CoRoT-8b

{{Short description|Extrasolar planet in the constellation Aquila}}

{{Infobox planet

| name = CoRoT-8b

| symbol =

| image = CoRoT-8b compared to Jupiter and Neptune.

| image_size =

| image_alt =

| caption = CoRoT-8b compared to Jupiter and Neptune.

| background = #96ccf2

| bgcolour =

| label_width =

| discoverer = Borde et al.

| discovery_site = CoRoT space telescope

| discovered = 12 April 2010

| discovery_method = Transit

| discovery_ref =

| exosolar planets =

| minorplanet =

| extrasolarplanet =

| mpc_name =

| pronounced =

| named_after =

| alt_names =

| mp_category =

| adjectives =

| orbit_ref =

| orbit_diagram =

| epoch =

| uncertainty =

| observation_arc =

| earliest_precovery_date =

| apsis = astron

| aphelion =

| perihelion =

| semimajor = {{convert|0.0636|±|0.0014|AU|km|abbr=on}}

| mean_orbit_radius =

| eccentricity = <0.19

| period = {{val|6.212445|0.000007|fmt=commas|ul=days}}

| synodic_period =

| avg_speed =

| mean_anomaly =

| mean_motion =

| inclination = {{val|88.18|0.08|ul=°}}

| angular_dist =

| asc_node =

| long_periastron =

| time_periastron = {{val|2454239.03317|0.00049|fmt=commas|ul=JD}}

| arg_peri =

| semi-amplitude = {{val|27.6|5.8|4.7|ul=m/s}}

| satellite_of =

| satellites =

| star = {{ill|CoRoT-8|ru}}

| allsatellites =

| tisserand =

| physical_ref =

| dimensions =

| mean_diameter =

| mean_radius = {{val|0.619|0.016|0.017|ul=Jupiter radius}}

| equatorial_radius =

| polar_radius =

| flattening =

| circumference =

| surface_area =

| volume =

| mass = {{val|0.218|0.034|ul=Jupiter mass}}

| density = {{val|1.1|0.2|ul=g/cm3}}

| surface_grav =

| moment_of_inertia_factor =

| escape_velocity =

| rotation =

| sidereal_day =

| rot_velocity =

| axial_tilt =

| right_asc_north_pole =

| declination =

| pole_ecliptic_lat =

| pole_ecliptic_lon =

| albedo =

| single_temperature = {{convert|870|±|14|K|F C}}

| spectral_type =

| magnitude =

| abs_magnitude =

| angular_size =

| family =

| atmosphere_ref =

| atmosphere =

| scale_height =

| surface_pressure =

| atmosphere_composition =

| note =

}}

CoRoT-8b is a transiting exoplanet orbiting the K-type main sequence star CoRoT-8 1,050 light years away in the equatorial constellation Aquila. The planet was discovered in April 2010 by the CoRoT telescope.

Discovery

This planet was discovered using the transit method, which detects planet via eclipses. The discovery paper's abstract states that CoRoT-8b is extremely dense compared to Saturn.

Properties

CoRoT-8b has 21.8% Jupiter's mass, and due to its close orbit, a radius 61.9% that of Jupiter. This classifies the planet as a hot Saturn. Despite the bloated radius, the planet is extremely dense, with it being 1.1 times greater than water's; CoRoT-8b has a temperature of 870 K from its 6-day orbit.

