View source for WASP-5b

{{Short description|Jovian size planet orbiting WASP-5}}
{{Infobox planet
| name                     = WASP-5b
| image                    = Exoplanet Comparison WASP-5 b.png
| caption                  = Size comparison of WASP-5b with Jupiter.
<!-- DISCOVERY           -->
| discovery_ref            = <ref name="disc"/>
| discoverer               = Anderson et al. ([[SuperWASP]])
| discovery_site           = [[SAAO]]
| discovered               = October 31, 2007
| discovery_method         = Transit
<!-- DESIGNATIONS        -->
<!-- ORBITAL             -->
| orbit_ref                = <ref name="Bonomo2017"/>
| apsis                    = astron
| semimajor                = {{convert|0.02739|±|0.00039|AU|km|abbr=on}}
| eccentricity             = <0.012
| period                   = {{val|1.62842953|(52)|ul=d}}
| inclination              = {{val|85.8|1.1|u=deg}}
| semi-amplitude           = {{val|268.2|4.6|4.2|ul=m/s}}
| star                     = [[WASP-5]]
<!-- PHYS CHARS          -->
| physical_ref             = <ref name="Bonomo2017"/>
| mean_radius              = {{val|1.175|0.056|ul=Jupiter radius}}
| mass                     = {{val|1.590|0.053|0.052|ul=Jupiter mass}}
| density                  = {{val|1.21|0.20|0.16|ul=g/cm3}}
| surface_grav             = {{val|28.6|ul=m/s2}}<br>2.9 [[g-force|g]]<!-- calculated -->
| single_temperature       = {{val|2000|90|ul=K}} ({{convert|2000|K|C F|disp=out}})<ref name=Wong2020/>
<!-- ATMOSPHERE          -->
<!-- NOTES               -->
}}
'''WASP-5b''' is an [[exoplanet]] orbiting the [[star]] [[WASP-5]] located approximately 1000 [[light-year]]s away in the [[constellation]] [[Phoenix (constellation)|Phoenix]]. The planet's mass and radius indicate that it is a [[gas giant]] with a similar bulk composition to [[Jupiter]]. The small orbital distance of WASP-5 b around its star means it belongs to a class of planets known as [[hot Jupiters]]. The [[planetary equilibrium temperature]] would be 1717 [[Kelvin|K]],<ref name="disc"/> but the measured dayside temperature is higher, with a 2015 study finding 2500{{±|100}} K<ref name=Zhou2015/> and a 2020 study finding 2000{{±|90}} [[Kelvin|K]].<ref name=Wong2020/>

A study in 2012, utilizing the [[Rossiter–McLaughlin effect]], determined that the planetary orbit is probably aligned with the equatorial plane of the star, with misalignment equal to 12.1{{±|8|10}}°.<ref name="Albrecht2012"/>

==See also==
* [[SuperWASP]]
* [[WASP-4b]]
* [[WASP-3b]]

==References==
{{reflist|refs=

<ref name="disc">{{cite journal | last1=Anderson |first1=D.R. | title=WASP-5b: a dense, very hot Jupiter transiting a 12th-mag Southern-hemisphere star | journal=Monthly Notices of the Royal Astronomical Society: Letters | volume=387 | date=2008 | pages=L4–L7 | doi=10.1111/j.1745-3933.2008.00465.x | last2=Gillon | first2=M. | last3=Hellier | first3=C. | last4=Maxted | first4=P. F. L. | last5=Pepe | first5=F. | last6=Queloz | first6=D. | last7=Wilson | first7=D. M. | last8=Collier Cameron | first8=A. | last9=Smalley | first9=B. | last10=Lister | first10=T. A. | last11=Bentley | first11=S. J. | last12=Blecha | first12=A. | last13=Christian | first13=D. J. | last14=Enoch | first14=B. | last15=Hebb | first15=L. | last16=Horne | first16=K. | last17=Irwin | first17=J. | last18=Joshi | first18=Y. C. | last19=Kane | first19=S. R. | last20=Marmier | first20=M. | last21=Mayor | first21=M. | last22=Parley | first22=N. R. | last23=Pollacco | first23=D. L. | last24=Pont | first24=F. | last25=Ryans | first25=R. | last26=Ségransan | first26=D. | last27=Skillen | first27=I. | last28=Street | first28=R. A. | last29=Udry | first29=S. | last30=West | first30=R. G. | issue=1 |doi-access=free |bibcode = 2008MNRAS.387L...4A |arxiv = 0801.1685 | s2cid=36741190 | display-authors=29 }}</ref>

