List of brown dwarfs

Last updated

This is a list of brown dwarfs. These are objects that have masses between heavy gas giants and low-mass stars. [1] The first isolated brown dwarf discovered was Teide 1 in 1995. [2] The first brown dwarf discovered orbiting a star was Gliese 229 B, also discovered in 1995. [3] The first brown dwarf found to have a planet was 2M1207, discovered in 2004. [4] As of 2015, more than 2,800 brown dwarfs have been identified. [5] An isolated object with less than about 13 Jupiter masses is technically a sub-brown dwarf or rogue planet.

Contents

Because the mass of a brown dwarf is between that of a planet and that of a star, they have also been called planetars or hyperjovians. Various catalog designations have been used to name brown dwarfs. Brown dwarfs with names ending in a letter such as B, C, or D are in orbit around a primary star; those with names ending in a lower-case letter such as b, c, or d, may be exoplanets (see Exoplanet naming convention).

Some exoplanets, especially those detected by radial velocity, can turn out to be brown dwarfs if their mass is higher than originally thought: most have only known minimum masses because the inclination of their orbit is not known. Examples include HD 114762 b (>11.68 MJ), Pi Mensae b (>10.312 MJ), and NGC 2423-3 b (>10.6 MJ).

A complete list of more than 3000 ultracool dwarfs, which includes brown dwarfs and low-mass stars, is being maintained by astronomers. It is called the UltracoolSheet. [6] The same team also produced a list of 1000 ultracool dwarfs with their mass being determined. [7]

Confirmed brown dwarfs orbiting primary stars

Sorted by increasing right ascension of the parent star. Brown dwarfs within a system sorted by increasing orbital period.

Some brown dwarfs listed could still be massive planets.

Star Constellation Right
ascension
Declination App.
mag.
Distance (ly) Spectral
type
Brown dwarf Mass
(MJ)
Radius
(RJ)
Orbital
period

(d)
Semimajor
axis

(AU)
Ecc. Discovery
year
54 Piscium Pisces 00h 39m 22s+21° 15 025.8836.1K0V+T7.5B45.96 ±4.05 [7] 0.85 [7] 4762006
81 Cancri Cancer 09h 12m 14.69s14°  59   39.66.7766G9V+L8 CD 8802001
AB Pictoris Pictor 06h 19s−58° 03 159.1666.6K2V+L1 b 13.52752005
CD−33°7795 Hydra 11h 31m 55s–34° 36 1711.37163.08M1+M9b201001998
HD 63754 Puppis 07h 49m 45s20° 12 276.55163.6G0V + L/Tb81.90.8626,79116.90.262024
CT Chamaeleontis Chamaeleon 11h 04m 09s–76° 27 1912.36538K7+M8b172.24402008
HD 984 Cetus 00h 14m 10.25s−07° 11 56.827