References

{{Reflist||refs=

{{cite journal |display-authors=1 |last1=Bordé |first1=P. |last2=Bouchy |first2=F. |last3=Deleuil |first3=M. |last4=Cabrera |first4=J. |last5=Jorda |first5=L. |last6=Lovis |first6=C. |last7=Csizmadia |first7=S. |last8=Aigrain |first8=S. |last9=Almenara |first9=J. M. |last10=Alonso |first10=R. |last11=Auvergne |first11=M. |last12=Baglin |first12=A. |last13=Barge |first13=P. |last14=Benz |first14=W. |last15=Bonomo |first15=A. S. |last16=Bruntt |first16=H. |last17=Carone |first17=L. |last18=Carpano |first18=S. |last19=Deeg |first19=H. |last20=Dvorak |first20=R. |last21=Erikson |first21=A. |last22=Ferraz-Mello |first22=S. |last23=Fridlund |first23=M. |last24=Gandolfi |first24=D. |last25=Gazzano |first25=J. -C. |last26=Gillon |first26=M. |last27=Guenther |first27=E. |last28=Guillot |first28=T. |last29=Guterman |first29=P. |last30=Hatzes |first30=A. |last31=Havel |first31=M. |last32=Hébrard |first32=G. |last33=Lammer |first33=H. |last34=Léger |first34=A. |last35=Mayor |first35=M. |last36=Mazeh |first36=T. |last37=Moutou |first37=C. |last38=Pätzold |first38=M. |last39=Pepe |first39=F. |last40=Ollivier |first40=M. |last41=Queloz |first41=D. |last42=Rauer |first42=H. |last43=Rouan |first43=D. |last44=Samuel |first44=B. |last45=Santerne |first45=A. |last46=Schneider |first46=J. |last47=Tingley |first47=B. |last48=Udry |first48=S. |last49=Weingrill |first49=J. |last50=Wuchterl |first50=G. |title=Transiting exoplanets from the CoRoT space mission. XI. CoRoT-8b: a hot and dense sub-Saturn around a K1 dwarf |journal=Astronomy and Astrophysics |date=September 2010 |volume=520 |pages=A66 |doi=10.1051/0004-6361/201014775 |bibcode=2010A&A...520A..66B |issn=0004-6361 |arxiv=1008.0325|s2cid=56357511 }}

{{cite journal |last1=Raetz |first1=St |last2=Heras |first2=A. M. |last3=Fernández |first3=M. |last4=Casanova |first4=V. |last5=Marka |first5=C. |title=Transit analysis of the CoRoT-5, CoRoT-8, CoRoT-12, CoRoT-18, CoRoT-20, and CoRoT-27 systems with combined ground- and space-based photometry |journal=Monthly Notices of the Royal Astronomical Society |date=February 2019 |volume=483 |issue=1 |pages=824–839 |doi=10.1093/mnras/sty3085 |doi-access=free |bibcode=2019MNRAS.483..824R|issn=0035-8711 |arxiv=1812.01536}}

{{cite journal |display-authors=1 |last1=Bonomo |first1=A. S. |last2=Desidera |first2=S. |last3=Benatti |first3=S. |last4=Borsa |first4=F. |last5=Crespi |first5=S. |last6=Damasso |first6=M. |last7=Lanza |first7=A. F. |last8=Sozzetti |first8=A. |last9=Lodato |first9=G. |last10=Marzari |first10=F. |last11=Boccato |first11=C. |last12=Claudi |first12=R. U. |last13=Cosentino |first13=R. |last14=Covino |first14=E. |last15=Gratton |first15=R. |last16=Maggio |first16=A. |last17=Micela |first17=G. |last18=Molinari |first18=E. |last19=Pagano |first19=I. |last20=Piotto |first20=G. |last21=Poretti |first21=E. |last22=Smareglia |first22=R. |last23=Affer |first23=L. |last24=Biazzo |first24=K. |last25=Bignamini |first25=A. |last26=Esposito |first26=M. |last27=Giacobbe |first27=P. |last28=Hébrard |first28=G. |last29=Malavolta |first29=L. |last30=Maldonado |first30=J. |last31=Mancini |first31=L. |last32=Martinez Fiorenzano |first32=A. |last33=Masiero |first33=S. |last34=Nascimbeni |first34=V. |last35=Pedani |first35=M. |last36=Rainer |first36=M. |last37=Scandariato |first37=G. |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 and Astrophysics |date=June 2017 |volume=602 |pages=A107 |doi=10.1051/0004-6361/201629882 |bibcode=2017A&A...602A.107B |issn=0004-6361

|arxiv=1704.00373|s2cid=118923163 }}

}}

{{Exoplanet search projects}}

{{Stars of Aquila}}

{{DEFAULTSORT:CoRoT-8b}}

Category:Hot Jupiters

Category:Transiting exoplanets

Category:Exoplanets discovered in 2010

8b

Category:Aquila (constellation)