |
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}} |
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{{Planetbox end}} |
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'''Kepler-62e''' is a [[super-Earth]] [[exoplanet]] (extrasolar planet) discovered orbiting within the [[habitable zone]] of [[Kepler-62]], the second outermost of five such planets discovered by [[NASA]]'s [[Kepler (spacecraft)|Kepler spacecraft]]. Kepler-62e is located about {{convert|1200|ly|pc|lk=on|abbr=on}} from [[Earth]] in the constellation of [[Lyra (constellation)|Lyra]].<ref name="spacecomkepler62e">[http://www.space.com/24129-kepler-62e.html Kepler-62e: Super-Earth and Possible Water World ]</ref> The exoplanet was found using the [[transit method]], in which the dimming effect that a planet causes as it crosses in front of its star is measured. Kepler-62e may be a [[terrestrial planet|terrestrial]] or water-ice-dominated solid planet; it lies in the inner part of its host star's [[habitable zone]]<ref name="Borucki">{{Cite journal | last=Borucki | first=William J. | authorlink=William J. Borucki |display-authors=etal | title=Kepler-62: A Five-Planet System with Planets of 1.4 and 1.6 Earth Radii in the Habitable Zone | journal=Science Express| date=18 April 2013 | url = http://www.sciencemag.org/content/early/2013/04/17/science.1234702 |doi=10.1126/science.1234702 | accessdate=18 April 2013|arxiv = 1304.7387 |bibcode = 2013Sci...340..587B | volume=340 | issue=6132 | pages=587 }}</ref><ref name="space.com kepler">[http://www.space.com/20723-earth-like-alien-planets-habitable-zone-infographic.html 3 Potentially Habitable 'Super-Earths' Explained (Infographic)]</ref> and has an [[Earth Similarity Index#Planets with relatively high ESI|Earth Similarity Index]] of 0.83. |
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Given the planet's age (7 ± 4 billion years), [[Radiant flux|stellar flux]] (1.2 ± 0.2 times Earth's) and radius (1.61 ± 0.05 times Earth's), a rocky (silicate-iron) composition with the addition of a possibly substantial amount of water is considered plausible.<ref name="Borucki" /> A modeling study accepted in ''[[The Astrophysical Journal]]'' suggests it is likely that a great majority of planets in Kepler-62e's size range are completely covered by ocean.<ref name = "gazette">{{cite web |
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| title = Water worlds surface: Planets covered by global ocean with no land in sight |
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| work = [[Harvard Gazette]] |
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| date = 18 April 2013 |
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| url = http://news.harvard.edu/gazette/story/2013/04/water-worlds-surface/ |
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| accessdate = 19 April 2013}}</ref><ref name = "Kaltenegger_2013">{{cite journal |
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| author1=Kaltenegger, L. |
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| author2=Sasselov, D. |
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| author3=Rugheimer, S. |
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| title = Water Planets in the Habitable Zone: Atmospheric Chemistry, Observable Features, and the case of Kepler-62e and −62f |
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| journal = [[The Astrophysical Journal]] |
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| date = October 2013 |
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| arxiv = 1304.5058|bibcode = 2013ApJ...775L..47K |
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| volume = 1304 |
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| pages = 5058 |
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| doi=10.1088/2041-8205/775/2/L47 |
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| url=http://adsabs.harvard.edu/abs/2013ApJ...775L..47K |
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| accessdate=9 December 2014}}</ref> |
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Kepler-62e orbits its host star every 122 days and is roughly 60 percent larger<!--mass or diameter?--> than Earth.<ref>[http://www.indianexpress.com/news/superearths-two-earthlike-planets-that-could-host-life-discovered/1105249/ Super-Earths: Two Earth-like planets that could host life discovered]. ''Indian Express''. 20 April 2013</ref> |
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==Confirmed exoplanet and host star== |
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Kepler-62e is a [[super-Earth]] with a radius 1.61 times that of [[Earth]].<ref name="Borucki" /> The planet orbits a [[star]] that is slightly smaller and cooler than the Sun, named [[Kepler-62]], which is orbited by a total of five transiting planets, of which [[Kepler-62f]] has the longest orbital period.<ref name="Borucki" /> The star would appear a slight peach color to the naked eye.<ref name="Borucki" /> |
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{| class="wikitable" style="margin:0.5em auto; width:600px;" |
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! colspan=2 | [[Exoplanet|Notable Exoplanets]] – [[Kepler (spacecraft)|Kepler Space Telescope]] |
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|- valign=top style="font-size:88%; text-align:center;" |
