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This is a list of the hottest exoplanets so far discovered, specifically those with temperatures greater than 2,500 K (2,230 °C; 4,040 °F) for exoplanets irradiated by a nearby star and greater than 2,000 K (1,730 °C; 3,140 °F) for self-luminous exoplanets.
Hottest non-compact star with a planet NSVS 14256825 b: NSVS 14256825: 40 000 K (primary) [108] NN Serpentis is hotter, with a temperature of 57 000 K for the primary star, [1] but the existence of its planets is disputed. [109] A candidate planet was found around the O-type subdwarf TOI-709, whose effective temperature is higher at 50,000 K. [110]
WASP-12b is a hot Jupiter [6] (a class of extrasolar planets) orbiting the star WASP-12, discovered in April of 2008, by the SuperWASP planetary transit survey. [7] [1] The planet takes only a little over one Earth day to orbit its star, in contrast to about 365.25 days for the Earth to orbit the Sun.
The surface temperature is 10,170 K (9,897 °C; 17,846 °F), unusually hot for a star with a transiting planet. Prior to the discovery of KELT-9b, only six A-type stars were known to have planets, of which the warmest, WASP-33 , is significantly cooler at 7,430 K (7,157 °C; 12,914 °F); no B-type stars were previously known to host planets.
The planet orbits a star similar to the Sun, named Kepler-37, orbited by a total of four planets. The star has a mass of 0.80 M ☉ and a radius of 0.79 R ☉. It has a temperature of, 5417 K and is 5.66 billion years old. In comparison, the Sun is 4.6 billion years old, [8] and has a temperature of 5778 K. [9]
The planet’s 10 hottest years since 1850 have all occurred in the past decade, according to NOAA. The new record comes as little surprise after a year beset by extremes.
Kepler-452b (sometimes quoted to be an Earth 2.0 or Earth's Cousin [4] [5] based on its characteristics; also known by its Kepler object of interest designation KOI-7016.01) is a candidate [6] [7] super-Earth exoplanet orbiting within the inner edge of the habitable zone of the sun-like star Kepler-452 and is the only planet in the system discovered by the Kepler space telescope.
The record is all but certainly the warmest temperature the planet has seen in at least 100,000 years. ... Sunday was the hottest day in recorded history, according to preliminary data from a ...