List of coolest stars

Last updated

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

Contents

Kirkpatrick et al. 2021 [1] has a more complete list of nearby objects with a temperature below 2,400 K. Objects with a temperature below 500 K from this paper were included in this list.

List

Star nameTemperature

(K)

 Spectral type Distance (light years)Notes
WISE 0855–0714 285Y47.426±0.039 [2]
WISE 0336-0143B [3] 295±10 [4] Y1?32.7 [1] spectral type is not yet published, but should be around Y1 if we assume MIRI F480M is similar to W2 and by using Figure 13 from Kirkpatrick et al. 2012 [5] Might be a later spectral type.
WISEA 0830+2837 300-350 [6] >Y1 [1] 26.87 [1] uncertain parallax and spectral type is an estimate
CWISEP 0238-1332 [1] 367±79>Y158.66uncertain parallax and spectral type is an estimate
CWISEP 0402-2651 [1] 367±79>Y139.53uncertain parallax and spectral type is an estimate
WISEU 0503-5648 [1] 367±79>Y133.18spectral type is an estimate
CWISEP 0940+5233 [1] 367±79>Y143.49uncertain parallax and spectral type is an estimate
WISEA 1257+7153 [1] 367±79>Y154.18spectral type is an estimate
CWISEP 1446-2317 [1] 367±79>Y137.75uncertain parallax and spectral type is an estimate
WISEA 1930-2059 [1] 367±79>Y130.67spectral type is an estimate
CWISEP 1935-1546 [1] 367±79>Y147.06spectral type is an estimate
CWISEP 2230+2549 [1] 367±79>Y152.44uncertain parallax and spectral type is an estimate
CWISEP 2256+4002 [1] 367±79>Y132.04spectral type is an estimate
CFBDSIR 1458+10B 370Y0104
WISE 0825+2805 [1] 376±88Y0.521.37
WD 0806-661B [1] 377±88Y162.80spectral type is an estimate
WISE 0350-5658 [1] 388±88Y118.49
WISEA 2354+0240 [1] 388±88Y124.97
WISE 2209+2711 [1] 389±88Y0:20.17
WISE 0647-6232 [1] 393±88Y132.78
WISEPA 1541-2250 [1] 395±88Y119.54
WISE 1828+2650 406±88 [1] Y2V [7] 32.5Temperature could be lower. If it is a binary, its components could be as cold as about 275-350 K. [8]
WISE 0535-7500 [1] 410±88>=Y1:47.48
WISE 1405+5534 411±88 [1] Y0.5(pec?) [1] 20.62
CWISEP 0321+6932 [1] 412±79Y0.547.61spectral type is an estimate
WISE 1639-6847 [1] 412±88Y0pec14.85
CWISEP 2356-4814 [1] 412±79Y0.556.62spectral type is an estimate
WISE 0336-0143A [3] 440±24 [9] Y0 [1] 32.7 [1]
WISEPA 1738+2732 [1] 450±88Y024.92
WISEPA 0410+1502 [1] 451±88Y021.56
WISE 2220-3628 [1] 452±88Y034.15
WISE 1534-1043 453±77 [10] sdY?53possibly halo brown dwarf
WISE 1206+8401 [1] 454±88Y038.51
WISE 0146+4234B [1] 460±79Y063.09
WISEA 0302-5817 [1] 460±79Y0:54.45
CWISEP 0634+5049 [1] 460±79Y052.61spectral type is an estimate
CWISEP 0859+5349 [1] 460±79Y060.62spectral type is an estimate
CWISE 0925-4720 [1] 460±79Y034.96spectral type is an estimate
CWISEP 0938+0634 [1] 460±79Y061.31uncertain parallax and spectral type is an estimate
CWISEP 1047+5457 [1] 460±79Y043.37spectral type is an estimate
CWISE 1121-6232 [1] 460±79Y033.69spectral type is an estimate
WISEA 1141-3326 [1] 460±79Y031.36
WISE 1217+1626 B 460±79 [1] Y0-0.533
CWISE 1531-3306 [1] 460±79Y055.37spectral type is an estimate
WISENF 1936+0408 [1] 460±79Y028.64spectral type is an estimate
CWISEP 2011-4812 [1] 460±79Y045.94spectral type is an estimate
WISEA 2243-1458 [1] 460±79Y047,75spectral type is an estimate
WISE 1112-3857 [1] 461±88T931.79
WISE 0734-7157 [1] 462±88Y043.78
WISE 0713-2917 [1] 464±88Y029.84
WISEPC 2056+1459 [1] 464±88Y023.16
WISE 0304-2705 [1] 465±88Y0~pec44.62
WISE 0359-5401 467+16
−18 [11] 		Y0 [1] 44.31 [1]
WISE 0943+3607 [1] 468±88T9.533.59
WISE 0833+0052 [1] 472±88(sd)T940.92possible subdwarf
WISE 1542+2230 [1] 472±88T9.538.69
WISE 0811-8051 [1] 479±88T9.5:32.91
WISEPA 2134-7137 [1] 481±88T9~pec29.73possible subdwarf
WISE 2212-6931 [1] 487±88T940.47
WISEPA 0751-7634 [1] 492±88T933.32
WISE 0335+4310 [1] 492±88T938.46
WISE 1217+1626 A 575T8.5-933
UGPS J0521+3640 600–650T8.526.7
2MASS 0939-2448 A/B650 [12] T817.4±0.4
2MASS 0415-0935 764T8V18.6±0.2
54 Piscium B810 ± 50T7.5V36.32±0.02 [13]
2M 1237+6526 850 [14] T6.546
2MASS J0348−6022 880T7 [15] 27.2
SCR 1845-6357B 950T613.050±0.008
Epsilon Indi Bb993T612.05
2MASS 0243-2453 1,050T635±1
Cha 110913-773444 1,350M9.5529
Epsilon Indi Ba1,353T1-1.512.05
2MASS 0036+1821 1,650L3.528.51±0.05
2MASS 1507-1627 1,650L524.12±0.06
OTS 44 1,700M9.5554
GD 165 B1,755 [16] L4 [17] 109
S Cassiopeiae 1,800S3,4–S5,83,100±300
V384 Persei 1,820 [18] N
DENIS-P J1058.7−1548 1,850 [19] L349
T Draconis 1,850 [18] C6,2e
V346 Puppis 1,875 [18] C
2MASS J0523-1403 1,939 [20] L2.5V41.62The coolest main sequence star known as of 2023.
S Aurigae 1,940 [18] C-N5+
V1426 Cygni 1,975 [18] C7,2e