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| colspan=2 | [[File:KeplerExoplanets-NearEarthSize-HabitableZone-20150106.png|600px]] Confirmed small exoplanets in [[habitable zone]]s.<br>(Kepler-62e, [[Kepler-62f]], [[Kepler-186f]], [[Kepler-296e]], [[Kepler-296f]], [[Kepler-438b]], [[Kepler-440b]], [[Kepler-442b]])<br>(Kepler Space Telescope; 6 January 2015).<ref name="NASA-20150106">{{cite web |last1=Clavin |first1=Whitney |last2=Chou |first2=Felicia |last3=Johnson |first3=Michele |title=NASA's Kepler Marks 1,000th Exoplanet Discovery, Uncovers More Small Worlds in Habitable Zones |url=http://www.jpl.nasa.gov/news/news.php?release=2015-003 |date=6 January 2015 |work=[[NASA]] |accessdate=6 January 2015 }}</ref></center> |
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|- valign=top style="font-size:88%; text-align:center;" |
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| [[File:Relative sizes of all of the habitable-zone planets discovered to date alongside Earth.jpg|301px]] Comparison of the sizes of planets [[Kepler-69c]], Kepler-62e, [[Kepler-62f]], and the [[Earth]].<br>(Exoplanets are artists' conceptions.) |
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| [[File:LombergA1024.jpg|299px]] The ''[[Kepler (spacecraft)|Kepler Space Telescope]]'' search volume, in the context of the [[Milky Way Galaxy]]. |
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|} |
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== Cultural impact == |
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On 9 May 2013, a [http://science.edgeboss.net/wmedia/science/sst2013/SP050913.wvx congressional hearing] by two [[U.S. House of Representatives]] [[United States congressional committee|subcommittees]] discussed "[https://science.house.gov/hearing/subcommittee-space-and-subcommittee-research-joint-hearing-exoplanet-discoveries-have-we Exoplanet Discoveries: Have We Found Other Earths?]," prompted by the discovery of [[exoplanet]] [[Kepler-62f]], along with ''Kepler-62e'' and [[Kepler-69c]]. A related [http://www.sciencemag.org/content/340/6132.toc special issue] of the journal [[Science (journal)|Science]], published earlier, described the discovery of the exoplanets.<ref name="SCI-20130503">{{cite journal |authors=Staff |title=Special Issue: Exoplanets |url=http://www.sciencemag.org/site/special/exoplanets/ |date=3 May 2013 |journal=[[Science (journal)|Science]] |accessdate=18 May 2013 }}</ref> ''Kepler-62f'' and the other Kepler-62 exoplanets are being specially targeted as part of the [[SETI]] search programs.<ref name="Kepler-62 SETI">{{cite web |title=Has Kepler Found Ideal SETI-target Planets? |url=http://www.seti.org/seti_kepler_62 |date=19 April 2013 |work=[[SETI Institute]] |accessdate=17 September 2013 }}</ref> |
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== See also == |
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* [[Habitability of red dwarf systems]] |
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* [[Kepler-62f]], another exoplanet in the [[Kepler-62]] system |
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* [[List of potentially habitable exoplanets]] |
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== References == |
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{{Reflist|2}} |
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== External links == |
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{{Commons category|Kepler Mission}} |
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* [http://www.nasa.gov/mission_pages/kepler/main/index.html NASA – Kepler Mission]. |
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* [http://kepler.nasa.gov/Mission/discoveries/ NASA – Kepler Discoveries – Summary Table]. |
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* [http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=Kepler-62+e&type=CONFIRMED_PLANET NASA – Kepler-62e] at [[NASA Exoplanet Archive|The NASA Exoplanet Archive]]. |
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* [http://exoplanets.org/detail/Kepler-62_e NASA – Kepler-62e] at [[Exoplanet Data Explorer|The Exoplanet Data Explorer]]. |
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* [http://exoplanet.eu/catalog/kepler-62_e/ NASA – Kepler-62e] at [[Extrasolar Planets Encyclopaedia|The Extrasolar Planets Encyclopaedia]]. |
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* [http://phl.upr.edu/projects/habitable-exoplanets-catalog Habitable Exolanets Catalog] at [[University of Puerto Rico at Arecibo|UPR-Arecibo]]. |
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{{Kepler-62}} |
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{{Exoplanets}} |
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{{Astrobiology}} |
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{{Extraterrestrial life}} |
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{{2013 in space}} |
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{{portal bar|Astrobiology|Astronomy}} |
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{{Sky|18|52|51.06019|+|45|20|59.507}} |
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[[Category:Exoplanets discovered by Kepler (spacecraft)|62e]] |
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[[Category:Exoplanets discovered in 2013]] |
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[[Category:Kepler-62]] |
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[[Category:Lyra (constellation)]] |
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[[Category:Super-Earths in the habitable zone]] |
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[[Category:Transiting exoplanets]] |
Revision as of 16:26, 13 November 2015
Kepler 62-e is a planet that looks like earth. And earth is cool. So Kepler-62e is kewl. duh end.