Lihat sumber Gliese 436

{{Starbox begin
| name = Gliese 436
}}
{{Starbox observe
| epoch       = J2000
| ra          = {{RA|11|42|11.09368}}<ref name=aaa474_2_653/>
| dec         = {{DEC|+26|42|23.6537}}<ref name=aaa474_2_653/>
| appmag_v    = 10.67<ref name=apj617/>
| constell    = [[Leo]]
}}
{{Starbox character
| class       = M2.5&nbsp;V<ref name=apj617/>
| appmag_1_passband = B
| appmag_1    = ~12.20<ref name=aj128_1_463/>
| appmag_2_passband = V
| appmag_2    = ~10.68<ref name=aj128_1_463/>
| appmag_3_passband = J
| appmag_3    = {{nowrap|6.900 ± 0.024}}<ref name=2MASS/>
| appmag_4_passband = H
| appmag_4    = {{nowrap|6.319 ± 0.023}}<ref name=2MASS/>
| appmag_5_passband = K
| appmag_5    = {{nowrap|6.073 ± 0.016}}<ref name=2MASS/>
| b-v         = +1.52<ref name=apj617/>
| u-b         = +1.23<ref name=SIMBAD/>
| variable    = 
}}
{{Starbox astrometry
| radial_v    = +10.0<ref name=gcsrv/>
| prop_mo_ra  = +896.07<ref name=aaa474_2_653/>
| prop_mo_dec = –813.54<ref name=aaa474_2_653/>
| parallax    = 98.61
| p_error     = 2.33
| parallax_footnote = <ref name=aaa474_2_653/>
| absmag_v    = 10.63<ref name=apj617/>
}}
{{Starbox detail
| mass        = {{nowrap|0.41 ± 0.05}}<ref name=apj617/>
| radius      = 0.42<ref name=apjss52/>
| luminosity  = 0.025<ref name=apj617/>
| temperature = 3,318<ref name=apjss52/>
| metal_fe    = {{nowrap|–0.32 ± 0.12}}<ref name=apj653/>
| gravity     = 5.0<ref name=pasp119_851_90/>
| rotational_velocity = 1.0<ref name=apj704_2_975/>
| age_gyr     = 6.5–9.9<ref name=saffe/>
}}
{{Starbox catalog
| names = [[2MASS]]&nbsp;J11421096+2642251, [[katalog Gliese-Jahreiss|GJ]]&nbsp;436, [[katalog Hipparcos|HIP]]&nbsp;57087, [[katalog Luyten Two-Tenths|LTT]]&nbsp;13213, [[katalog Luyten Half-Second|LHS]]&nbsp;310, [[katalog Ross|Ross]]&nbsp;905.<ref name=SIMBAD/>
}}
{{Starbox reference
| Simbad = LHS+310
| EPE = GJ+436
}}
{{Starbox end}}
'''Gliese 436''' adalah sebuah [[katai merah|bintang katai merah]] yang berjarak sekitar {{Convert|33.1|ly|pc|abbr=off|lk=on}} jauhnya di [[rasi bintang]] [[zodiak]] [[Leo]].

Pada 2004, keberadaan sebuah [[eksoplanet]] transit, [[Gliese 436 b|Gliese 436b]], diverifikasikan sebagai planet yang mengorbit bintang tersebut. Pada 2012, keberadaan planet kedua, UCF-1.01,<ref>[http://news.NationalGeographic.com/news/2012/07/120719-new-planet-ucf-spitzer-science-space-stevenson New Planet Found: Molten "Mars" Is "Right Around the Corner"] {{Webarchive|url=https://web.archive.org/web/20150611100929/http://news.nationalgeographic.com/news/2012/07/120719-new-planet-ucf-spitzer-science-space-stevenson/ |date=2015-06-11 }}, Dave Mosher, [[National Geographic Society|National Geographic News]], 19 Juli 2012</ref> juga diverifikasikan.

== Properti ==
Gliese 436 adalah sebuah [[klasifikasi stellar|bintang M2.5V]],<ref name=apj617/> yang artinya bahwa bintang tersebut merupakan [[bintang katai merah]]. Model Stellar memberikan ukuran perkiraan sekitar 42% dari [[radius matahari]]. Model yang sama juga memprediksi bahwa [[atmosfer bintang|atmosfer luar]] memiliki [[temperatur efektif]] 3,318&nbsp;K<ref name=apjss52/>

Gliese 436 lebih tua dari Matahari beberapa miliar tahun.

