This is a list of the hottest exoplanets so far discovered, specifically those with temperatures greater than 2500 K (2230 °C; 4040 °F) for exoplanets irradiated by a nearby star and greater than 2000 K (1730 °C; 3140 °F) for self-luminous exoplanets. For comparison, the hottest planet in the Solar System is Venus, with a temperature of 737 K (464 °C; 867 °F).

List of hottest exoplanets irradiated by a nearby star

Methods for finding temperature:

Teff: Measured effective temperature. Teq: The temperature of the planet has not been measured, so it is listed with the calculated equilibrium temperature.

Image (Or artistic representation)NameTemperature (K)MassMethod NotesKELT-9bTeffHottest known exoplanet, with a temperature comparable to K-type stars.55 Cancri e (Janssen)Hottest confirmed rocky exoplanet.TOI-2109bHas the shortest orbital period among the hot Jupiters in .BD-14 3065bWASP-189bTOI-1518bWASP-103b First exoplanet to have a deformation detected. (see Jacobi ellipsoid)KELT-16bWASP-12bThis planet is so close to its parent star that its tidal forces are distorting it into an egg shape. First planet observed being consumed by its host star;Hubble Finds a Star Eating a Planet nasa.gov. 2010-05-20. Retrieved on 2010-12-10. it will be destroyed in 3.16 ± 0.10 due to tidal interactions.WASP-33bFirst planet discovered to orbit a Delta Scuti variable starWASP-18bMASCARA-1bHATS-70bTeqWASP-100bTeffMASCARA-5bWASP-76b (dayside) A glory effect in the atmosphere of WASP-76b might be responsible for the observed increase in brightness of its eastern terminator zone which if confirmed, it would become the first exoplanet to have its glory-like phenomenon to be discovered.HAT-P-7bFirst exoplanet to have a crude map of cloud coverageTOI-2260 b0.011 TeqHAT-P-70bTeqKepler-13b (2277 °C)9.28(16) Discovered by Kepler in first four months of Kepler data. The following well-known planets are listed for the purpose of comparison.Kepler-10b ()Teq First confirmed terrestrial planet to have been discovered outside the Solar SystemTrES-4b ()Largest confirmed exoplanet ever found at the time of discovery. This planet has a density of 0.17 g/cm3, comparable to that of balsa wood, less than Saturn's 0.7 g/cm3.CoRoT-7b ()Smallest exoplanet to have its diameter measured at the time of discovery and first potential extrasolar terrestrial planet to be found.Upsilon Andromedae b (Saffar) ()TeffFirst multiple-planet system to be discovered around a main-sequence star, and first multiple-planet system known in a multiple-star system.WASP-17b (Ditsö̀) ()With a density of about 0.08 g/cm3, it is one of the puffiest exoplanets known.HD 209458 b ("Osiris") ()Represents multiple milestones in exoplanetary discovery, such as the first exoplanet known observed to transit its host star, the first exoplanet with a precisely measured radius, one of first two exoplanets (other being HD 189733 Ab) to be observed spectroscopically and the first to have an atmosphere detected, containing evaporating hydrogen, and oxygen and carbon. First extrasolar gas giant to have its superstorm measured. Also first (indirect) detection of a magnetic field on an exoplanet. Nicknamed "Osiris".TrES-2b ()TeqThe darkest exoplanet known, reflecting less than 1% its star's light.51 Pegasi b (Dimidium) () TeqThe first exoplanet discovered orbiting a main-sequence star.Kepler-20e ()The first planet smaller than Earth discovered after PSR B1257+12 b.Venus (for reference) ()Hottest planet in the Solar System.

List of hottest self-luminous exoplanets

All these are measured temperatures. Image(Or artistic representation)NameTemperature (K)Mass ()NotesHIP 78530 b 28 ± 10Likely a brown dwarf.GQ Lupi b~ 20 (1 – 39)Likely a brown dwarf. First confirmed exoplanet candidate to be directly imaged.CT Chamaelontis b(CT Cha b)17 ± 6Likely a brown dwarf. Furthest planet to be directly imaged at the distance of .DH Tauri b11 ± 3 First planet to have a confirmed circumplanetary disk and youngest confirmed planet at an age of 0.7 Myr. The following well-known planets are listed for the purpose of comparison.Beta Pictoris b ()11.729First exoplanet to have its rotation rate measured and fastest-spinning planet discovered at the equator speed of or .

Unconfirmed candidates These planet candidates have not been confirmed.

Image (Or artistic representation)NameTemperature (K)MassMethod Kepler-70bTeqKepler-70cWD 2226-210 bVega b

Notes

References