<ref name="Albrecht2012">{{citation|arxiv=1206.6105|title=Obliquities of Hot Jupiter Host Stars: Evidence for Tidal Interactions and Primordial Misalignments|year=2012|doi=10.1088/0004-637X/757/1/18 |last1=Albrecht |first1=Simon |last2=Winn |first2=Joshua N. |last3=Johnson |first3=John A. |last4=Howard |first4=Andrew W. |last5=Marcy |first5=Geoffrey W. |last6=Butler |first6=R. Paul |last7=Arriagada |first7=Pamela |last8=Crane |first8=Jeffrey D. |last9=Shectman |first9=Stephen A. |last10=Thompson |first10=Ian B. |last11=Hirano |first11=Teruyuki |last12=Bakos |first12=Gaspar |last13=Hartman |first13=Joel D. |journal=The Astrophysical Journal |volume=757 |issue=1 |page=18 |bibcode=2012ApJ...757...18A |s2cid=17174530 }}</ref>

<ref name=Zhou2015>{{cite journal|arxiv=1509.04147|doi=10.1093/mnras/stv2138|title=Secondary eclipse observations for seven hot-Jupiters from the Anglo-Australian Telescope|year=2015|last1=Zhou|first1=G.|last2=Bayliss|first2=D. D. R.|last3=Kedziora-Chudczer|first3=L.|last4=Tinney|first4=C. G.|last5=Bailey|first5=J.|last6=Salter|first6=G.|last7=Rodriguez|first7=J.|journal=Monthly Notices of the Royal Astronomical Society|volume=454|issue=3|pages=3002–3019|doi-access=free |bibcode=2015MNRAS.454.3002Z}}</ref>

<ref name="Bonomo2017">{{cite journal |last1=Bonomo |first1=A. S. |last2=Desidera |first2=S. |display-authors=etal |date=June 2017 |title=The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets |journal=[[Astronomy & Astrophysics]] |volume=602 |issue= |pages=A107 |doi=10.1051/0004-6361/201629882 |arxiv=1704.00373 |bibcode=2017A&A...602A.107B |s2cid=118923163}}</ref>

<ref name=Wong2020>{{citation|arxiv=2003.06407|title=Systematic Phase Curve Study of Known Transiting Systems from Year One of the TESS Mission|year=2020|doi=10.3847/1538-3881/ababad |last1=Wong |first1=Ian |last2=Shporer |first2=Avi |last3=Daylan |first3=Tansu |last4=Benneke |first4=Björn |last5=Fetherolf |first5=Tara |last6=Kane |first6=Stephen R. |last7=Ricker |first7=George R. |last8=Vanderspek |first8=Roland |last9=Latham |first9=David W. |last10=Winn |first10=Joshua N. |last11=Jenkins |first11=Jon M. |last12=Boyd |first12=Patricia T. |last13=Glidden |first13=Ana |last14=Goeke |first14=Robert F. |last15=Sha |first15=Lizhou |last16=Ting |first16=Eric B. |last17=Yahalomi |first17=Daniel |journal=The Astronomical Journal |volume=160 |issue=4 |page=155 |bibcode=2020AJ....160..155W |s2cid=212717799 |doi-access=free }}</ref>

}}

==External links==
{{commonscat-inline|WASP-5 b|WASP-5b}}
* [https://web.archive.org/web/20080516083642/http://www.superwasp.org/press_release2/WASP2007_national_pressV5.pdf UK planet hunters announce three new finds]
* [https://web.archive.org/web/20021208111324/http://www.superwasp.org/ SuperWASP Homepage]

{{Sky|23|57|24|-|41|16|38|967}}{{Phoenix (constellation)}}
[[Category:Exoplanets discovered by WASP]]
[[Category:Exoplanets discovered in 2007]]
[[Category:Giant planets]]
[[Category:Hot Jupiters]]
[[Category:Transiting exoplanets]]
[[Category:Phoenix (constellation)]]

[[de:WASP-5 b]]