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{{Infobox planet
'''Gliese 581 e''' ({{pron-en|ˈɡliːzə}}) adalah [[planet luar surya]] keempat yang ditemukan di sekitar [[Gliese 581]], berjarak sekitar 20 tahun cahaya di rasi bintang [[Libra]]. Planet ini ditemukan oleh tim [[Michel Mayor]] dari [[Observatorium Jenewa]] di [[Swiss]]. Penemuan planet ini diumumkan pada tanggal [[21 April]] [[2009]]. Planet ini minimal mempunyai massa sebesar 1,9 [[massa Bumi]] sehingga merupakan planet luar surya yang massanya paling mendekati [[Bumi]] (per 23 April 2009). Meskipun begitu, suhu udara yang tinggi, ukuran yang kecil, dan radiasi yang kuat dari bintang induknya membuatnya kemungkinan besar tidak memiliki [[atmosfer]].<ref name="mayor">{{cite journal | url=http://obswww.unige.ch/~udry/Gl581_preprint.pdf|author=Mayor et al.|title=The HARPS search for southern extra-solar planets,XVIII. An Earth-mass planet in the GJ 581 planetary system |journal = [[Astronomy and Astrophysics]] |year=2009 }}</ref><ref name="bbc">{{cite web|last=Rincon|first=Paul|coauthors=Amos, Jonathan|url=http://news.bbc.co.uk/1/hi/sci/tech/8008683.stm|title=Lightest exoplanet is discovered|publisher=[[BBC]]|date=2009-04-21|accessdate=2009-04-21}}</ref><ref>{{cite web|url=http://www.latimes.com/news/science/la-sci-planet22-2009apr22,0,5993692.story|title=Two planets identified as most similar to Earth|date=2009-04-22|work=[[Los Angeles Times]]|accessdate=2009-04-22}}</ref><ref>{{cite web|url=http://news.nationalgeographic.com/news/2009/04/090421-most-earthlike-planet.html|title=Most Earthlike Planet Yet Found May Have Liquid Oceans|date=2009-04-21|work=[[National Geographic]]|accessdate=2009-04-22}}</ref>▼
| name = Gliese 581e
| image = Exoplanet Comparison Gliese 581 e.png
| caption = Perbandingan ukuran Gliese 581e dengan Bumi.<br/>(Berdasarkan [[:Berkas:Exoplanet Comparison Gliese 581 e.png#Ringkasan|komposisi bermodel]] hipotetis terpilih)
<!-- DISCOVERY -->
| discoverer = [[Michel Mayor|Mayor]] et al.
| discovery_site = [[Observatorium La Silla]], [[Chile]]
| discovered = 21 April 2009
| discovery_method = [[Kecepatan radial]]
<!-- DESIGNATIONS -->
<!-- ORBITAL -->
| apsis = astron
| semimajor = {{convert|0.02815|±|0.00006|AU|km|abbr=on}}<ref name="robertson2014"/>
| eccentricity = 0,00 ± 0,06<ref name="robertson2014"/>
| period = 3,1490 ± 0,0002<ref name="robertson2014">{{cite journal|last=Robertson |first=Paul |last2=Mahadevan |first2=Suvrath |last3=Endl |first3=Michael |last4=Roy |first4=Arpita |title=Stellar activity masquerading as planets in the habitable zone of the M dwarf Gliese 581 |journal=[[Science (journal)|Science]] |date=3 July 2014 |doi=10.1126/science.1253253 |arxiv=1407.1049 |bibcode=2014Sci...345..440R |volume=345 |pages=440–444 |pmid=24993348}}</ref> [[day|d]]
| time_periastron = 2454752,33 ± 0,05<ref name="robertson2014"/>
| semi-amplitude = 1,7 ± 0,2<ref name="robertson2014"/>
| star = [[Gliese 581]]
<!-- PHYS CHARS -->
<!-- ATMOSPHERE -->
<!-- NOTES -->
}}
▲'''Gliese 581 e''' ({{pron-en|ˈɡliːzə}}) adalah [[
== Referensi ==
Baris 6 ⟶ 29:
== Pranala luar ==
{{commonscat|Gliese 581}}
* {{en}} [http://www.eso.org/public/outreach/press-rel/pr-2009/pr-15-09.html Lightest exoplanet yet discovered] {{Webarchive|url=https://web.archive.org/web/20090806065835/http://www.eso.org/public/outreach/press-rel/pr-2009/pr-15-09.html |date=2009-08-06 }} (Rilis pers [[ESO]])
* {{id}} [http://www.republika.co.id/koran/14/45804/Bila_Bumi_Punya_Saudara_Kembar Bila Bumi Punya Saudara Kembar] {{Webarchive|url=https://web.archive.org/web/20090429083857/http://www.republika.co.id/koran/14/45804/Bila_Bumi_Punya_Saudara_Kembar |date=2009-04-29 }}, ''[[Republika]]'', 23 April 2009
* {{en}} [http://news.yahoo.com/s/ap/20090421/ap_on_sc/eu_britain_new_planet Scientists discover a nearly Earth-sized planet] {{Webarchive|url=https://web.archive.org/web/20090429221450/http://news.yahoo.com/s/ap/20090421/ap_on_sc/eu_britain_new_planet |date=2009-04-29 }}
{{Sky|15|19|26|-|07|43|20|20.3}}
[[Kategori:Planet luar surya]]
{{astronomi-stub}}▼
▲[[Kategori:Planet ekstrasurya]]
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