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{{Infobox planet
{{Planetbox begin
| namaname = Gliese 581 g581g
| image = Exoplanet Comparison Gliese 581 g.png
| caption = Perbandingan ukuran Gliese 581g dengan Bumi dan Neptunus.<br/>(Berdasarkan [[:Berkas:Exoplanet Comparison Gliese 581 g.png#Ringkasan|komposisi bermodel]] hipotetis terpilih)
|<!-- speedDISCOVERY =-->▼
| discoverersdiscoverer = [[Steven S. Vogt]] et al.<ref name="Vogt 2010"/>▼
| discovery_site = [[Observatorium W. M. Keck|Observatorium Keck = [[ObservatoriumKeck]], [[Hawaii]]<ref name="Smith 2010"/><ref name="Overbye 2012"/><ref name="Alleyne 2010"/>▼
| discovery_datediscovered = 29 September 2010<ref name="Vogt 2010"/><ref name="Sanders 2010"/>▼
| discovery_method = [[Spektroskopi Doppler|Kecepatan radial]]<ref name="Vogt 2010"/>▼
<!-- DESIGNATIONS -->
|<!-- planetORBITAL =--> g▼
| epoch = [[JulianHari dayJulian|JD]] 2451409.,762<ref name="Vogt 2010"/>▼
| starapsis = Gl+581astron▼
| semi-ampsemimajor = 1.29 ± = {{convert|0.1913|AU|km|abbr=on}}<ref name="Vogt 20102012"/>▼
| eccentricity = 0<ref name="Vogt 2010"/>▼
| minimum_mass_earthperiod = 2.232<ref name = "Vogt 2012"/> [[day|d]]▼
| mean_anomaly = 271 ± 48<ref name="Vogt 2010"/>▼
| semi-amplitude = 1,29 ± 0,19<ref name="Vogt 2010"/>
| star = [[Gliese 581]]<ref name="Vogt 2010"/><ref name="Quenqua 2014"/>
<!-- PHYS CHARS -->
| temperature single_temperature = {{convert|242 |K|C F}} tos.d. {{convert|261|K|C F}}<ref name="Stephens 2010"/>▼
<!-- ATMOSPHERE -->
<!-- NOTES -->
|alt_names=Zarmina, Zarmina's World
}}
{{Planetbox image
|image= GJ581orbits.svg
|caption= Orbit sistem planet [[Gliese 581]] dengan orbit lingkaran, tidak termasuk planet terluar''f''.
}}▼
{{Planetbox star
| star = [[Gliese 581]]
| constell = [[Libra]]
| RA = {{RA|15|19|26}}
| DEC = {{DEC|−07|43|20}}
| app_mag = 10.55
| dist_ly = 20.3 ± 0.3
| dist_pc = 6.2 ± 0.1
| class = M3V
| mass = 0.31
| radius = 0.29
| temperature = 3480 ± 48
| metallicity = −0.33 ± 0.12
| age = 7 – 11
}}
{{Planetbox orbit
| period = 36.6<ref name="Vogt">{{Cite journal| last = Vogt | first = Steven S. |coauthors = [[R. Paul Butler|Butler, R. Paul]]; Rivera, Eugenio J.; Haghighipour, Nader; Henry, Gregory W.; Williamson, Michael H. | title = The Lick-Carnegie Exoplanet Survey: A 3.1 M_Earth Planet in the Habitable Zone of the Nearby M3V Star Gliese 581| journal = accepted by the [[Astrophysical Journal]] |date = 2010-09-29| url = http://arxiv.org/abs/1009.5733 | accessdate = 2010-09-29}}</ref>▼
| period_year =
| period_hour =
| semimajor = 0.146<ref name="Vogt"/>
| semimajor_gm =
| semimajor_mas =
▲| eccentricity = 0<ref name="Vogt 2010"/>
▲| speed =
▲| semi-amp = 1.29 ± 0.19<ref name="Vogt 2010"/>
| inclination =
▲| mean_anomaly = 271 ± 48<ref name="Vogt 2010"/>
▲| epoch = [[Julian day|JD]] 2451409.762<ref name="Vogt 2010"/>
}}
{{Planetbox character
▲| minimum_mass_earth = 2.2<ref name="Vogt 2012"/>
▲| temperature = {{convert|242 |K|C F}} to {{convert|261|K|C F}}<ref name="Stephens 2010"/>
}}
{{Planetbox discovery
▲| discovery_date = 29 September 2010<ref name="Vogt 2010"/><ref name="Sanders 2010"/>
▲| discoverers = [[Steven S. Vogt]] et al.<ref name="Vogt 2010"/>
▲| discovery_method = [[Kecepatan radial]]<ref name="Vogt 2010"/>
▲| discovery_site = [[Observatorium W. M. Keck|Observatorium Keck]], [[Hawaii]]<ref name="Smith 2010"/><ref name="Overbye 2012"/><ref name="Alleyne 2010"/>
| discovery_status = Belum dikonfirmasi<ref name="Extrasolar Planets Encyclopaedia 2010"/>
}}
{{Planetbox reference
▲| star = Gl+581
▲| planet = g
}}
{{Planetbox end}}
 