.32

149.1F7Vb611.57651,100280.762015
Eta Coronae Borealis Corona Borealis 15h 23m 22.6s30° 14 565.0258.3G2+G2+L8C44.00 ±6.46 [7] 0.95 [7] 36002010
G 196-3 Ursa Major 10h 04m 22s+50° 23 2311.7750.2M2.5+L3βb31.66 ±7.19 [7] 1.18 [7] 3001998
Gliese 570 Libra 14h 57m 28s−21° 24 565.6419.0K4V+
M1V+M3V
D32.54 ±6.01 [7] 0.93 [7] 15002000
GU Piscium Pisces 01h 12m 35.04s+17° 03 55.713.1155.3M3V+T3.5b1120002006
HD 89744 Ursa Major 10h 22m 10.56s+41° 13 46.315.74126.2F7IVB2000
HD 100546 Musca 11h 33m 25s–70° 11 416.70337.25B9Vneb206.5?2005
HN Pegasi Pegasus 21h 44m 28.46s+14° 46 7.858.3G0V+T2.5B17.06 ±6.9 [7] 1.14 [7] 7952006
LHS 4040  [ es ] Sculptor 23h 54m 9.28s-33°  16   26.620.7DA5.7+M8.5VC22002004
UScoCTIO 108 Scorpius 16h 05m 54s–18° 18 43473M7b146702007
HD 41004 B Pictor 05h 59m 50s–48° 14 2312.33139K1IV+M2 b 18.41.32830.01770.0812004
CoRoT-15 Monoceros 06h 28m 27.81s+6° 11 10.522F7V b 63.41.123.060360.04502010
Xi Ursae Majoris B Ursa Major 11h 18m 12s+31° 32 154.7325.11F8.5Vb373.980.0601931
Upsilon Andromedae Andromeda 01h 36m 48s+41° 24 204.6343.9F8V Samh 13.98237.70.8220.2241999
Gliese 758 Lyra 19h 23m 34s+33° 13 196.3651.9G8V+T9 B 2396212009
HD 112758 Virgo 12h 59m 03s–09° 50 037.5653.81K0Vb35103.220.350.161996
BD−04°782 Eridanus 04h 15m 10s–04° 25 069.3966.6K5Vb21240.920.70.281996
HD 110833 Canes Venatici 12h 44m 16s+51° 45 407.0455.44K3Vb17270.040.80.691996
HD 89707 Hydra 10h 20m 50s–15° 28 487.1981.54G1Vb54298.250.951991
Tau Geminorum Gemini 07h 11m 08s+30° 14 434.40302K2IIIb18.13052004
HAT-P-13 Ursa Major 08h 39m 32s+47° 21 0710.62698G4 c 15.2428.51.1860.6912009
HD 217580 Aquarius 23h 01m 52s–03° 50 557.4658.7K4Vb60454.6610.521994
HD 16760 Perseus 02h 42m 21s+38° 37 078.74163G5V b 14.3465.11.130.0672009
HD 13189 Triangulum 02h 09m 40s+32° 18 597.57603.4K2II b 14471.61.850.282005
HD 18445 Fornax 02h 57m 13s–24° 58 307.7883.92K2Vb39554.670.90.541991
HD 8673 Andromeda 01h 26m 09s+34° 34 476.31124.75F7Vb146391.582005
Gliese 569 Boötes 14h 54m 29s+16° 06 0410.231.5M3V+M8.5Ba + Bb116 [8] 870 [8] 0.87 [8] 0.317 [8] 1988 [9]
HD 29587 Perseus 04h 41m 34s+42° 07 257.29146.77G2Vb401471.72.50.371996
ChaHα8 Chamaeleon 11h 07m 48s−77° 40 0820.1522M6.5b181590.910.492007
CoRoT-20 Monoceros 06h 30m 55.3s+0° 13 3714.664000G2V c 1716752.90.62010
HD 168443 Serpens 18h 20m 04s–09° 35 346.92123.5G5c341739.52.870.2282001
HD 38529 A Orion 05h 46m 34s+01° 10 055.94138G4IVc372174.33.680.362002
Epsilon Indi Indus 22h 03m 22s–56° 47 094.6911.8K5V+T1V+T6V Bb 285478.752.652003
HW Virginis Virgo 12h 44m 20s−08° 40 1710.9590sdB+Mb19.2357865.300.462008
DT Virginis Virgo 13h 0m 41.74s12°  21   14.79.7237.55M0V+T8.5pc10.29 ±2.46 [7] 1.15 [7] 3308111002010
