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{{Infobox planet
'''Proxima Centauri b''' (disebut juga '''Proxima b'''<ref name=":0">{{Cite web|url=http://www.cnn.com/videos/world/2016/08/24/earth-like-planet-discovered-orig-nws.cnn?adkey=bn|title=Earth-like planet discovered orbiting sun's neighbor|date=24 August 2016|publisher=[[CNN]]|access-date=24 August 2016|quote=A planet named Proxima b has been discovered orbiting the closest star to our sun.}}</ref><ref>{{Cite web|url=https://www.theguardian.com/science/2016/aug/24/earth-like-planet-found-orbiting-our-suns-nearest-star-raises-hopes-for-life-proxima-b|title=Discovery of potentially Earth-like planet Proxima b raises hopes for life|last=Davis|first=Nicola|date=24 August 2016|website=[[The Guardian]]|access-date=24 August 2016}}</ref>) adalah sebuah [[planet luar surya]] yang mengorbit dalam [[zona layak huni]] dari [[Katai merah|bintang katai merah]] [[Proxima Centauri]], bintang terdekat dengan [[Matahari]].<ref name="NYT-20160824">{{Cite news|url=http://www.nytimes.com/2016/08/25/science/earth-planet-proxima-centauri.html|title=One Star Over, a Planet That Might Be Another Earth|last=Chang|first=Kenneth|date=24 August 2016|work=[[New York Times]]|access-date=24 August 2016}}</ref><ref name="CNN article">{{Cite web|url=http://www.cnn.com/2016/08/24/health/proxima-b-centauri-rocky-planet-habitable-zone-neighbor-star/|title=Closest potentially habitable planet to our solar system found|last=Strickland|first=Ashley|date=24 August 2016|website=CNN Health|publisher=|access-date=25 August 2016}}</ref> Planet ini terletak sekitar 4,2 [[tahun cahaya]] (1.3 [[parsec]], 40 triliun [[Kilometer|km]], atau 25 triliun mil) dari Bumi di konstelasi [[Centaurus (rasi bintang)|Centaurus]]. Planet ini adalah planet luar surya terdekat dengan [[Tata Surya|tata surya]] serta planet layak  huni terdekat yang diketahui.
| name = Proxima Centauri b
| image = Artist’s impression of Proxima Centauri b shown hypothetically as an arid rocky super-earth.jpg
| caption = Penggambaran para ilustrator atas Proxima Centauri b sebagai eksoplanet dengan permukaan berbatu-batu, dengan sistem bintang biner Proxima Centauri dan [[Alpha Centauri]] pada latar belakang. Penampakan sebenarnya dari planet ini tidak diketahui.
<!-- DISCOVERY -->
| discoverer = Anglada-Escudé et al.
| discovery_site = [[Observatorium Selatan Eropa]]
| discovered = 24 Agustus 2016
| discovery_method = [[Spektroskopi Doppler]]
<!-- DESIGNATIONS -->
<!-- ORBITAL -->
| apsis = astron
| semimajor = {{val|0.0485|0.0041|0.0051}} [[Satuan astronomi|AU]]
| eccentricity = 0,124{{±|0,070|0,068}}
| period = 11,18427{{±|0,00066|0,00070}}<ref name=Mascareno2020/> [[hari|h]]
| arg_peri = 310 (± 50)<ref name=nature_paper />
| semi-amplitude = 1,38 (± 0,21)<ref name=nature_paper />
| star = [[Proxima Centauri]]
<!-- PHYS CHARS -->
| mean_radius = {{val|1.07|0.38|0.31}}<ref name=BA2017>{{cite journal|last1=Bixel|first1= A.| last2= Apai|first2=D. |title=Probabilistic Constraints on the Mass and Composition of Proxima b|journal=The Astrophysical Journal Letters|date=21 February 2017|volume=836|issue= 2|pages=L31|doi=10.3847/2041-8213/aa5f51|language= en|issn= 2041-8205|bibcode=2017ApJ...836L..31W|arxiv=1702.02542}}</ref>{{Earth radius|link=y}}, {{val|1.30|1.20|0.62}}<ref name="TaskerLaneuville2020">{{cite journal |last1=Tasker |first1=Elizabeth J. |last2=Laneuville |first2=Matthieu |last3=Guttenberg |first3=Nicholas |author-link1=Elizabeth J. Tasker|title=Estimating Planetary Mass with Deep Learning |journal=The Astronomical Journal|volume=159|issue=2|date=7 January 2020|pages=41|issn=1538-3881|doi=10.3847/1538-3881/ab5b9e|bibcode=2020AJ....159...41T|arxiv=1911.11035}}</ref>{{Earth radius|link=y}}