'''Gliese 581 g''' atau '''Gl 581 g''', adalah [[planet luar suryaeksoplanet]] yang mengorbit bintang [[katai merah]] [[Gliese 581]], berjarak 20,5 [[tahun cahaya]]<ref>Sekitar 193 triliun kilometer</ref> dari [[bumi]] pada [[rasi]] [[Libra]]. Gliese 581 g merupakan planet keenam yang ditemukan pada sistem planet Gliese 581dan planet keempat yang terdekat dengan bintang tersebut. Planet ini ditemukan oleh Survei eksoplanet Lick-Carnegie setelah pengamatan selama satu dekade. Penemuan Gliese 581 g diumumkan pada akhir bulan September 2010, dan dipercaya sebagai planet yang hampir mirip dengan bumi serta calon planet luar suryaeksoplanet dengan potensi terbesar untuk menemukan adanya kehidupan. Deteksi Gliese 581 g pada periode waktu yang singkat menyebabkan astronom mempercayai proporsi bintang dengan planet yang dihuni kemungkinan lebih dari 10%.<ref name = "Vogt"/>
 
[[Steven Vogt]], astronom yang menemukan planet ini, secara informal menamakan planet ini '''Zarmina''' yang merupakan nama istrinya.
 
== Referensi ==
{{Reflist}}|refs=
 
<ref name="Alleyne 2010">{{cite news|url=https://www.telegraph.co.uk/science/space/8033124/Gliese-581g-the-most-Earth-like-planet-yet-discovered.html|title=Gliese 581g the most Earth like planet yet discovered|last=Alleyne|first=Richard|date=September 29, 2010|work=[[The Daily Telegraph]]|location=London|archive-url=https://web.archive.org/web/20101002104629/http://www.telegraph.co.uk/science/space/8033124/Gliese-581g-the-most-Earth-like-planet-yet-discovered.html|archive-date=October 2, 2010|dead-url=yes|accessdate=September 30, 2010}}</ref>
 
<ref name="Extrasolar Planets Encyclopaedia 2010">{{cite web|title=Star: Gliese 581 |url=http://exoplanet.eu/star.php?st=Gl+581 |work=[[Extrasolar Planets Encyclopaedia]] |accessdate=October 11, 2010 |quote=Mass 0.31 M<sub>Sun</sub>, Age {{val|8|+3|-1}} Gyr |deadurl=yes |archiveurl=https://web.archive.org/web/20120505101639/http://exoplanet.eu/star.php?st=Gl%20581 |archivedate=May 5, 2012 |df= }}</ref>
 
<ref name="Overbye 2012">{{Cite news|url=https://www.nytimes.com/2012/08/21/science/space/just-right-or-nonexistent-dispute-over-goldilocks-planet-gliese-581g.html|title=Just Right, or Nonexistent? Dispute Over ‘Goldilocks’ Planet Gliese 581G|last=Overbye|first=Dennis|date=August 20, 2012|newspaper=The New York Times|issn=0362-4331|access-date=January 7, 2017|archive-date=2023-04-09|archive-url=https://web.archive.org/web/20230409195354/https://www.nytimes.com/2012/08/21/science/space/just-right-or-nonexistent-dispute-over-goldilocks-planet-gliese-581g.html|dead-url=no}}</ref>
 