HD 4113 Sculptor 00h 43m 12.60s−37° 58 57.487.88136G5V+T9C6073000202006
Gliese 229 Lepus 06h 10m 35s–21° 51 428.1419M1V+T6.5B4073050401995
TYC 9486-927-1 Octans 21h 26m 50.4s-81° 40 29.311.82111M1V+L3γ 2MASS J2126-8140 13.3 ± 1.732872500069002009
Epsilon Indi Indus 22h 03m 22s–56° 47 094.6911.8K5V+T1V+T6V Ba 471532899.82003
HD 131664 Apus 15h 00m 06s−73° 32 078.13180.8G3Vb18.1519513.170.6382008
HD 136118 Serpens 15h 18m 55s−01° 35 326.94171F9V b 4212091.450.3522002
HD 140913 Corona Borealis 15h 45m 07s+28° 28 128.07156.42G0Vb46147.940.540.611996
GQ Lupi b Lupus 15h 49m 12s–35° 39 0311.4400K7eV+M9e b 1–421.81032005
HD 162020 Scorpius 17h 50m 38s–40° 19 069.18101.95K2V b 15.08.4281980.07510.2772000
Nu Ophiuchi Ophiuchus 17h 59m 01s−09° 46 253.33152.8K0IIIb21.95360.132004
HD 164427 Telescopium 18h 04m 43s−59° 12 356.89127.52G4IV b 46108.550.460.552000
SCR 1845-6357 Pavo 18h 45m 07s−63° 57 4317.412.57M8.5VB40-504.12006
COROT-3 Aquila 19h 28m 13s+00° 07 1913.32220G0V b 21.661.014.25680.05702008
V921 Scorpii [10] Scorpius 16h 59m 07.0s−42° 42 09.011.04833B0IVe b 608352019
15 Sagittae Sagitta 20h 04m 06s+17° 04 135.8057.7G1V+L4-5B65142002
Zeta Delphini Delphinus 20h 35m 19s+14° 40 274.65220A3V+L5B559102014
HD 202206 Capricornus 21h 14m 58s–20° 47 208.08151.14G6Vb17.4255.870.830.4352000
Koenigstuhl1 [7] [11] Phoenix00h 21m 10.74s–42° 45 40.215.387.4M5.5V+L0.6VB51.88 ±3.61.182083.41998
HD 12051 [7] [12] Triangulum01h 59m 06.63s+33° 12 34.97.9280.6G9V+L6B72.25 ±1.060.8913002014
HD 65486 [7] [13] Puppis07h 58m 04.37s−25° 37 35.98.460.2K4V+T4.5B28.94 ±8.81.0116302012
LP 261–75 [7] [14] Leo Minor09h 51m 04.58s+35° 58 09.516.1110.9M:+L6B15.06 ±2.581.258202000/2005
LP 738–14 [7] [15] Virgo13h 48m 07.28s−13° 44 31.615.159.3M4.5+T5.5B55.9 ±5.760.8314002012
HD 126053 [7] [16] Virgo14h 23m 15.28s+01° 14 29.66.356.9G1+T8pB34.29 ±18.380.9126302012
47 Ophiuchi [7] [12] Ophiuchus17h 26m 37.88s−05° 05 11.84.5105.3F3+L5.5B69.66 ±0.880.9388502014
G 67–32 [7] [12] Pegasus22h 54m 28.27s+22° 03 04.514.9127.2M2+L5.5B67.03 ±11.710.914322014
PM J23492+3458 [7] [12] Andromeda23h 49m 17.78s+34° 58 44.712.699.8M2+L9B64.21 ±12.290.919492014
Wolf 1130 Cygnus20h 05m 02.20s+54° 26 03.213.954.1sdM3+ONe+sdT8C44.90.8231502013
L 26-16 [17] Octans00h 03m 18.46s−75° 33 21.011.7141.4M0V+T4B52–7321992024
2MASS J00103250+1715490 [17] Pegasus00h 10m 32.46s+17° 15 48.918.2133.3M8V+T5.5B50–657392024
UCAC3 52–1038 [17] Tucana00h 31m 23.77s−64° 13 59.213.1108.0M2V+T6B43–6471392024
LP 712–16 [17] Eridanus03h 12m 14.52s−08° 45 45.813.8120.1M4V+T6B47–656232024
UCAC3 40–6918 [17] Hydrus03h 28m 08.35s−70° 01 40.713.170.8M3V+T8B15–4615492024