| mass = {{val|1.172|1.66|0.72}}<ref name=BA2017/>{{Earth mass|link=y}}, {{val|1.60|0.46|0.36}}<ref name="TaskerLaneuville2020"/>{{Earth mass|link=y}}
| surface_grav = ~1,1 [[Gravitasi|g]], <br />~0,95 [[Gravitasi|g]]
| single_temperature = {{convert|234|K|C F}}
<!-- ATMOSPHERE -->
<!-- NOTES -->
}}
 
Pada'''Proxima bulanCentauri Agustusb''' 2016,(disebut [[Observatoriumjuga Selatan'''Proxima Eropa]] mengumumkan penemuan planet ini.b'''<ref name="nature_paper">{{Cite journal|last=Anglada-Escudé|first=G.|last2=Amado|first2=P. J.|last3=Barnes|first3=J.|last4=Berdiñas|first4=Z. M.|last5=Butler|first5=R. P.|last6=Coleman|first6=G. A. L.|last7=de la Cueva|first7=I.|last8=Dreizler|first8=S.|last9=Endl|first9=M.|date=25 August 2016|title=A terrestrial planet candidate in a temperate orbit around Proxima Centauri|url=http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf|journal=Nature|language=en|volume=536|issue=7617|pages=437–440|doi=10.1038/nature19106|issn=0028-0836}}</ref><ref name="Pale Red Dot campaign reveals Earth-mass world in orbit around Proxima Centauri0">{{Cite web|url=http://www.esocnn.orgcom/publicvideos/newsworld/eso1629/|title=Planet Found in Habitable Zone Around Nearest Star|date=24 August 2016|publisher=[[European Southern Observatory]]|archive-date=24 August 2016|dead-url=no}}</ref><ref name="Space.com">{{Cite web|url=http:08/24/www.space.com/33834earth-discovery-oflike-planet-proximadiscovered-borig-nws.htmlcnn?adkey=bn|title="Found! Potentially Earth-Likelike Planetplanet atdiscovered Proximaorbiting Centaurisun's Is Closest Ever "neighbor|date=24 August 2016|publisher=[[Space.comCNN]]|archiveaccess-date=24 August 2016|dead-urlquote=no}}</ref><refA name="NYT-20160824">{{Cite news|url=http://www.nytimes.com/2016/08/25/science/earth-planet-proxima-centauri.html|title=One Starnamed Over,Proxima ab Planethas Thatbeen Mightdiscovered Beorbiting Anotherthe Earth|last=Chang|first=Kenneth|date=24closest Auguststar 2016|work=[[Newto Yorkour Times]]|access-date=24 August 2016sun.}}</ref><ref>{{Cite web|url=httphttps://www.telegraphtheguardian.co.ukcom/science/2016/08aug/24/proximaearth-blike-alienplanet-lifefound-couldorbiting-existour-onsuns-secondnearest-earthstar-foundraises-hopes-for-orbiting/life-proxima-b|title=ProximaDiscovery b:of Alien life could exist on 'secondpotentially Earth'-like foundplanet orbitingProxima ourb nearestraises starhopes infor Alpha Centauri systemlife|last=KnaptonDavis|first=SarahNicola|date=24 August 2016|website=[[The Daily Telegraph|The Telegraph]]|publisher=[[Telegraph Media GroupGuardian]]|access-date=24 August 2016}}</ref> Tak lama setelah penemuan, para peneliti menyelidiki potensi layak huni planet Proxima b, dan menyebutkan bahwa planet ini mungkin) adalah planetsebuah luar surya[[eksoplanet]] yang mendukungmengorbit kehidupandalam yang[[zona terdekatlaik dengan lokasi kita.<ref name="nature_paper">{{Cite journalhuni|last=Anglada-Escudé|first=G.|last2=Amado|first2=P.zona J.|last3=Barnes|first3=J.|last4=Berdiñas|first4=Z.layak M.|last5=Butler|first5=R.huni]] P.|last6=Coleman|first6=G.dari A.[[Katai L.merah|last7=debintang lakatai Cueva|first7=I.|last8=Dreizler|first8=S.|last9=Endl|first9=M.|date=25 August 2016|title=A terrestrial planet candidate in a temperate orbit aroundmerah]] [[Proxima Centauri|url=http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf|journal=Nature|language=en|volume=536|issue=7617|pages=437–440|doi=10.1038/nature19106|issn=0028-0836}}</ref>]], Penelitibintang berpikir bahwa kedekatannyaterdekat dengan Bumi menawarkan kesempatan untuk kemungkinan eksplorasi robot di planet dengan proyek Starshot[[Matahari]].