<ref name="Sanders 2010">{{cite web|last1=Sanders|first1=Laura|title=A little wobble spurs hope for finding life on distant worlds: extrasolar planet is in the right location to be habitable.|url=https://www.thefreelibrary.com/A+little+wobble+spurs+hope+for+finding+life+on+distant+worlds%3A+...-a0241277867|accessdate=January 21, 2017|archive-date=2022-02-18|archive-url=https://web.archive.org/web/20220218051735/https://www.thefreelibrary.com/A+little+wobble+spurs+hope+for+finding+life+on+distant+worlds%3A+...-a0241277867|dead-url=no}}</ref>
 
<ref name="Smith 2010">{{cite web|last1=Smith|first1=Yvette|title=NASA and NSF-Funded Research Finds First Potentially Habitable Exoplanet|url=http://www.nasa.gov/topics/universe/features/gliese_581_feature.html|publisher=[[NASA]]|accessdate=May 27, 2016|date=September 29, 2010|archive-date=2013-03-10|archive-url=https://web.archive.org/web/20130310091735/http://www.nasa.gov/topics/universe/features/gliese_581_feature.html|dead-url=no}}</ref>
 
<ref name="Stephens 2010">{{cite web |last=Stephens |first=Tim |date=September 29, 2010 |url=http://news.ucsc.edu/2010/09/planet.html |title=Newly discovered planet may be first truly habitable exoplanet |work=University News & Events |publisher=[[University of California, Santa Cruz]] |access-date=2018-05-18 |archive-date=2013-11-03 |archive-url=https://web.archive.org/web/20131103053732/http://news.ucsc.edu/2010/09/planet.html |dead-url=no }}</ref>
 
▲| period = 36.6<ref name="Vogt 2010">{{Citecite journal | lastlast1 = Vogt | firstfirst1 = Steven S. | last2 = Butler |coauthors first2 = [[R. Paul Butler|Butler, R.last3 Paul]];= Rivera, | first3 = Eugenio J.; | last4 = Haghighipour, | first4 = Nader; | last5 = Henry, | first5 = Gregory W.; | last6 = Williamson, | first6 = Michael H. | title = The Lick-Carnegie Exoplanet Survey: A 3.1 M_Earth Planet in the Habitable Zone of the Nearby M3V Star Gliese 581 | journaldate = acceptedSeptember by29, the2010 [[Astrophysical| Journal]]arxiv = 1009.5733 |date class = 2010astro-09-29|ph.EP url| doi= http:10.1088/0004-637X/arxiv.org723/abs1/1009954 | bibcode=2010ApJ.5733..723..954V | accessdatevolume=723 | journal=The 2010-09-29Astrophysical Journal | pages=954–965}}</ref>
 
<ref name="Vogt 2012">{{cite journal | last1 = Vogt | first1 = Steven S. | last2 = Butler | first2 = R. Paul | last3 = Haghighipour | first3 = Nader | title = GJ 581 update: Additional Evidence for a Super-Earth in the Habitable Zone | date = July 18, 2012 | arxiv = 1207.4515 | class = astro-ph.EP | doi=10.1002/asna.201211707 | bibcode=2012AN....333..561V | volume=333 | journal=Astronomische Nachrichten | pages=561–575}}</ref>
 
▲}}
 
== Pranala luar ==
{{Commons cat|Gliese 581|Star system Gliese 581}}
* {{cite web|author = [[National Science Foundation]]|url = http://www.nsf.gov/news/news_videos.jsp?cntn_id=117765&media_id=68454&org=NSF|title = Steven Vogt and Paul Butler lead a team that discovered the first potentially habitable exoplanet|access-date = 2010-10-03|archive-date = 2021-03-27|archive-url = https://web.archive.org/web/20210327023021/http://www.nsf.gov/news/news_videos.jsp?cntn_id=117765&media_id=68454&org=NSF|dead-url = no}}
* {{cite web |date=2010-09-29 |url=http://www.nasa.gov/home/hqnews/2010/sep/HQ_10-237_Exoplanet_Findings.html |title=NASA and NSF-Funded Research Finds First Potentially Habitable Exoplanet |work=Release 10-237 |publisher=[[NASA]] |access-date=2010-10-03 |archive-date=2012-08-25 |archive-url=https://web.archive.org/web/20120825160947/http://www.nasa.gov/home/hqnews/2010/sep/HQ_10-237_Exoplanet_Findings.html |dead-url=no }}
 
{{Sky|15|19|27|-|07|43|19|20.2}}
 
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{{DEFAULTSORT:Gliese 581 G}}
 
[[Kategori:Rasi bintang Libra]]
[[Kategori:Eksoplanet]]
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