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This is a list of the coolest exoplanets known, specifically those with temperatures lower than −75 °C (198 K). Planets from the Solar System were also included for comparison purposes. Discovered in 2006, OGLE-2005-BLG-390Lb is the coldest known exoplanet, and was nicknamed "Hoth" by NASA in reference to the planet from the Star Wars ...
A candidate planet was found around the O-type subdwarf TOI-709, whose effective temperature is higher at 50,000 K. [110] Hottest main-sequence star with a planet b Centauri b: b Centauri: 18 310 ± 320 K [111] Coolest star with a planet TRAPPIST-1 planets TRAPPIST-1: 2511 K
Temperature (K) Mass Notes HIP 78530 b: 2,700 ± 100 [29] 23 M J [29] Likely a brown dwarf. GQ Lupi b: 2,650 ± 100 [30] 20 M J [30] [30] Likely a brown dwarf. CT Chamaelontis b: 2,600 ± 250 [31] 17 M J [31] Likely a brown dwarf. DH Tauri b 2,400 ± 100 [32] 11 M J [32] The following well-known planets are listed for the purpose of comparison ...
0.055 M Earth Mercury [28] 318 M Earth Jupiter [26] 2500 km Mercury [29] 69911 k m Jupiter [28] Dwarf planet: ≈0.43 k m/s Orcus: 1.3 km/s Eris: 0.0000916 M Earth Orcus [20] [NB 3] 0.0028 M Earth Eris: 487.3 km Ceres: 1187 km Pluto: Major moon of major or dwarf planet [NB 2] 0.16 km/s Mimas: 2.74 km/s Ganymede: 0.000006 M Earth Mimas: 0.0250 M ...
TRAPPIST-1 is a cool red dwarf star [c] with seven known exoplanets.It lies in the constellation Aquarius about 40.66 light-years away from Earth, and has a surface temperature of about 2,566 K (2,290 °C; 4,160 °F).
The geologic temperature record are changes in Earth's environment as determined from geologic evidence on multi-million to billion (10 9) year time scales. The study of past temperatures provides an important paleoenvironmental insight because it is a component of the climate and oceanography of the time.
The Boomerang Nebula is a protoplanetary nebula [2] located 5,000 light-years from Earth in the constellation Centaurus. It is also known as the Bow Tie Nebula and catalogued as LEDA 3074547. [3] The nebula's temperature is measured at 1 K (−272.15 °C; −457.87 °F) making it the coolest natural place currently known in the Universe. [4] [5 ...
The surface temperature is at least 35.6 K, with the nitrogen atmosphere in equilibrium with nitrogen ice on Triton's surface. Triton has increased in absolute temperature by 5% since 1989 to 1998. [34] [35] A similar rise of temperature on Earth would be equal to about 11 °C (20 °F) increase in temperature in nine years. "At least since 1989 ...