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This is a list of coolest stars discovered, arranged by decreasing temperature. The stars with temperatures lower than 2,000 K are included.


This list is incomplete; you can help by adding missing items. (October 2016)
Star name Temperature


Spectral type Distance (light years) Notes
WISE J0855-0714 225–260[1] Y4 7.27±0.13
WISE 1828+2650 250-400 >Y2 46.6
WISE 1405+5534 350[2] Y0[2][3] 20.6
CFBDSIR 1458+10B 370 Y0 104
WISE 1828+2650 406[4] Y2V[5] 32.5
WISE 1217+1626 B 450 Y0-0.5 33
WISE 1217+1626 A 575 T8.5-9 33
UGPS J0521+3640 600–650 T8.5 26.7
2MASS 0939-2448 A/B 650[6] T8 17.4±0.4
2MASS 0415-0935 764 T8V 18.6±0.2
2M 1237+6526 850[7] T6.5 46
2MASS J0348−6022 880 T7[8] 27.2
SCR 1845-6357B 950 T6 13.050±0.008
Epsilon Indi Bb 993 T6 12.05
2MASS 0243-2453 1,050 T6 35±1
Cha 110913-773444 1,350 M9.5 529
Epsilon Indi Ba 1,353 T1-1.5 12.05
2MASS 0036+1821 1,650 L3.5 28.51±0.05
2MASS 1507-1627 1,650 L5 24.12±0.06
OTS 44 1,700 M9.5 554
GD 165 B 1,755[9] L4[10] 109
S Cassiopeiae 1,800 S3,4–S5,8 3,100±300
V384 Persei 1,820[11] N
DENIS-P J1058.7−1548 1,850[12] L3 49
T Draconis 1,850[11] C6,2e
V346 Puppis 1,875[11] C
S Aurigae 1,940[11] C-N5+
V1426 Cygni 1,975[11] C7,2e

See also


  1. ^ Clavin, Whitney; Harrington, J. D. (25 April 2014). "NASA's Spitzer and WISE Telescopes Find Close, Cold Neighbor of Sun". Archived from the original on 26 April 2014.
  2. ^ a b Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, Amanda K.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; Bauer, James M.; Benford, Dominic J.; Bridge, Carrie R.; Lake, Sean E. (2011-12-01). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal Supplement Series. 197 (2): 19. doi:10.1088/0067-0049/197/2/19. ISSN 0067-0049.
  3. ^ Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Mainzer, Amanda K.; Burgasser, Adam J.; Tinney, C. G.; Parker, Stephen; Salter, Graeme (2012-07-10). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2): 156. doi:10.1088/0004-637X/753/2/156. ISSN 0004-637X.
  4. ^ Kirkpatrick, J. Davy; Gelino, Christopher R.; Faherty, Jacqueline K.; Meisner, Aaron M.; Caselden, Dan; Schneider, Adam C.; Marocco, Federico; Cayago, Alfred J.; Smart, R. L.; Eisenhardt, Peter R.; Kuchner, Marc J.; Wright, Edward L.; Cushing, Michael C.; Allers, Katelyn N.; Gagliuffi, Daniella C. Bardalez (2021-03-01). "The Field Substellar Mass Function Based on the Full-sky 20-pc Census of 525 L, T, and Y Dwarfs". The Astrophysical Journal Supplement Series. 253 (1): 7. doi:10.3847/1538-4365/abd107. ISSN 0067-0049.
  5. ^ Beichman, Charles A.; Gelino, Christopher R.; Kirkpatrick, J. Davy; Barman, Travis S.; Marsh, Kenneth A.; Cushing, Michael C.; Wright, E. L. (2013-01-29). "The Coldest Brown Dwarf (Or Free Floating Planet)?: The Y Dwarf WISE 1828+2650". The Astrophysical Journal. 764 (1): 101. doi:10.1088/0004-637X/764/1/101. ISSN 0004-637X.
  6. ^ Leggett, Sandy K.; Cushing, Michael C.; Saumon, Didier; Marley, Mark S.; Roellig, Thomas L.; Warren, Stephen J.; Burningham, Ben; Jones, Hugh R. A.; Kirkpatrick, J. Davy; Lodieu, Nicolas; Lucas, Philip W.; Mainzer, Amy K.; Martín, Eduardo L.; McCaughrean, Mark J.; Pinfield, David J.; Sloan, Gregory C.; Smart, Richard L.; Tamura, Motohide; Van Cleve, Jeffrey E. (2009). "The Physical Properties of Four ~600 K T Dwarfs". The Astrophysical Journal. 695 (2): 1517–1526. arXiv:0901.4093. Bibcode:2009ApJ...695.1517L. doi:10.1088/0004-637X/695/2/1517.
  7. ^ Liebert & Burgasser (2007). "On the Nature of the Unique Hα-emitting T Dwarf 2MASS J12373919+6526148". Astronomy & Astrophysics. 655 (1): 522–527. arXiv:astro-ph/0609793. Bibcode:2007ApJ...655..522L. doi:10.1086/509882.
  8. ^ Tannock, Megan E.; Metchev, Stanimir; Heinze, Aren; Miles-Páez, Paulo A.; Gagné, Jonathan; Burgasser, Adam; Marley, Mark S.; Apai, Dániel; Suárez, Genaro; Plavchan, Peter (2021-05-01). "Weather on Other Worlds. V. The Three Most Rapidly Rotating Ultra-Cool Dwarfs". The Astronomical Journal. 161 (5): 224. doi:10.3847/1538-3881/abeb67. ISSN 0004-6256.
  9. ^ Filippazzo, Joseph C.; Rice, Emily L.; Faherty, Jacqueline; Cruz, Kelle L.; Van Gordon, Mollie M.; Looper, Dagny L. (2015-09-10). "Fundamental Parameters and Spectral Energy Distributions of Young and Field Age Objects with Masses Spanning the Stellar to Planetary Regime". The Astrophysical Journal. 810 (2): 158. doi:10.1088/0004-637X/810/2/158. ISSN 1538-4357.
  10. ^ Kirkpatrick, J. Davy; Reid, I. Neill; Liebert, James; Cutri, Roc M.; Nelson, Brant; Beichman, Charles A.; Dahn, Conard C.; Monet, David G.; Gizis, John E.; Skrutskie, Michael F. (1999-07-01). "Dwarfs Cooler than ``M: The Definition of Spectral Type ``L Using Discoveries from the 2 Micron All-Sky Survey (2MASS)". The Astrophysical Journal. 519: 802–833. doi:10.1086/307414. ISSN 0004-637X.
  11. ^ a b c d e Bergeat, J.; Chevallier, L. (2005). "The mass loss of C-rich giants". Astronomy and Astrophysics. 429: 235–246. arXiv:astro-ph/0601366. Bibcode:2005A&A...429..235B. doi:10.1051/0004-6361:20041280.
  12. ^ Heinze, Aren N.; Metchev, Stanimir; Apai, Daniel; Flateau, Davin; Kurtev, Radostin; Marley, Mark; Radigan, Jacqueline; Burgasser, Adam J.; Artigau, Étienne; Plavchan, Peter (2013-04-08). "Weather on Other Worlds I: Detection of Periodic Variability in the L3 Dwarf DENIS-P J1058.7-1548 with Precise Multi-Wavelength Photometry". The Astrophysical Journal. 767 (2): 173. doi:10.1088/0004-637X/767/2/173. ISSN 0004-637X.
This list is incomplete; you can help by adding missing items. (December 2016)