See also


Related Research Articles

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<span class="mw-page-title-main">WISE 1541−2250</span> Star in the constellation Libra

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<span class="mw-page-title-main">WISE 1828+2650</span> Rogue planet or brown dwarf in the constellation Lyra

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<span class="mw-page-title-main">WISEPC J205628.90+145953.3</span> Star in the constellation Delphinus

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<span class="mw-page-title-main">WISEPA J041022.71+150248.5</span> Brown dwarf in the constellation Taurus

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<span class="mw-page-title-main">WISEPA J173835.53+273258.9</span> Brown dwarf star in the constellation Hercules

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<span class="mw-page-title-main">WISE 1405+5534</span> Brown dwarf in the constellation Ursa Major

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<span class="mw-page-title-main">2MASS J21392676+0220226</span> Brown dwarf star in the constellation Aquarius

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<span class="mw-page-title-main">WISEPA J174124.26+255319.5</span> Star in the constellation Hercules

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<span class="mw-page-title-main">WISE 0359−5401</span> Star in the constellation Reticulum

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<span class="mw-page-title-main">WISE 0713−2917</span> Brown dwarf star in the constellation Canis Major

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<span class="mw-page-title-main">WISE J2209+2711</span>

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<span class="mw-page-title-main">Backyard Worlds</span> NASA-funded citizen science project

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<span class="mw-page-title-main">WISE 1534–1043</span> Brown dwarf in the constellation Libra

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<span class="mw-page-title-main">WISE J0336−0143</span> Binary brown dwarf system in the constellation Eridanus

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References

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  6. ↑ Bardalez Gagliuffi, Daniella C.; Faherty, Jacqueline K.; Schneider, Adam C.; Meisner, Aaron; Caselden, Dan; Colin, Guillaume; Goodman, Sam; Kirkpatrick, J. Davy; Kuchner, Marc; Gagné, Jonathan; Logsdon, Sarah E.; Burgasser, Adam J.; Allers, Katelyn; Debes, John; Wisniewski, John (2020-06-01). "WISEA J083011.95+283716.0: A Missing Link Planetary-mass Object". The Astrophysical Journal. 895 (2): 145. arXiv: 2004.12829 . Bibcode:2020ApJ...895..145B. doi: 10.3847/1538-4357/ab8d25 . ISSN   0004-637X.
  7. ↑ 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. arXiv: 1301.1669 . Bibcode:2013ApJ...764..101B. doi:10.1088/0004-637X/764/1/101. ISSN   0004-637X. S2CID   118575478.
  8. ↑ Cushing, Michael C.; Schneider, Adam C.; Kirkpatrick, J. Davy; Morley, Caroline V.; Marley, Mark S.; Gelino, Christopher R.; Mace, Gregory N.; Wright, Edward L.; Eisenhardt, Peter R.; Skrutskie, Michael F.; Marsh, Kenneth A. (2021-10-01). "An Improved Near-infrared Spectrum of the Archetype Y Dwarf WISEP J182831.08+265037.8". The Astrophysical Journal. 920 (1): 20. arXiv: 2107.00506 . Bibcode:2021ApJ...920...20C. doi: 10.3847/1538-4357/ac12cb . ISSN   0004-637X.
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  20. ↑ 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. arXiv: 1508.01767 . Bibcode:2015ApJ...810..158F. doi:10.1088/0004-637X/810/2/158. ISSN   1538-4357.
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