<ref name="NYT-20160824">{{Cite news|url=http://www.nytimes.com/2016/08/25/science/earth-planet-proxima-centauri.html|title=One Star Over, a Planet That Might Be Another Earth|last=Chang|first=Kenneth|date=24 August 2016|work=[[New York Times]]|access-date=24 August 2016}}</ref><ref name="CNN article">{{Cite web|url=http://www.cnn.com/2016/08/24/health/proxima-b-centauri-rocky-planet-habitable-zone-neighbor-star/|title=Closest potentially habitable planet to our solar system found|last=Strickland|first=Ashley|date=24 August 2016|website=CNN Health|publisher=|access-date=25 August 2016}}</ref>, atauPlanet setidaknyaini terletak sekitar 4,2 "dalam[[tahun abadcahaya]] mendatang"(1.<ref3 name="CNN[[parsec]], article">{{Cite40 triliun web[[Kilometer|url=http://www.cnn.com/2016/08/24/health/proxima-b-centauri-rocky-planet-habitable-zone-neighbor-star/|title=Closestkm]], potentiallyatau habitable25 planettriliun tomil) ourdari solarBumi systemdi foundkonstelasi [[Centaurus (rasi bintang)|last=Strickland|first=Ashley|date=24Centaurus]]. AugustPlanet ini adalah eksoplanet terdekat 2016dengan [[Tata Surya|website=CNNtata Healthsurya]] serta [[Kelaikhunian planet|publisher=|access-date=25planet Augustlaik 2016}}</ref>huni]] terdekat yang diketahui.
 
Pada bulan Agustus 2016, [[Observatorium Selatan Eropa]] mengumumkan penemuan planet ini.<ref name="nature_paper">{{Cite journal|last=Anglada-Escudé|first=G.|last2=Amado|first2=P. J.|last3=Barnes|first3=J.|last4=Berdiñas|first4=Z. M.|last5=Butler|first5=R. P.|last6=Coleman|first6=G. A. L.|last7=de la Cueva|first7=I.|last8=Dreizler|first8=S.|last9=Endl|first9=M.|date=25 August 2016|title=A terrestrial planet candidate in a temperate orbit around Proxima Centauri|url=http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf|journal=Nature|language=en|volume=536|issue=7617|pages=437–440|doi=10.1038/nature19106|issn=0028-0836}}</ref><ref name="NYT-20160824">{{Cite news|url=http://www.nytimes.com/2016/08/25/science/earth-planet-proxima-centauri.html|title=One Star Over, a Planet That Might Be Another Earth|last=Chang|first=Kenneth|date=24 August 2016|work=[[New York Times]]|access-date=24 August 2016}}</ref><ref name="Pale Red Dot campaign reveals Earth-mass world in orbit around Proxima Centauri">{{Cite web|url=http://www.eso.org/public/news/eso1629/|title=Planet Found in Habitable Zone Around Nearest Star|date=24 August 2016|publisher=[[European Southern Observatory]]|archive-date=24 August 2016|dead-url=no}}</ref><ref name="Space.com">{{Cite web|url=http://www.space.com/33834-discovery-of-planet-proxima-b.html|title="Found! Potentially Earth-Like Planet at Proxima Centauri Is Closest Ever "|date=24 August 2016|publisher=[[Space.com]]|archive-date=24 August 2016|dead-url=no}}</ref><ref>{{Cite web|url=http://www.telegraph.co.uk/science/2016/08/24/proxima-b-alien-life-could-exist-on-second-earth-found-orbiting/|title=Proxima b: Alien life could exist on 'second Earth' found orbiting our nearest star in Alpha Centauri system|last=Knapton|first=Sarah|date=24 August 2016|website=[[The Daily Telegraph|The Telegraph]]|publisher=[[Telegraph Media Group]]|access-date=24 August 2016}}</ref> Tak lama setelah penemuan, para peneliti menyelidiki potensi laik huni planet Proxima b, dan menyebutkan bahwa planet ini mungkin adalah eksoplanet yang mendukung kehidupan yang terdekat dengan lokasi kita.<ref name="nature_paper">{{Cite journal|last=Anglada-Escudé|first=G.|last2=Amado|first2=P. J.|last3=Barnes|first3=J.|last4=Berdiñas|first4=Z. M.|last5=Butler|first5=R. P.|last6=Coleman|first6=G. A. L.|last7=de la Cueva|first7=I.