编辑“︁OGLE-TR-56”︁

{{Starbox begin
| name = OGLE-TR-56
}}
{{Starbox observe
| epoch = [[J2000.0]]
| constell = [[人馬座]]
| ra = {{RA|17|56|35.51}}<ref name="SIMBAD" />
| dec = {{DEC|–29|32|21.2}}<ref name="SIMBAD" />
| appmag_v = 16.560<<ref name="SIMBAD" />
}}
{{Starbox character
| class = G<ref name=epe />
| variable=EP<ref name="gcvs">{{cite web|publisher=[[斯特恩伯格天文研究所|Sternberg Astronomical Institute]]|title=General Catalogue of Variable Stars Query results|url=http://www.sai.msu.su/groups/cluster/gcvs/cgi-bin/search.cgi?search=+V5157+Sgr+|work=Sternberg Astronomical Institute, Moscow, Russia|accessdate=2009-04-30|archive-date=2011-07-24|archive-url=https://web.archive.org/web/20110724215630/http://www.sai.msu.su/groups/cluster/gcvs/cgi-bin/search.cgi?search=+V5157+Sgr+|dead-url=no}}</ref>
}}
{{Starbox astrometry
| dist_ly = ~5,000
| dist_pc = ~1,500
}}
{{Starbox detail
| mass = 1.17 ± 0.04<ref name=sss />
| radius = 1.32 ± 0.06<ref name=sss />
}}
{{Starbox catalog
| names = [[Variable star designation|V5157 Sagittarii]], SBC9 2452  
}}
{{Starbox reference
| Simbad = OGLE-TR-56
| EPE = OGLE-TR-56
}}
{{Starbox end}}
'''OGLE-TR-56'''是一顆位於[[人馬座]]的[[恆星]]<ref name="SIMBAD">{{cite web
 | url=http://simbad.u-strasbg.fr/simbad/sim-id?Ident=OGLE-TR-56
 | title=SIMBAD query result: V* V5157 Sgr  -- Star showing eclipses by its planet
 | publisher=Centre de Données astronomiques de Strasbourg
 | accessdate=2009-04-30
 | archive-date=2016-03-03
 | archive-url=https://web.archive.org/web/20160303223709/http://simbad.u-strasbg.fr/simbad/sim-id?Ident=OGLE-TR-56
 | dead-url=no
 }}</ref>，於2003年證實有一顆[[日外行星]]環繞其運行。該恆星的行星因為有凌星現象，因此在行星發現相關論文中被歸類為食變星<ref name="OGLE" />。

2002年，位於[[波蘭]]的[[光學重力透鏡實驗]]小組（OGLE）以凌日觀測的方法找到這顆恆星的行星，編號為'''OGLE-TR-56b'''，並於2003年以多普勒方式確證<ref name="OGLE">{{cite journal
 |author       = Udalski et al.
 |url          = http://acta.astrouw.edu.pl/Vol52/n2/a_52_2_1.html
 |title        = The Optical Gravitational Lensing Experiment. Search for Planetary and Low-Luminosity Object Transits in the Galactic Disk. Results of 2001 Campaign - Supplement
 |journal      = [[Acta Astronomica]]
 |volume       = 52
 |year         = 2002
 |pages        = 115–128
 |arxiv        = astro-ph/0207133
 |bibcode      = 2002AcA....52..115U
 |last2        = Zebrun
 |first2       = K.
 |last3        = Szymanski
 |first3       = M.
 |last4        = Kubiak
 |first4       = M.
 |last5        = Soszynski
 |first5       = I.
 |last6        = Szewczyk
 |first6       = O.
 |last7        = Wyrzykowski
 |first7       = L.
 |last8        = Pietrzynski
 |first8       = G.
 |access-date  = 2012-11-17
 |archive-date = 2015-11-07
 |archive-url  = https://web.archive.org/web/20151107144418/http://acta.astrouw.edu.pl/Vol52/n2/a_52_2_1.html
 |dead-url     = no
}}</ref>。這顆行星屬於[[熱木星]]，質量比[[木星]]大一點，為木星的1.29 ± 0.12倍，其公轉週期為1.21天，截至2006年，這顆行星是所有被人類發現的日外行星當中，公轉週期最短的行星<ref name="Konacki">{{cite journal 
| url=http://www.iop.org/EJ/article/0004-637X/597/2/1076/58497.html
| author=Konacki ''et al.''
| title=High-Resolution Spectroscopic Follow-up of OGLE Planetary Transit Candidates in the Galactic Bulge: Two Possible Jupiter-Mass Planets and Two Blends
| journal=The [[Astrophysical Journal]]
| volume=597 
| year=2003 
| pages=1076–1091
| doi=10.1086/378561 
| last2=Torres 
| first2=Guillermo 
| last3=Sasselov 
| first3=Dimitar D. 
| last4=Jha 
| first4=Saurabh
| bibcode=2003ApJ...597.1076K
| issue=2|arxiv = astro-ph/0306542 }}</ref>。

