List of hottest exoplanets

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).

Methods for finding temperature:

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

Image (Or artistic representation)	Name	Temperature (K)	Mass	Method	Notes
	KELT-9b	4643±26[1]	2.17±0.56 MJ[2]	Teff	Hottest known exoplanet, with a temperature comparable to K-type stars.
	55 Cancri e (Janssen)	3771+669 −520[3]	7.99 M🜨[3]		Hottest confirmed rocky exoplanet.
	TOI-2109b	3631±69[4]	5.02±0.75 MJ[4]		Has the shortest orbital period among the hot Jupiters in 0.6725 days (16.14 hours).[4]
	BD-14 3065b	3520±130[5]	12.37±0.92 MJ[5]
	WASP-189b	3435±27[6]	1.99+0.16 −0.14 MJ[6]
	TOI-1518b	3237±59[7]	<2.3 MJ[7]
	WASP-103b	3205±136[8]	1.455+0.090 −0.091 MJ[8]		First exoplanet to have a deformation detected.[9] (see Jacobi ellipsoid)
	KELT-16b	3190±61[10]	2.75 MJ[10]
	WASP-12b	3128±66[11]	1.476+0.076 −0.069 MJ[12]		This 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;[13] it will be destroyed in 3.16 ± 0.10 Ma due to tidal interactions.[14][15]
	WASP-33b	3108±113[8]	2.81±0.53 MJ[16]		First planet discovered to orbit a Delta Scuti variable star
	WASP-18b	3067±104[8]	10.20±0.35 MJ[8]
	MASCARA-1b	3062±67[17]	3.7 MJ[17]
	HATS-70b	2730+140 −160[18]	12.9 MJ[18]	Teq
	WASP-100b	2710[19]	2.03 MJ[19]	Teff
	MASCARA-5b	2700[20]	3.12 MJ[20]
	WASP-76b	2670 (dayside)[21]	0.92±0.032 MJ[22]		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.[23][24]
	HAT-P-7b	2667±57[25]	1.806±0.036 MJ[26]		First exoplanet to have a crude map of cloud coverage
	TOI-2260 b	2609±86[18]	0.011 +0.0079−0.0041 MJ[27]	Teq
	HAT-P-70b	2562+43 −52[18]	6.78 MJ[18]	Teq
	Kepler-13b	2550±80 (2277 °C)[18]	9.28(16) MJ[28]		Discovered by Kepler in first four months of Kepler data.[29]
	The following well-known planets are listed for the purpose of comparison.
	Kepler-10b	2130+60 −120 (1857 °C)[30]	3.58±0.33 M🜨[31]	Teq	First confirmed terrestrial planet to have been discovered outside the Solar System
	TrES-4b	1782±29 (1509 °C)[32]	0.78±0.19 MJ[33]		Largest confirmed exoplanet ever found at the time of discovery.[34] This planet has a density of 0.17 g/cm3, comparable to that of balsa wood, less than Saturn's 0.7 g/cm3.[35]
	CoRoT-7b	1756±27 (1483 °C)[36]	5.74 M🜨[36]		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)	1673 (1400 °C)[37]	1.70+0.33 −0.24 MJ[38]	Teff	First 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)	1550+170 −200 (1277 °C)[26]	0.512±0.037 MJ[26]		With a density of about 0.08 g/cm3,[39] it is one of the puffiest exoplanets known.
	HD 209458 b ("Osiris")	1499±15 (1226 °C)[40]	0.682+0.014 −0.015 MJ[26]		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[41][42] and the first to have an atmosphere detected, containing evaporating hydrogen, and oxygen and carbon. First extrasolar gas giant to have its superstorm measured.[43] Also first (indirect) detection of a magnetic field on an exoplanet.[44] Nicknamed "Osiris".
	TrES-2b	1466±9 (1193 °C)[45]	1.253 MJ[45]	Teq	The darkest exoplanet known, reflecting less than 1% its star's light.
	51 Pegasi b (Dimidium)	1265 (992 °C)	0.46+0.06 −0.01 MJ[46]	Teq	The first exoplanet discovered orbiting a main-sequence star.
	Kepler-20e	1004±14 (735 °C)[47]	<0.76 M🜨[47]		The first planet smaller than Earth discovered after PSR B1257+12 b.
	Venus (for reference)	735 (462 °C)[48]	0.815 M🜨[48]		Hottest planet in the Solar System.

All these are measured temperatures.

Image (Or artistic representation)	Name	Temperature (K)	Mass (MJ)	Notes
	HIP 78530 b	2700±100[49]	28 ± 10[50]	Likely a brown dwarf.
	GQ Lupi b	2650±100[51]	~ 20 (1 – 39)[51]	Likely a brown dwarf. First confirmed exoplanet candidate to be directly imaged.
	CT Chamaelontis b (CT Cha b)	2600±250[52]	17 ± 6[52]	Likely a brown dwarf. Furthest planet to be directly imaged at the distance of 622 ly (190.71 pc).
	DH Tauri b	2400±100[53]	11 ± 3[53]
	The following well-known planets are listed for the purpose of comparison.
	Beta Pictoris b	1724±15 (1451 °C)[54]	11.729 +2.337−2.135[55]	First exoplanet to have its rotation rate measured[56] and fastest-spinning planet discovered at the equator speed of 19.9 ± 1.0 km/s (12.37 ± 0.62 mi/s) or 71,640 ± 3,600 km/h (44,520 ± 2,240 mph).[57]

These planet candidates have not been confirmed.

Image (Or artistic representation)	Name	Temperature (K)	Mass	Method
	Kepler-70b	7662 [lower-alpha 1]	0.44 M🜨	Teq
	Kepler-70c	6807 [lower-alpha 2]	0.655 M🜨
	WD 2226-210 b	4970[58]
	Vega b	3250 [59][lower-alpha 3]	21.9 M🜨

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