{{Short description|Exoplanet in its star's habitable zone}} {{Infobox planet | name = HD 136418 b / Awasis <!-- DISCOVERY -->| discoverer = Johnson ''et al.''<ref name="Johnson2010"/> | discovered = 2010 March 17 | discovery_method = [[Doppler spectroscopy]] <!-- DESIGNATIONS --> <!-- ORBITAL -->| apsis = astron | semimajor = {{convert|1.32|±|0.3|AU|km|abbr=on}} | eccentricity = 0.255 ± 0.041 | period = 464.3 ± 3.2 [[day|d]] | star = [[Nikawiy|HD 136418]] <!-- PHYS CHARS --> <!-- ATMOSPHERE --> <!-- NOTES -->}} '''HD 136418 b''', also known by its proper name '''Awasis''',<ref name="IAU Approved">{{cite web|url=http://www.nameexoworlds.iau.org/final-results|title=Approved names (§ Canada)|website=Name Exo Worlds|publisher=[[IAU]]|access-date=19 December 2019}}</ref> is an [[extrasolar planet]] orbiting the [[G-type star|G-type]] star HD 136418 approximately 320 light years away in the constellation [[Boötes]]<ref name="Johnson2010"/> It has a notable orbit, staying within the known [[habitable zone]].{{citation needed|date=November 2020}} It also has a star very similar in temperature as the [[Sun]].<ref>{{cite web |url=http://planetquest.jpl.nasa.gov/atlas/atlas_profile.cfm?Star=542 |title=PlanetQuest New Worlds Atlas |access-date=2010-06-03 |url-status=dead |archive-url=https://web.archive.org/web/20100527202408/http://planetquest.jpl.nasa.gov/atlas/atlas_profile.cfm?Star=542 |archive-date=2010-05-27 }}</ref>
It was named "Awasis" by representatives of [[Canada]] in the 2019 [[NameExoWorlds]] contest held by the [[IAU]], named after the [[Cree language|Cree]] word for "child". In the same competition, The planet's parent star HD 136418 was named "Nikawiy" after the Cree word for "mother".<ref name="IAU Approved"/>
==See also== * [[HD 4313 b]] * [[HD 181342 b]] * [[HD 206610 b]] * [[HD 180902 b]] * [[HD 212771 b]]
==References== <references> <ref name="Johnson2010">{{cite journal | title=Retired a Stars and Their Companions. IV. Seven Jovian Exoplanets from Keck Observatory | last1=Johnson | first1=John Asher | last2=Howard | first2=Andrew W. | last3=Bowler | first3=Brendan P. | last4=Henry | first4=Gregory W. | last5=Marcy | first5=Geoffrey W. | last6=Wright | first6=Jason T. | last7=Fischer | first7=Debra A. | last8=Isaacson | first8=Howard | display-authors=1 | journal=Publications of the Astronomical Society of the Pacific | volume=122 | issue=892 | pages=701–711 | year=2010 | arxiv=1003.3445 | bibcode=2010PASP..122..701J | doi=10.1086/653809 | s2cid=188131 }}</ref> </references>
==External links== * {{cite encyclopedia | url=https://exoplanet.eu/catalog/hd_136418_b--658/ | encyclopedia=[[Extrasolar Planets Encyclopaedia]] | title=HD 136418 b }}
{{Sky|15|19|07|+|41|43|60}}
[[Category:Exoplanets discovered in 2009]] [[Category:Exoplanets detected by radial velocity]] [[Category:Boötes]] [[Category:Giant planets]] [[Category:Exoplanets with proper names]]
{{Boötes}}{{extrasolar-planet-stub}}