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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 comparison, the hottest planet in the Solar System is Venus, with a temperature of 737 K (464 °C; 867 °F).

List

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

Methods for finding temperature:

Image

(Or artistic representation)

Name Temperature (K) Mass Method Notes
KELT-9b 4,643±26 [1] 2.88 MJ [1] Teff Hottest known exoplanet, with a temperature comparable to K-type stars.
AB Aurigae b 3,800 [2] 9-12 MJ [3]
55 Cancri e (Janssen) 3,771+669
−520 [4] 		7.99 M🜨 [4]
TOI-2109b 3,631±69 [5] 5.02 MJ [5]
WASP-189b 3,435±27 [6] 1.99 MJ [6]
TOI-1518b 3,237±59 [7] <2.3 MJ [7]
WASP-103b 3,205±136 [8] 1.455 MJ [8]
KELT-16b 3,190±61 [9] 2.75 MJ [9]
WASP-12b 3,128±66 [10] 1.465 MJ [10] This planet is so close to its parent star that its tidal forces are distorting it into an egg shape.
WASP-33b 3,108±113 [8] 2.093 MJ [8]
WASP-18b 3,067±104 [8] 10.20 MJ [8]
MASCARA-1b 3,062±67 [11] 3.7 MJ [11]
HATS-70b 2,730+140
−160 [12] 		12.9 MJ [12] Teq
WASP-100b 2,710 [13] 2.03 MJ [13] Teff
HIP 78530 b 2,700±100 [14] 23 MJ [14] Likely a brown dwarf.
MASCARA-5b 2,700 [15] 3.12 MJ [15]
WASP-76b 2,670 (dayside) [16] 0.92 MJ In this tidally locked planet where winds move 18,000 km/h, molten iron rains from the sky due to daytime temperatures exceeding 2,400 °C (2,670 K). [17] [18]
HAT-P-7b 2,667±57 [19] 1.682 MJ [19]
GQ Lupi b 2,650±100 [20] 20 MJ [20] [20]Likely a brown dwarf.
TOI-2260 b 2,609±86 [12] Teq
CT Chamaelontis b 2,600±250 [21] 17 MJ [21] Teff Likely a brown dwarf.
HAT-P-70b 2,562+43
−52 [12] 		6.78 MJ [12] Teq
Kepler-13b 2,550±80 (2277 °C) [12] 9.78 MJ [12]
The following well-known planets are listed for the purpose of comparison.
Kepler-10b 2,130+60
−120 (1,857 °C) [22] 		4.6 M🜨 [22] Teq
TrES-4b 1,782±29 (1,509 °C) [23] 0.919 MJ [23] One of the largest known exoplanets.
CoRoT-7b 1,756±27 (1,483 °C) [24] 5.74 M🜨 [24]
Upsilon Andromedae b (Saffar) 1,673 (1,400 °C) [25] 1.7 MJ [26] Teff
WASP-17b (Ditsö̀) 1,550+170
−200 (1,277 °C) [27] 		0.512 MJ [27] With a density of about 0.08 g/cm3, [28] it is one of the puffiest exoplanets known.
HD 209458 b (Osiris) 1,499±15 (1,226 °C) [29] 0.682 MJ [27]
TrES-2b 1,466±9 (1,193 °C) [30] 1.253 MJ [30] Teq The darkest exoplanet known, reflecting less than 1% its star's light.
Beta Pictoris b 1,451±15 (1,178 °C) [31] 11.729 MJ [32] Teff
51 Pegasi b (Dimidium) 1,265 (992 °C) 0.46 MJ Teq The first exoplanet discovered orbiting a main-sequence star.
Kepler-20e 1,004±14 (735 °C) [33] <0.76 M🜨 [33] The first planet smaller than Earth discovered after PSR B1257+12 b.
Venus (for reference) 735 (462 °C) [34] 0.815 M🜨 [34] Hottest planet in the Solar System.

Unconfirmed candidates

These planet candidates have not been confirmed.

Image

(Or artistic representation)

Name Temperature (K) Mass Method
Kepler-70b 7,662 [a] 0.44 M🜨 Teq
Kepler-70c 6,807 [b] 0.655 M🜨
Vega b 3,250 [35] [c] 21.9 M🜨

Notes

  1. ^ Assuming albedo of 0.1
  2. ^ Assuming albedo of 0.1
  3. ^ Assuming bond albedo of 0.25