CWISE J054129.32–745021.5 [17] Mensa05h 41m 29.26s−74° 50 23.415.0254.0M4V+T8B1.8–1665762024
SCR J0959–3007 [17] Antila09h 59m 00.57s−30° 07 44.214.899.8M5V+T5B<3511652024
UCAC4 307–069397 [17] Hydra13h 00m 02.01s−28° 43 29.512.689.5M4V+T6B47–646012024
LP 270–10 [17] Canes Venatici13h 53m 46.54s+38° 04 23.112.8112.2M2V+T6.5B40–6017502024
LP 81–30 [17] Bootes14h 16m 11.37s+23° 23 29.211.189.2M2V+T7B35–5515122024
G135–35 [17] Bootes14h 17m 40.11s+20° 56 38.812.490.1M3V+T3B70–7641922024
UCAC3 113–933 [18] Sculptor00h 21m 06.05s−33° 48 10.612.5171.5M0+T1B2161002024
2MASS J00215427–4514590 [18] Phoenix00h 21m 54.27s−45° 14 59.315.5176.7M5+T3B3129002024
UCAC4 204–003910 [18] Horologium04h 03m 53.61s−49° 16 28.412.8136.5M2+T7B3114002024
G 194–47 [18] Ursa Major08h 59m 35.89s+53° 43 50.413.358.5M3.5+M3.5+T9C3157002024
StKM 1–760 + LP 369–22 [18] Cancer09h 16m 22.77s+25° 39 49.611.1158.3K6+DZ+T5C31270002024
WISEA J091900.48–574847.1 [18] Carina09h 19m 00.42s−57° 48 45.814.1136.9M4+T2B318102024
2MASS J09530410–5055203 [18] Vela09h 53m 04.10s−50° 55 20.415.291.6M6+T2B3121002024
UPM J1040–3551 [18] Antila10h 40m 55.49s−35° 51 31.114.682.5M3.8+T7B3117002024
2MASS J14395174+2559447 [18] Bootes14h 39m 51.73s+25° 59 44.415.5134.2M3+T3B316402024
HD 170573 [18] Telescopium18h 33m 05.08s−54° 15 47.58.562.4K4.5Vk+T7B31120002024
HD 188769 + DENIS J200057.2–644827 [18] Pavo20h 01m 00.91s−64° 48 28.56.8159.9F3IV+M5+T5C31250002024
BD+24 4329 [18] Vulpecula21h 08m 01.90s+25° 10 34.411.0111.3K6V+T2B31380002024
LSPM J2214+2534 [18] Pegasus22h 14m 17.69s+25° 34 06.415.7134.5M4.3+M4.3+L9C3112002024
LP 933–24 [18] Piscis Austrinus22h 55m 43.86s−30° 22 39.011.7117.4M1+M5+T8C3190002024
CD–24 407 [18] Cetus00h 56m 36.11s−24° 02 17.810.0220.5K2+L8B5269002024
LP 466–214 [18] Pisces01h 04m 27.99s+13° 37 16.720.3208.7M4.5+L8B52100002024
LP 883–372 [18] Sculptor01h 27m 17.25s−30° 03 31.613.7161.6M3+T0B5225002024
BPS CS 22963–0014 [18] Eridanus03h 00m 09.68s−06° 22 02.212.1218.9K7+L9B5242002024
LSPM J0407+1911 [18] Taurus04h 07m 21.97s+19° 11 38.615.2173.8M4+M4+T1C52160002024
LP 961–51 [18] Hydra11h 52m 35.61s−35° 09 43.413.0152.5M3+T0B5253002024
NLTT 35024 [18] Bootes13h 43m 38.80s+08° 25 43.519.485.2M5.5+T0B52240002024
CWISE J165141.67+695306.6 [18] Draco16h 51m 41.67s+69° 53 06.620.6184.3L0.5+T1B527002024
LEHPM 5083 [18] Grus22h 44m 48.22s−36° 28 45.814.2172.9M4+T1B5239002024
TYC 8025–428–1 [18] Phoenix00h 00m 15.74s−48° 12 58.010.2285.6G5+L4B6350002024
WT 5 [18] Phoenix00h 24m 19.94s−40° 31 33.316.0174.8M4.5+M4.5+L5C6342002024
CD–26 134 [18] Sculptor00h 26m 57.25s−26° 08 34.311.5285.9K2+L5B6326002024
TYC 1744–123–1 [18] Andromeda00h 42m 25.57s+29° 18 17.711.8223.2K7+L5B6371002024
