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| url=http://var2.astro.cz/ETD/etd.php?STARNAME=WASP-18&PLANET=b |
| url=http://var2.astro.cz/ETD/etd.php?STARNAME=WASP-18&PLANET=b |
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| accessdate=2009-08-29 |
| accessdate=2009-08-29 |
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}}</ref> |
}}</ref> |
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| RA = {{RA|01|37|25.0335}}<ref name="Gaia DR2"/> |
| RA = {{RA|01|37|25.0335}}<ref name="Gaia DR2"/> |
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| dist_pc = {{val|123.9|0.4}}<ref name="Gaia DR2"/> |
| dist_pc = {{val|123.9|0.4}}<ref name="Gaia DR2"/> |
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| class = F6<ref name="EPE" /> |
| class = F6<ref name="EPE" /> |
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| mass = 1.25<ref>{{Cite web |url=http://exep.jpl.nasa.gov/atlas/atlas_profile.cfm?Star=474 |title=PlanetQuest: WASP-18 b |access-date=2018-07-19 |
| mass = 1.25<ref>{{Cite web |url=http://exep.jpl.nasa.gov/atlas/atlas_profile.cfm?Star=474 |title=PlanetQuest: WASP-18 b |access-date=2018-07-19 }}</ref> |
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}} |
}} |
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{{Planetbox orbit |
{{Planetbox orbit |
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| semimajor = 0.02026 ± 0.00068<ref name="EPE">{{cite web |url=http://exoplanet.eu/planet.php?p1=WASP-18&p2=b |title=Notes for planet WASP-18b |work=The Extrasolar Planets Encyclopaedia |accessdate=2009-09-15 |
| semimajor = 0.02026 ± 0.00068<ref name="EPE">{{cite web |url=http://exoplanet.eu/planet.php?p1=WASP-18&p2=b |title=Notes for planet WASP-18b |work=The Extrasolar Planets Encyclopaedia |accessdate=2009-09-15 }}</ref> |
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| periastron = 0.02007 |
| periastron = 0.02007 |
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| apastron = 0.02045 |
| apastron = 0.02045 |
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| pmid = 19713920 |
| pmid = 19713920 |
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| bibcode = 2009Natur.460.1086H |
| bibcode = 2009Natur.460.1086H |
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}}</ref>。接下來十年內對WASP-18b的觀測可以讓天文学家計算其軌道衰減率<ref name="Thompson">{{cite web |
}}</ref>。接下來十年內對WASP-18b的觀測可以讓天文学家計算其軌道衰減率<ref name="Thompson">{{cite web |
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| last = Thompson |
| last = Thompson |
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| doi = |
| doi = |
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| accessdate = 2009-08-28 |
| accessdate = 2009-08-28 |
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}}</ref>。 |
}}</ref>。 |
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}}</ref>。 |
}}</ref>。 |
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[[File:PIA22087-Exoplanet-Wasp18b-COinStratosphere-20171129.jpg|thumb|center|300px|<center>天文学家在WASP-18b的[[平流層]]中发现大量[[一氧化碳]]示意圖<ref name="NASA-20171129a">{{cite web |last1=Landau |first1=Elizabeth |last2=Zubritsky |first2=Elizabeth |title=Exoplanet Has Smothering Stratosphere Without Water |url=https://www.jpl.nasa.gov/news/news.php?feature=7012 |date=29 November 2017 |work=[[美国国家航空航天局|NASA]] |accessdate=29 November 2017 |
[[File:PIA22087-Exoplanet-Wasp18b-COinStratosphere-20171129.jpg|thumb|center|300px|<center>天文学家在WASP-18b的[[平流層]]中发现大量[[一氧化碳]]示意圖<ref name="NASA-20171129a">{{cite web |last1=Landau |first1=Elizabeth |last2=Zubritsky |first2=Elizabeth |title=Exoplanet Has Smothering Stratosphere Without Water |url=https://www.jpl.nasa.gov/news/news.php?feature=7012 |date=29 November 2017 |work=[[美国国家航空航天局|NASA]] |accessdate=29 November 2017 }}</ref>。 |
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</center>]] |
</center>]] |
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