|last8=Dreizler|first8=S.|last9=Endl|first9=M.|date=25 August 2016|title=A terrestrial planet candidate in a temperate orbit around Proxima Centauri|url=http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf|journal=Nature|language=en|volume=536|issue=7617|pages=437–440|doi=10.1038/nature19106|issn=0028-0836}}</ref> Peneliti berpikir bahwa kedekatannya dengan Bumi menawarkan kesempatan untuk kemungkinan eksplorasi robot di planet dengan proyek Starshot,<ref name="NYT-20160824">{{Cite news|url=http://www.nytimes.com/2016/08/25/science/earth-planet-proxima-centauri.html|title=One Star Over, a Planet That Might Be Another Earth|last=Chang|first=Kenneth|date=24 August 2016|work=[[New York Times]]|access-date=24 August 2016}}</ref><ref name="CNN article">{{Cite web|url=http://www.cnn.com/2016/08/24/health/proxima-b-centauri-rocky-planet-habitable-zone-neighbor-star/|title=Closest potentially habitable planet to our solar system found|last=Strickland|first=Ashley|date=24 August 2016|website=CNN Health|publisher=|access-date=25 August 2016}}</ref> atau setidaknya, "dalam abad mendatang".<ref name="CNN article">{{Cite web|url=http://www.cnn.com/2016/08/24/health/proxima-b-centauri-rocky-planet-habitable-zone-neighbor-star/|title=Closest potentially habitable planet to our solar system found|last=Strickland|first=Ashley|date=24 August 2016|website=CNN Health|publisher=|access-date=25 August 2016}}</ref>
Planet ini ditemukan dengan menggunakan metode kecepatan radial (spektroskopi Doppler), di mana pergeseran Doppler periodik dari garis-garis spektrum sebuah bintang menunjukkan sebuah objek yang mengorbit bintang tersebut. Dari metode ini, kecepatan radial bintang induk relatif terhadap Bumi adalah berbeda-beda dengan amplitudo sekitar 2 meter (6.6&#x20;&#x6B;&#x61;&#x6B;&#x69;) per detik.<ref name="nature_paper">{{Cite journal|last=Anglada-Escudé|first=G.|last2=Amado|first2=P. J.|last3=Barnes|first3=J.|last4=Berdiñas|first4=Z. M.|last5=Butler|first5=R. P.|last6=Coleman|first6=G. A. L.|last7=de la Cueva|first7=I.|last8=Dreizler|first8=S.|last9=Endl|first9=M.|date=25 August 2016|title=A terrestrial planet candidate in a temperate orbit around Proxima Centauri|url=http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf|journal=Nature|language=en|volume=536|issue=7617|pages=437–440|doi=10.1038/nature19106|issn=0028-0836}}</ref>▼
 
▲Planet ini ditemukan dengan menggunakan metode kecepatan radial (spektroskopi Doppler), di mana pergeseran Doppler periodik dari garis-garis spektrum sebuah bintang menunjukkan sebuah objek yang mengorbit bintang tersebut. Dari metode ini, kecepatan radial bintang induk relatif terhadap Bumi adalah berbeda-beda dengan amplitudo sekitar 2 meter (6.6&#x20;&#x6B;&#x61;&#x6B;&#x69; kaki) per detik.<ref name="nature_paper">{{Cite journal|last=Anglada-Escudé|first=G.|last2=Amado|first2=P. J.|last3=Barnes|first3=J.|last4=Berdiñas|first4=Z. M.|last5=Butler|first5=R. P.|last6=Coleman|first6=G. A. L.|last7=de la Cueva|first7=I.|last8=Dreizler|first8=S.|last9=Endl|first9=M.|date=25 August 2016|title=A terrestrial planet candidate in a temperate orbit around Proxima Centauri|url=http://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf|journal=Nature|language=en|volume=536|issue=7617|pages=437–440|doi=10.1038/nature19106|issn=0028-0836}}</ref>
 
== Lihat juga ==
Baris 14 ⟶ 41:
== Referensi ==
{{Reflist|30em}}
{{Sky|14|29|42.9487|-|62|40|46.141|4.243}}
[[Kategori:Rasi bintang Centaurus]]▼
 
▲[[Kategori:Rasi bintang CentaurusSentaurus]]
[[Kategori:Proxima Centauri]]
[[Kategori:Eksoplanet]]
[[Kategori:Planet luar surya]]
 
 
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