LAMOST J004950.95+423653.6 [18] Andromeda00h 49m 50.95s+42° 36 53.6183.5M4+L6B6339002024
CWISE J013716.34+342352.7 [18] Triangulum01h 37m 16.34s+34° 23 52.713.5201.1M3+L6B63180002024
G 73–59 [18] Cetus02h 27m 36.67s+08° 29 59.115.7110.3M3+L5(blue)B635502024
HD 40781 [18] Columba05h 59m 13.38s−38° 42 38.08.4197.8G0+L4B6333002024
CWISE J061959.56+344631.3 [18] Auriga06h 19m 59.56s+34° 46 31.314.3119.6M4+L4B634202024
CWISE J062911.12+395632.8 [18] Auriga06h 29m 11.12s39° 56 32.814.0199.6M4+L5B6322002024
HD 51400 [18] Gemini06h 57m 50.00s+16° 34 42.98.2120.9G5+L6βB6323002024
LSPM J0738+5254 [18] Lynx07h 38m 32.54s+52° 54 54.414.5153.4M3+L4(red)B635302024
LP 17–276 [18] Camelopardalis08h 09m 23.01s+74° 23 46.415.2138.2M5+L6B63170002024
TYC 8927–2833–1 [18] Carina08h 51m 35.28s−60° 29 24.010.8100.9K7+L3B6329002024
CWISE J101533.05–111501.0 [18] Sextans10h 15m 33.05s−11° 15 01.0136.2M5+M5+L5βC6358002024
CWISE J133211.59–374953.3 [18] Centaurus13h 32m 11.59s−37° 49 53.317.9238.8M7+L5B6355002024
CWISE J144058.48+380422.1 [18] Bootes14h 40m 58.48s+38° 04 22.117.6291.2M4.5+L4B6312002024
CWISE J160653.16–103210.6 [18] Scorpius16h 06m 53.16s−10° 32 10.617.7132.5M9+L7(blue)B636402024
UCAC4 840–013771 [18] Ursa Minor16h 24m 18.57s+77° 54 08.814.9193.8M2+L2B63190002024
BD+49 2561 [18] Hercules16h 53m 22.51s+49° 05 28.110.1186.1K2+M2+L5C6330002024
StKM 1–1526 [18] Hercules17h 45m 13.98s+38° 07 00.010.4186.6K5+M4+L4βC6339002024
LP 754–21 [18] Capricornus20h 08m 16.06s−12° 46 13.513.7188.7M1+L7B6348002024
LSPM J2052+0539 [18] Delphinus20h 52m 46.70s+05° 39 09.216.8194.1M3+L7B637902024
WISEA J231825.63+052141.6 [18] Pisces23h 18m 25.68s+05° 21 42.815.6228.6M4+L4B6311002024
CWISE J025638.42–335454.9 [18] Fornax02h 56m 38.42s−33° 54 54.912.8188.5M2+L2B73170002024
CWISE J032852.72–112345.6 [18] Eridanus03h 28m 52.72s−11° 23 45.6348.5M4+L2B7317002024
LAMOST J062631.15+593341.3 [18] Lynx06h 26m 31.33s+59° 33 43.515.3180.3M1+L3(blue)C73270002024
2MASS J09435055+3356550 [18] Leo Minor09h 43m 50.55s+33° 56 55.0215.9M3+L2(red)B7318002024
LP 670–45 [18] Sextans10h 37m 32.49s−05° 07 51.116.5294.9M3+L3B7327002024
2MASS J13032992+5127582 [18] Canes Venatici13h 03m 29.92s+51° 27 58.218.3152.3M8+L2(red)B732402024
LP 378–789 [18] Coma Berenices13h 13m 57.05s+22° 30 07.520.4218.5M7+L3B7319002024
LP 677–81 [18] Virgo13h 28m 56.30s−06° 37 44.315.6244.9M3+L3(blue)B7314002024
WISEA J143934.77–804838.8 [18] Apus14h 39m 35.25s−80° 48 38.414.6171.6M4+L2B736802024
SCR J2029–7910 [18] Octans20h 29m 45.51s−79° 10 06.417.6162.1M6(blue)+L1(blue)B7317002024
TYC 5213–545–1 [18] Aquarius21h 41m 24.84s−02° 47 47.010.9257.6K0+L4(sl. red)B7390002024