{{OrbitboxPlanet begin}}
{{OrbitboxPlanet
| exoplanet = [[OGLE-TR-56 b|b]]
| mass = 1.29 ± 0.12<ref name=sss>The "666" collaboration on OGLE transits. I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT  deconvolution photometry, F. Pont et al., ''Astronomy and Astrophysics'' '''465''', #3 (April 2007), pp. 1069–1074, {{Bibcode|2007A&A...465.1069P}}, {{doi|10.1051/0004-6361:20066645}}.</ref>
| period = 1.211909 ± 0.000001<ref name=sss />
| semimajor = 0.0225 ± 0.0004<ref name=epe>[http://exoplanet.eu/planet.php?p1=OGLE-TR-56&p2=b Planet : OGLE-TR-56 b] {{Wayback|url=http://exoplanet.eu/planet.php?p1=OGLE-TR-56&p2=b |date=20120602005224 }}, ''Extrasolar Planets Encyclopaedia''.  Accessed on line August 22, 2008.</ref>
| eccentricity = 0
}}
{{Orbitbox end}}

==參考資料==
{{reflist}}

== 外部連結 ==
*[https://web.archive.org/web/20070905035618/http://vo.obspm.fr/exoplanetes/encyclo/planet.php?p1=OGLE-TR-56&p2=b Planet: OGLE-TR-56b]
* {{cite journal | url=http://www.nature.com/nature/journal/v421/n6922/abs/nature01379.html | author=Konacki et al. | title=An extrasolar planet that transits the disk of its parent star | journal=[[Nature (journal)|Nature]] | volume=421 | year=2003 | issue=6922 | pages=507–509 | pmid=12556885 | doi=10.1038/nature01379 | last2=Torres | first2=Guillermo | last3=Jha | first3=Saurabh | last4=Sasselov | first4=Dimitar D. | bibcode=2003Natur.421..507K | access-date=2012-11-17 | archive-date=2012-10-24 | archive-url=https://web.archive.org/web/20121024140548/http://www.nature.com/nature/journal/v421/n6922/abs/nature01379.html | dead-url=no }}([http://xxx.lanl.gov/abs/astro-ph/0301052v1 web Preprint])
* {{cite web | url=http://exoplanet.eu/star.php?st=OGLE-TR-56 | title=Notes for star OGLE-TR-56 | work=The Extrasolar Planets Encyclopaedia | accessdate=2008-08-22 | archive-date=2008-08-03 | archive-url=https://web.archive.org/web/20080803213504/http://exoplanet.eu/star.php?st=OGLE-TR-56 | dead-url=no }}
* {{cite web | url=http://www.extrasolar.net/planettour.asp?StarCatId=normal&StarId=200 | title=OGLE-TR-56 | work=Extrasolar Visions | accessdate=2008-08-22 | deadurl=yes | archiveurl=https://web.archive.org/web/20110605074754/http://www.extrasolar.net/planettour.asp?StarCatId=normal&StarId=200 | archivedate=2011-06-05 }}

[[Category:人马座]]
[[Category:G型主序星]]
[[Category:太陽系外行星]]
[[Category:行星凌變星]]