References

  1. ^ a b Jones, K.; Morris, B. M.; et al. (October 2022). "The stable climate of KELT-9b". Astronomy & Astrophysics. 666: A118. arXiv: 2208.04818. Bibcode: 2022A&A...666A.118J. doi: 10.1051/0004-6361/202243823. S2CID  251442580.
  2. ^ Zhou, Yifan; Sanghi, Aniket; Bowler, Brendan P.; Wu, Ya-Lin; Close, Laird M.; Long, Feng; Ward-Duong, Kimberly; Zhu, Zhaohuan; Kraus, Adam L.; Follette, Katherine B.; Bae, Jaehan (2022-07-01). "HST/WFC3 Hα Direct-imaging Detection of a Pointlike Source in the Disk Cavity of AB Aur". The Astrophysical Journal Letters. 934 (1): L13. arXiv: 2207.06525. Bibcode: 2022ApJ...934L..13Z. doi: 10.3847/2041-8213/ac7fef. ISSN  2041-8205.
  3. ^ Currie, Thayne; Lawson, Kellen; Schneider, Glenn; Lyra, Wladimir; Wisniewski, John; Grady, Carol; Guyon, Olivier; Tamura, Motohide; Kotani, Takayuki; Kawahara, Hajime; Brandt, Timothy; Uyama, Taichi; Muto, Takayuki; Dong, Ruobing; Kudo, Tomoyuki (June 2022). "Images of embedded Jovian planet formation at a wide separation around AB Aurigae". Nature Astronomy. 6 (6): 751–759. arXiv: 2204.00633. Bibcode: 2022NatAs...6..751C. doi: 10.1038/s41550-022-01634-x. hdl: 1887/3561800. ISSN  2397-3366. S2CID  256722225.
  4. ^ a b Mercier, Samson J.; Dang, Lisa; et al. (November 2022). "Revisiting the Iconic Spitzer Phase Curve of 55 Cancri e: Hotter Dayside, Cooler Nightside, and Smaller Phase Offset". The Astronomical Journal. 164 (5): 204. arXiv: 2209.02090. Bibcode: 2022AJ....164..204M. doi: 10.3847/1538-3881/ac8f22.
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  21. ^ a b Schmidt, T. O. B.; Neuhäuser, R.; et al. (November 2008). "Direct evidence of a sub-stellar companion around CT Chamaeleontis". Astronomy and Astrophysics. 491 (1): 311–320. arXiv: 0809.2812. Bibcode: 2008A&A...491..311S. doi: 10.1051/0004-6361:20078840. S2CID  17161561.
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  23. ^ a b Daemgen, S.; Hormuth, F.; Brandner, W.; Bergfors, C.; Janson, M.; Hippler, S.; Henning, Th (May 2009). "Binarity of Transit Host Stars - Implications on Planetary Parameters". Astronomy & Astrophysics. 498 (2): 567–574. arXiv: 0902.2179. Bibcode: 2009A&A...498..567D. doi: 10.1051/0004-6361/200810988. ISSN  0004-6361. S2CID  9893376.
  24. ^ a b Barros, S. C. C.; Almenara, J. M.; Deleuil, M.; Diaz, R. F.; Csizmadia, Sz.; Cabrera, J.; Chaintreuil, S.; Collier Cameron, A.; Hatzes, A.; Haywood, R.; Lanza, A. F.; Aigrain, S.; Alonso, R.; Bordé, P.; Bouchy, F. (2014-09-01). "Revisiting the transits of CoRoT-7b at a lower activity level". Astronomy and Astrophysics. 569: A74. arXiv: 1407.8099. Bibcode: 2014A&A...569A..74B. doi: 10.1051/0004-6361/201423939. ISSN  0004-6361. S2CID  59495602.