Confirmed brown dwarf orbiting stellar remnants

A stellar remnant can be for example a white dwarf, a pulsar or a black hole. Objects with a mass of a brown dwarf, but with a history of mass-transfer might not be brown dwarfs. If they exist as a period bouncer around a white dwarf they are thought to once have been stars and are today "brown dwarf-like objects". [19] Objects around black widow pulsars on the other hand are thought to be white dwarfs that lost mass to the pulsar and therefore will differ in composition and density compared to brown dwarfs. [20] This list is sorted after the discovery year.

Star Constellation Right
ascension
Declination App.
mag.
Distance (ly) Spectral
type
Brown dwarf Mass
(MJ)
Radius
(RJ)
Orbital
period

(d)
Semimajor
axis

(AU)
Ecc. Discovery
year
GD 165 Boötes 14h 24m 39.144s9° 17 13.9814.6103D4A+L4B76.12 ±1.04 [7] 0.91 [7] 1231988
GD 1400 [21] [22] Cetus01h 47m 21.82s−21° 56 51.3915.2151DA+L5.5B68 ±80.4160.0092004
WD 0137-349 Sculptor 01h 39m 43s−34° 42 3915.33330DA+L8B530.08030.003002006
PHL 5038 Aquarius22h 20m 30.70s−00° 41 07.517.3240DAZ+L8-9B73662006
SDSS 1035 (mass transfer) [23] Sextans10h 35m 33.03s+05° 51 58.418.8637B54 ±20.0570.00292006
OV Boötis (SDSS J1507, mass transfer) [24] Boötes15h 07m 22.30s+52° 30 39.818.5692DA+>M9B59 ±10.0460.00252007
SDSS 1501 (mass transfer) [25] Draco15h 01m 37.21s+55° 01 23.2818.81000B56 ±30.05680.00272008
LSPM J1459+0851 [26] Boötes14h 59m 32.07s+08° 51 25.8618.8242DA+T4.5B67-7916,500-26,5002011
SDSS J08205+0008 [27] Hydra08h 20m 53.54s+00° 08 43.5015.25000sdBB64-740•.09620.00332011
WD 0837+185 [28] Cancer08h 40m 13.30s+18° 43 26.3718.2636B25-300.1750.0062012
NLTT 5306 [29] [30] Pisces01h 35m 32.98s+14° 45 55.9016.6258DA+L3−L5B52 ±30.070.0022013
SDSS J141126+200911 [31] [32] Boötes14h 11m 26.22s+20° 09 11.0417.9577DA+L7-T1B52 ±20.0032013/2014
LSPM J0241+2553 [7] [12] Aries02h 41m 49.28s+25° 53 44.618.8248.8WD?+L1B52.30 ±27.441.1121532014
PHL 1445 (mass transfer) [33] Cetus02h 42m 42.91s−11° 46 45.1017.9782B67 ±50.0530.00262015
V2008-1753 [34] Capricornus20h 08m 16.34s−17° 53 10.6317.18000sdBB72 ±50.06580.00262015
SDSS J1433 (mass transfer) [25] [35] Boötes14h 33m 17.79s+10° 11 23.4918.9760WD+L1B58 ±80.0542008/2016
SDSS 1557 Serpens15h 57m 20.77s+09° 16 24.618.6500DAZ+L4B66+5
−7
0.0950.0032011/2017
HS 2231+2441 [36] Pegasus22h 34m 21.48s+24° 56 57.3914.23000sdB or WDB38 or 480.110.0027 or 0.00312017
SDSS J1205-0242 [37] Virgo12h 05m 15.81s−02° 42 22.7518.42169DA+L0B51 ±60.0490.0022017
SDSS J1057+2759 (mass transfer) [38] Leo Minor10h 57m 54.25s+27° 59 47.519.51100B46 ±0.06280.00292017
EPIC 212235321 [39] Aquarius22h 03m 40.60s−12° 15 11.9417.51280DAZ+L3B580.0470.0022018
QZ Librae (mass transfer) [40] Libra15h 36m 15.98s−08° 39 07.5218.8649WD+T?B25-610.0642018
WD 1032+011 [41] Sextans10h 34m 48.93s+00° 52 01.3719.21019DA+L5B70 ±60.09160.0032020
COCONUTS–1 [42] Perseus03h 55m 56.50s+45° 25 10.317.2102.6DA+T4B65.9–70.912802020
LSPM J0055+5948 [43] Cassiopeia00h 55m 58.30s+59° 48 02.516.874.5DC+T8B56 ±94022020
ZTF J0038+2030 [44] Pisces00h 38m 55.00s+20° 30 26.1517.7753B62 ±40.4320.0092021
Gaia 0007−1605A [45] Cetus00h 07m 34.82s−16° 05 31.6116.0264DA+L3C731.04460.0172019/2022
NSC J0532-5124 [46] Pictor05h 32m 32.31s−51° 24 50.7520.0551WD+L3B765082022
NSC J1305-2247 [46] Hydra13h 05m 27.23s−22° 47 28.4420.5469WD+L3B767162022
BW Sculptoris (mass transfer) [19] Sculptor23h 53m 00.87s−38° 51 46.6616.5305D+TB53.4 ±6.30.0540.00271997/2023
SDSS J22255+0016 [47] Aquarius22h 25m 51.65s+00° 16 37.718.8711DA+L4B25–53692023
UCAC4 328–061594 [18] Hydra10h 10m 47.91s−24° 27 10.915.2129.5DC+T6B2119,0002024
WD J060159.98–462534.40 [18] Pictor06h 01m 59.98s−46° 25 34.418.6182.9WD+L8B5229002024
WD J212231.86+660043.69 [18] Cephus21h 22m 31.86s+66° 00 43.715.9176.0WD+T5B6328,0002024
WD J011001.84–592642.22 [18] Tucana01h 10m 01.84s−59° 26 42.220.6358.0WD+L2B7317002024

Unconfirmed brown dwarfs

Sorted by increasing right ascension of the parent star. Brown dwarfs within a system sorted by increasing orbital period.

Some brown dwarfs listed could still be massive planets.

Star Constellation Right
ascension
Declination App.
mag.
Distance (ly) Spectral
type
Brown dwarf Mass
(MJ)
Radius
(RJ)
Orbital
period

(d)
Semimajor
axis

(AU)
Ecc. Discovery year
OGLE-TR-109 Carina 10h 53m 41s–61° 25 1515.88450b<140.90.5891280.0162002
RU Lupi Lupus 15h 56m 42s–37° 49 1610.5400G5V:eb≥273.710.0410.412007
CM Draconis Draco 16h 34m 27s+57° 09 0012.9048M4b64730.271998
BD+20°2457 Leo 10h 16m 45s+19° 53 299.75652K2II b 21.42379.631.450.152009
HD 3346 Andromeda 00h 36m 46s+44° 29 195.16655.58K5IIIc606502.51996
HD 104304 Virgo 12h 00m 44s−10° 26 465.5442.1G9b17.227520.382007
HD 154857 Ara 17h 11m 16s−56° 40 517.25220G5V c 18.42900>0.252007
Gliese 22 B Cassiopeia 00h 32m 27s+67° 14 0910.38326M2.5Vb16~550002008