== Referensi ==
{{reflist|30em|refs=

<ref name=2nd3rdplanet>{{cite journal | display-authors=1 | last1=Stevenson | first1=Kevin B. | last2=Harrington | first2=Joseph | last3=Lust | first3=Nate B. | last4=Lewis | first4=Nikole K. | last5=Montagnier | first5=Guillaume | last6=Moses | first6=Julianne I. | last7=Visscher | first7=Channon | last8=Blecic| first8=Jasmina | last9=Hardy | first9=Ryan A. | last10=Cubillos| first10=Patricio| last11=Campo | first11=Christopher J. | title=Two nearby sub-Earth-sized exoplanet candidates in the GJ 436 system | journal=The Astrophysical Journal |date=July 2012 | arxiv=1207.4245 | bibcode=2012ApJ...755....9S | doi=10.1088/0004-637X/755/1/9}}</ref>

<ref name=aaa474_2_653>{{cite journal | title=Validation of the new Hipparcos reduction | last=van Leeuwen | first=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 |date=November 2007 | pages=653–664 | doi=10.1051/0004-6361:20078357 | bibcode=2007A&A...474..653V |arxiv = 0708.1752 }}</ref>

<ref name=SIMBAD>{{cite web | url=http://simbad.u-strasbg.fr/sim-id.pl?protocol=html&Ident=LHS+310 | title=Query Result:LHS 310  -- High proper-motion Star | work=[[SIMBAD]] Astronomical Object Database | publisher=[[Centre de Données astronomiques de Strasbourg]] | accessdate=2007-11-28 | archive-date=2016-03-04 | archive-url=https://web.archive.org/web/20160304123925/http://simbad.u-strasbg.fr/simbad/sim-id?Ident=LHS+310 | dead-url=no }}</ref>

<ref name=apj617>{{cite journal | display-authors=1 | last1=Butler | first1=R. Paul | last2=Vogt | first2=Steven S. | last3=Marcy | first3=Geoffrey W. | last4=Fischer | first4=Debra A. | last5=Wright | first5=Jason T. | last6=Henry | first6=Gregory W. | last7=Laughlin | first7=Greg | last8=Lissauer | first8=Jack J. | title=A Neptune-Mass Planet Orbiting the Nearby M Dwarf GJ 436 | journal=The [[Astrophysical Journal]] | date=2004 | volume=617 | issue=1 | pages=580–588 | url=http://www.iop.org/EJ/article/0004-637X/617/1/580/60944.html | accessdate=2009-12-26 | doi=10.1086/425173 | bibcode=2004ApJ...617..580B | arxiv=astro-ph/0408587 }}</ref>

<ref name=apjss52>{{cite journal | last=Johnson | first=H. M. | last2=Wright | first2=C. D. | title=Predicted infrared brightness of stars within 25 parsecs of the sun | journal=Astrophysical Journal Supplement Series | date=1983 | volume=53 | pages=643–711 | doi=10.1086/190905 | bibcode=1983ApJS...53..643J }}—see page 673.</ref>

<ref name=apj653>{{cite journal | last=Bean | first=Jacob L. | last2=Benedict | first2=G. Fritz | last3=Endl | first3=Michael | title=Metallicities of M Dwarf Planet Hosts from Spectral Synthesis | journal=The Astrophysical Journal | date=2006 | volume=653 | issue=1 | pages=L65–L68 | bibcode=2006ApJ...653L..65B | doi=10.1086/510527 | type=abstract | arxiv=astro-ph/0611060 }}—for the [[metallicity]], note that <math>\begin{smallmatrix}10^{-0.32} = 0.48\end{smallmatrix}</math> or 48%</ref>

<ref name=saffe>{{cite journal | last=Saffe | first=C. | last2=Gómez | first2=M. | last3=Chavero | first3=C. | title=On the Ages of Exoplanet Host Stars | journal=Astronomy & Astrophysics | date=2006 | arxiv=astro-ph/0510092 | doi=10.1051/0004-6361:20053452 | bibcode=2005A&A...443..609S | volume=443 | issue=2 | pages=609–626 }}</ref>

<ref name=2MASS>{{citation | display-authors=1 | last1=Cutri | first1=R. M. | last2=Skrutskie | first2=M. F. | last3=van Dyk | first3=S. | last4=Beichman | first4=C. A. | last5=Carpenter | first5=J. M. | last6=Chester | first6=T. | last7=Cambresy | first7=L. | last8=Evans | first8=T. | last9=Fowler | first9=J. | last10=Gizis | first10=J. | last11=Howard | first11=E. | last12=Huchra | first12=J. | last13=Jarrett | first13=T. | last14=Kopan | first14=E. L. | last15=Kirkpatrick | first15=J. D. | last16=Light | first16=R. M. | last17=Marsh | first17=K. A. | last18=McCallon | first18=H. | last19=Schneider | first19=S. | last20=Stiening | first20=R. | last21=Sykes | first21=M. | last22=Weinberg | first22=M. | last23=Wheaton | first23=W. A. | last24=Wheelock | first24=S. | last25=Zacarias | first25=N. |date=June 2003 | publisher=NASA/IPAC | title=2MASS All Sky Catalog of point sources | bibcode=2003tmc..book.....C }}</ref>