  25. ^ Piskorz, Danielle; Benneke, Björn; Crockett, Nathan R.; Lockwood, Alexandra C.; Blake, Geoffrey A.; Barman, Travis S.; Bender, Chad F.; Carr, John S.; Johnson, John A. (2017-08-01). "Detection of Water Vapor in the Thermal Spectrum of the Non-transiting Hot Jupiter Upsilon Andromedae b". The Astronomical Journal. 154 (2): 78. arXiv: 1707.01534. Bibcode: 2017AJ....154...78P. doi: 10.3847/1538-3881/aa7dd8. ISSN  1538-3881.
  26. ^ Harrington, J.; Hansen, B.; Luszcz, S.; Seager, S.; Deming, D.; Menou, K.; Cho, J.; Richardson, L. J. (2006-10-27). "The phase-dependent Infrared brightness of the extrasolar planet upsilon Andromedae b". Science. 314 (5799): 623–626. arXiv: astro-ph/0610491. Bibcode: 2006Sci...314..623H. doi: 10.1126/science.1133904. ISSN  0036-8075. PMID  17038587. S2CID  20549014.
  27. ^ a b c Bonomo, A. S.; Desidera, S.; Benatti, S.; Borsa, F.; Crespi, S.; Damasso, M.; Lanza, A. F.; Sozzetti, A.; Lodato, G.; Marzari, F.; Boccato, C.; Claudi, R. U.; Cosentino, R.; Covino, E.; Gratton, R. (June 2017). "The GAPS Programme with HARPS-N@TNG XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv: 1704.00373. Bibcode: 2017A&A...602A.107B. doi: 10.1051/0004-6361/201629882. ISSN  0004-6361. S2CID  118923163.
  28. ^ Anderson, D. R.; Hellier, C.; Gillon, M.; Triaud, A. H. M. J.; Smalley, B.; Hebb, L.; Cameron, A. Collier; Maxted, P. F. L.; Queloz, D.; West, R. G.; Bentley, S. J.; Enoch, B.; Horne, K.; Lister, T. A.; Mayor, M. (2010-01-20). "WASP-17b: an ultra-low density planet in a probable retrograde orbit". The Astrophysical Journal. 709 (1): 159–167. arXiv: 0908.1553. Bibcode: 2010ApJ...709..159A. doi: 10.1088/0004-637X/709/1/159. ISSN  0004-637X. S2CID  53628741.
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  31. ^ Chilcote, Jeffrey; Pueyo, Laurent; Rosa, Robert J. De; Vargas, Jeffrey; Macintosh, Bruce; Bailey, Vanessa P.; Barman, Travis; Bauman, Brian; Bruzzone, Sebastian; Bulger, Joanna; Burrows, Adam S.; Cardwell, Andrew; Chen, Christine H.; Cotten, Tara; Dillon, Daren (2017-03-28). "1–2.4μm Near-IR Spectrum of the Giant PlanetβPictoris b Obtained with the Gemini Planet Imager". The Astronomical Journal. 153 (4): 182. arXiv: 1703.00011. Bibcode: 2017AJ....153..182C. doi: 10.3847/1538-3881/aa63e9. ISSN  1538-3881.
  32. ^ Feng, Fabo; Butler, R. Paul; Vogt, Steven S.; Clement, Matthew S.; Tinney, C. G.; Cui, Kaiming; Aizawa, Masataka; Jones, Hugh R. A.; Bailey, J.; Burt, Jennifer; Carter, B. D.; Crane, Jeffrey D.; Dotti, Francesco Flammini; Holden, Bradford; Ma, Bo (2022-08-26). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series. 262 (1): 21. arXiv: 2208.12720. Bibcode: 2022ApJS..262...21F. doi: 10.3847/1538-4365/ac7e57. ISSN  0067-0049.
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Retrieved from " https://en.wikipedia.org/?title=List_of_hottest_exoplanets&oldid=1220531554"
From Wikipedia, the free encyclopedia