Field brown dwarfs

Data updated from [48] [49] [50] and merged from previous tables

Brown dwarf Constellation Right
ascension
Declination App.
mag.
Distance (ly) Spectral
type
Mass
(MJ)
Radius
(RJ)
Discovery
year
SDSS J000013.54+255418.6  [ de ] Pegasus 0h 0m 13.54s25° 54 1846.1T4.5480.992004
2MASS J00040288-6410358 Tucana 0h 4m 2.88s−64° 10 35.8192L1γ191.63
LHS 102BC Phoenix 0h 4m 34.84s−40° 44 5.8L52002
2MASS J00242463-0158201 Pisces 0h 24m 24.63s−1° 58 20.137.7M9.5791.09
2MASS J00250365+4759191AB Cassiopeia 0h 25m 3.65s47° 59 19.1143L4
2MASS J00274197+0503417 Pisces 0h 27m 41.97s5° 3 41.7236M9.5β311.44
2MASS J00275592+2219328 Andromeda 0h 27m 55.92s22° 19 32.846.9M8
2MASSW J0030300-145033 Cetus 0h 30m 30.13s−14° 50 33.387.2L7540.98n/a
2MASS J00332386-1521309  [ de ] Cetus 0h 33m 23.86s−15° 21 131L1-L4β291.43n/a
2MASS J00345157+0523050 Pisces 0h 34m 51.57s5° 23 531T6.5420.94n/a
2MASS 0036+1821 Pisces 0h 36m 16.17s18° 21 10.412.4728.6L3.5420.942000
2MASSW J0045214+163445 Pisces 0h 45m 21.43s16° 34 44.657L2β231.62n/a
WISEP J004701.06+680352.1  [ fr ] Cassiopeia 0h 47m 0.38s68° 3 54.340L7.5p121.3n/a
2MASS J00501994-3322402  [ de ] Sculptor 0h 50m 19.94s−33° 22 40.234T7400.94n/a
2MASS J00034227-2822410 Sculptor 0h 55m 39.72s−28° 22 42M7.5n/a
2MASS J00584253-0651239  [ de ] Cetus 0h 58m 42.53s−6° 51 23.996L0β291.43n/a
CFBDS J005910.90–011401.3 Cetus 0h 59m 10.83s−1° 14 1.318.0830T8.5232013
2MASSI J0103320+193536 Pisces 1h 3m 32.03s19°  3570L6β520.98
SDSSp J010752.33+004156.1  [ de ] Cetus 1h 7m 52.42s−0° 41 56.351L8520.98
2MASSI J0117474-340325  [ de ] Sculptor 1h 17m 47.48s−34° 3 25.8163L2:201.62
2MASS J01415823-4633574  [ de ] Phoenix 1h 41m 58.23s−46° 33 57.4130L0γ201.61
SDSS J015141.69+124429.6 Aries 1h 51m 41.55s12° 44 3070T1470.97
DENIS-P J020529.0−115925A Cetus 2h 5m 29.401s−11° 59 29.6765L5.51997
DENIS-P J020529.0−115925B Cetus 2h 5m 29.401s−11° 59 29.6765L81997
DENIS-P J020529.0−115925C Cetus 2h 5m 29.401s−11° 59 29.6765T01997
SDSS J020742.48+000056.2  [ de ] Cetus 2h 7m 42.84s−0° 0 56.4111T4.5470.97n/a
2MASS J02103857-3015313 Fornax 2h 10m 38.57s−30° 15 31.3101L0γ151.53n/a
2MASS J02340093-6442068 Horologium 2h 34m 0.93s−64° 42 6.8155L0γ201.62n/a
2MASS J02411151-0326587  [ de ] Cetus 2h 41m 11.51s−3° 26 58.7152L0γ271.41n/a
2MASS J02431371−2453298 Fornax 2h 43m 13.71s−24° 53 29.835T6330.992002
LP 771-212h 48m 41s−16° 51 21.653M8781.08n/a
2MASS J02511327+0047364 Cetus 2h 51m 13.27s−0° 47 36.4M8n/a
2MASS J02535980+3206373 Perseus 2h 53m 59.8s32° 6 37.3184M7β651.9n/a
WISE J0254+0223 Cetus 2h 54m 9.45s2° 23 59.116.0124T8651.9n/a
DEN 0255-4700 Eridanus 2h 55m 3.57s−47° 0 50.922.9216.2L8800.972006
2MASS J03185403-3421292  [ de ] Fornax 3h 18m 54.03s−34° 21 29.245L7490.972008
2MASS J03205965+1854233 Aries 3h 20m 59.65s18° 54 23.347M8881.15n/a
2MASS J03231002-4631237 Horologium 3h 23m 10.02s−46° 31 23.7192L0γ231.66n/a