<ref name=aj128_1_463>{{citation | display-authors=1 | last1=Reid | first1=I. Neill | last2=Cruz | first2=Kelle L. | last3=Allen | first3=Peter | last4=Mungall | first4=F. | last5=Kilkenny | first5=D. | last6=Liebert | first6=James | last7=Hawley | first7=Suzanne L. | last8=Fraser | first8=Oliver J. | last9=Covey | first9=Kevin R. | last10=Lowrance | first10=Patrick | last11=Kirkpatrick | first11=J. Davy | last12=Burgasser | first12=Adam J. | title=Meeting the Cool Neighbors. VIII. A Preliminary 20 Parsec Census from the NLTT Catalogue | journal=The Astronomical Journal | volume=128 | issue=1 | pages=463–483 |date=July 2004 | doi=10.1086/421374 | bibcode=2004AJ....128..463R |arxiv = astro-ph/0404061 }}</ref>

<ref name=gcsrv>{{citation | last=Wilson | first=Ralph Elmer | date=1953 | title=General Catalogue of Stellar Radial Velocities | publisher=Carnegie Institution of Washington | location=Washington | bibcode=1953QB901.W495..... <!-- 1953GCRV..C......0W too -->}}</ref>

<ref name=apj704_2_975>{{citation | display-authors=1 | last1=Jenkins | first1=J. S. | last2=Ramsey | first2=L. W. | last3=Jones | first3=H. R. A. | last4=Pavlenko | first4=Y. | last5=Gallardo | first5=J. | last6=Barnes | first6=J. R. | last7=Pinfield | first7=D. J. | title=Rotational Velocities for M Dwarfs | journal=The Astrophysical Journal | volume=704 | issue=2 | pages=975–988 |date=October 2009 | doi=10.1088/0004-637X/704/2/975 | bibcode=2009ApJ...704..975J |arxiv = 0908.4092 }}</ref>

<ref name=pasp119_851_90>{{citation | display-authors=1 | last1=Maness | first1=H. L. | last2=Marcy | first2=G. W. | last3=Ford | first3=E. B. | last4=Hauschildt | first4=P. H. | last5=Shreve | first5=A. T. | last6=Basri | first6=G. B. | last7=Butler | first7=R. P. | last8=Vogt | first8=S. S. | title=The M Dwarf GJ 436 and its Neptune-Mass Planet | journal=The Publications of the Astronomical Society of the Pacific | volume=119 | issue=851 | pages=90–101 |date=January 2007 | doi=10.1086/510689 | bibcode=2007PASP..119...90M |arxiv = astro-ph/0608260 }}</ref>

<ref name=sherrod_koed2003>{{citation | first1=P. Clay | last1=Sherrod | first2=Thomas L. | last2=Koed | title=A Complete Manual of Amateur Astronomy: Tools and Techniques for Astronomical Observations | series=Astronomy Series | publisher=Courier Dover Publications | date=2003 | isbn=0486428206 | page=9 | url=http://books.google.com/books?id=4zjv84hHNPcC&pg=PA9 | accessdate=2015-06-13 | archive-date=2023-08-06 | archive-url=https://web.archive.org/web/20230806143504/https://books.google.com/books?id=4zjv84hHNPcC&pg=PA9&hl=en | dead-url=no }}</ref>

<ref name=csiro>{{citation | title=The Colour of Stars | date=December 21, 2004 | work=Australia Telescope, Outreach and Education | publisher=Commonwealth Scientific and Industrial Research Organisation | url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html | accessdate=2012-01-16 | archive-date=2012-03-10 | archive-url=https://www.webcitation.org/6630AbtJZ?url=http://outreach.atnf.csiro.au/education/senior/astrophysics/photometry_colour.html | dead-url=yes }}</ref>

}}

== Pranala luar ==
* {{cite web
 | url=http://solstation.com/stars2/gl436.htm
 | title=Gliese 436 / AC+27 28217
 | publisher=Sol Company
 | accessdate=2007-11-28
 | archive-date=2015-09-13
 | archive-url=https://web.archive.org/web/20150913055200/http://solstation.com/stars2/gl436.htm
 | dead-url=no
 }}
* {{cite web
| url=http://media4.obspm.fr/exoplanets/base/etoile.php?nom=GJ+436
| title=GJ 436
| publisher=l’Observatoire de Paris
| accessdate=2009-05-20
| archive-date=2012-04-01
| archive-url=https://web.archive.org/web/20120401193040/http://media4.obspm.fr/exoplanets/base/etoile.php?nom=GJ+436
| dead-url=yes
}}
* {{cite web
| url=http://news.nationalgeographic.com/news/2012/07/120719-new-planet-ucf-spitzer-science-space-stevenson
| title=New Planet Found: Molten "Mars" Is "Right Around the Corner"
| publisher=National Geographic
| accessdate=2012-07-20
| archive-date=2015-06-11
| archive-url=https://web.archive.org/web/20150611100929/http://news.nationalgeographic.com/news/2012/07/120719-new-planet-ucf-spitzer-science-space-stevenson/
| dead-url=no
}}

{{Sky|11|42|11.0941|+|26|42|23.652|33.4}}
{{Sistem bintang berjarak 30 – 35 tahun cahaya}}
{{Bintang Leo}}

[[Kategori:Leo (rasi bintang)]]
[[Kategori:Sistem planetarium]]