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 comparison, the hottest planet in the Solar System is Venus, with a temperature of 737 K (464 °C; 867 °F).

List

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

Methods for finding temperature:

Image

(Or artistic representation)

Name Temperature (K) Mass Method Notes
KELT-9b 4,643±26 [1] 2.88 MJ [1] Teff Hottest known exoplanet, with a temperature comparable to K-type stars.
AB Aurigae b 3,800 [2] 9-12 MJ [3]
55 Cancri e (Janssen) 3,771+669
−520 [4] 		7.99 M🜨 [4]
TOI-2109b 3,631±69 [5] 5.02 MJ [5]
WASP-189b 3,435±27 [6] 1.99 MJ [6]
TOI-1518b 3,237±59 [7] <2.3 MJ [7]
WASP-103b 3,205±136 [8] 1.455 MJ [8]
KELT-16b 3,190±61 [9] 2.75 MJ [9]
WASP-12b 3,128±66 [10] 1.465 MJ [10] This planet is so close to its parent star that its tidal forces are distorting it into an egg shape.
WASP-33b 3,108±113 [8] 2.093 MJ [8]
WASP-18b 3,067±104 [8] 10.20 MJ [8]
MASCARA-1b 3,062±67 [11] 3.7 MJ [11]
HATS-70b 2,730+140
−160 [12] 		12.9 MJ [12] Teq
WASP-100b 2,710 [13] 2.03 MJ [13] Teff
HIP 78530 b 2,700±100 [14] 23 MJ [14] Likely a brown dwarf.
MASCARA-5b 2,700 [15] 3.12 MJ [15]
WASP-76b 2,670 (dayside) [16] 0.92 MJ In this tidally locked planet where winds move 18,000 km/h, molten iron rains from the sky due to daytime temperatures exceeding 2,400 °C (2,670 K). [17] [18]
HAT-P-7b 2,667±57 [19] 1.682 MJ [19]
GQ Lupi b 2,650±100 [20] 20 MJ [20] [20]Likely a brown dwarf.
TOI-2260 b 2,609±86 [12] Teq
CT Chamaelontis b 2,600±250 [21] 17 MJ [21] Teff Likely a brown dwarf.
HAT-P-70b 2,562+43
−52 [12] 		6.78 MJ [12] Teq
Kepler-13b 2,550±80 (2277 °C) [12] 9.78 MJ [12]
The following well-known planets are listed for the purpose of comparison.
Kepler-10b 2,130+60
−120 (1,857 °C) [22] 		4.6 M🜨 [22] Teq
TrES-4b 1,782±29 (1,509 °C) [23] 0.919 MJ [23] One of the largest known exoplanets.
CoRoT-7b 1,756±27 (1,483 °C) [24] 5.74 M🜨 [24]
Upsilon Andromedae b (Saffar) 1,673 (1,400 °C) [25] 1.7 MJ [26] Teff
WASP-17b (Ditsö̀) 1,550+170
−200 (1,277 °C) [27] 		0.512 MJ [27] With a density of about 0.08 g/cm3, [28] it is one of the puffiest exoplanets known.
HD 209458 b (Osiris) 1,499±15 (1,226 °C) [29] 0.682 MJ [27]
TrES-2b 1,466±9 (1,193 °C) [30] 1.253 MJ [30] Teq The darkest exoplanet known, reflecting less than 1% its star's light.
Beta Pictoris b 1,451±15 (1,178 °C) [31] 11.729 MJ [32] Teff
51 Pegasi b (Dimidium) 1,265 (992 °C) 0.46 MJ Teq The first exoplanet discovered orbiting a main-sequence star.
Kepler-20e 1,004±14 (735 °C) [33] <0.76 M🜨 [33] The first planet smaller than Earth discovered after PSR B1257+12 b.
Venus (for reference) 735 (462 °C) [34] 0.815 M🜨 [34] Hottest planet in the Solar System.

Unconfirmed candidates

These planet candidates have not been confirmed.

Image

(Or artistic representation)

Name Temperature (K) Mass Method
Kepler-70b 7,662 [a] 0.44 M🜨 Teq
Kepler-70c 6,807 [b] 0.655 M🜨
Vega b 3,250 [35] [c] 21.9 M🜨

Notes

  1. ^ Assuming albedo of 0.1
  2. ^ Assuming albedo of 0.1
  3. ^ Assuming bond albedo of 0.25

References

  1. ^ a b Jones, K.; Morris, B. M.; et al. (October 2022). "The stable climate of KELT-9b". Astronomy & Astrophysics. 666: A118. arXiv: 2208.04818. Bibcode: 2022A&A...666A.118J. doi: 10.1051/0004-6361/202243823. S2CID  251442580.
  2. ^ Zhou, Yifan; Sanghi, Aniket; Bowler, Brendan P.; Wu, Ya-Lin; Close, Laird M.; Long, Feng; Ward-Duong, Kimberly; Zhu, Zhaohuan; Kraus, Adam L.; Follette, Katherine B.; Bae, Jaehan (2022-07-01). "HST/WFC3 Hα Direct-imaging Detection of a Pointlike Source in the Disk Cavity of AB Aur". The Astrophysical Journal Letters. 934 (1): L13. arXiv: 2207.06525. Bibcode: 2022ApJ...934L..13Z. doi: 10.3847/2041-8213/ac7fef. ISSN  2041-8205.
  3. ^ Currie, Thayne; Lawson, Kellen; Schneider, Glenn; Lyra, Wladimir; Wisniewski, John; Grady, Carol; Guyon, Olivier; Tamura, Motohide; Kotani, Takayuki; Kawahara, Hajime; Brandt, Timothy; Uyama, Taichi; Muto, Takayuki; Dong, Ruobing; Kudo, Tomoyuki (June 2022). "Images of embedded Jovian planet formation at a wide separation around AB Aurigae". Nature Astronomy. 6 (6): 751–759. arXiv: 2204.00633. Bibcode: 2022NatAs...6..751C. doi: 10.1038/s41550-022-01634-x. hdl: 1887/3561800. ISSN  2397-3366. S2CID  256722225.
  4. ^ a b Mercier, Samson J.; Dang, Lisa; et al. (November 2022). "Revisiting the Iconic Spitzer Phase Curve of 55 Cancri e: Hotter Dayside, Cooler Nightside, and Smaller Phase Offset". The Astronomical Journal. 164 (5): 204. arXiv: 2209.02090. Bibcode: 2022AJ....164..204M. doi: 10.3847/1538-3881/ac8f22.
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