SDSS J032553.17+042540.1 Taurus 3h 25m 53.22s4° 25 40.659T5.5450.95n/a
2MASS J03264225-2102057  [ de ] Eridanus 3h 26m 42.25s−21° 2 5.780L5γ181.32003
2MASS J03284265+2302051  [ de ] Taurus 3h 28m 42.65s23° 2 5.198L8540.982000
2MASS J03341218-49533223h 34m 12.18s−49° 53 32.227.0M9731.04n/a
LP 944-20 Fornax 3h 39m 35.22s−35° 25 4410.72520.9M9β731.43n/a
2MASP J0345432+254023 3h 45m 43.16s25° 40 23.388L0741.051997
Teide 1 Taurus 3h 47m 18s+24° 22 31380M8553.781995
2MASS J03510004-00524523h 51m 0.04s−0° 52 45.248M81021.27n/a
2MASS J03552337+1133437 Taurus 3h 55m 23.37s11° 33 43.714.0529.8L5γ201.322006
DENIS-P J035726.9-441730  [ de ] Horologium 3h 57m 26.95s−44° 17 30.514.37130L0βn/a
2MASS J04151954−0935066 Eridanus 4h 15m 19.54s−9° 35 6.615.718.6T8300.952002
SDSSp J042348.57-041403.5  [ de ] Eridanus 4h 23m 48.58s−4° 14 3.514.550L7.52002
2MASS J04285096-2253227  [ de ] Eridanus 4h 28m 50.96s−22° 53 22.785L0.5801.092003
2MASS J04351612-16065744h 35m 16.13s−16° 6 57.534M71001.26n/a
2MASS J04362788-41144654h 36m 27.88s−41° 14 46.5142M8βγ391.97n/a
2MASS J04390101-2353083  [ de ] Eridanus 4h 39m 1.01s−23° 53 8.329.5L6.5480.972003
2MASS J04414489+2301513 4h 41m 44.9s23° 1 58.07470M8.5192010
2MASS J04433764+00020404h 43m 37.61s−0° 2 5.182M9γ221.78n/a
2MASS J04455387-3048204  [ de ] Caelum 4h 45m 53.87s−30° 48 20.442L2641.002003
2MASS J04510093-3402150  [ de ] Caelum 4h 51m 0.93s−34° 2 1569L0.5721.042003
2MASS J05002100+0330501  [ de ] Orion 5h 0m 21s3° 30 50.144L4641.002008
2MASS J05012406-0010452  [ de ] Orion 5h 1m 24.06s−0° 10 45.264L4γ211.382008
2MASS J05160945-0445499  [ de ] Orion 5h 16m 9.45s−4° 45 49.973T5.5470.972003
2MASS J0523−1403 Lepus 5h 23m 38.22s−14° 3 2.240L2.5681.01n/a
2MASS 0532+8246 Camelopardalis 5h 32m 53.46s82° 46 46.581L7832018
SDSS J053951.99-005902.05h 39m 52s−0° 59 1.921.0541.62L5611.01n/a
2MASS J05591914-1404488  [ de ] Lepus 5h 59m 19.14s−14° 4 48.834T4.52000
LSR 0602+3910  [ de ] Auriga 6h 2m 30.45s39° 10 59.220.8834.6L1β281.412003
2MASS J06085283-27535836h 8m 52.83s−27° 53 58.3102M8.5γ381.51n/a
WISEP J061135.13-041024.0A6h 11m 35.12s−4° 10 2469L9652014
WISEP J061135.13-041024.0B6h 11m 35.12s−4° 10 2469T1.5532014
2MASS J06244595-4521548  [ de ] Puppis 6h 24m 45.95s−45° 21 54.839L5560.992008
2MASS J06411840-4322329  [ de ] Puppis 6h 41m 18.4s−43° 22 32.965L1.5671.012008
DENIS-P J0652197-253450  [ de ] Canis Major 6h 52m 19.77s−25° 34 50.551L0751.052008
2MASS J07003664+3157266  [ de ] Gemini 7h 0m 36.64s31° 57 26.640L3.5:2003
2MASS J07075327-49005037h 7m 53.27s−49° 0 50.360M9721.03n/a
UGPS J072227.51-054031.2 Monoceros 7h 22m 27.6s−05° 40 38.413.4T9260.982010
2MASSI J0727182+171001  [ de ] Gemini 7h 27m 18.24s17° 10 1.229.6T7410.942002
2MASS J07290002-3954043  [ de ] Puppis 7h 29m 0.02s−39° 54 4.425.8T8 pec370.942007
SDSS J074201.41+205520.5  [ de ] Gemini 7h 42m 1.3s20° 55 19.849T5430.942004
2MASS J0746425+200032  [ fr ] Gemini 7h 46m 42.56s20° 0 32.149.6L0.51999
DENIS-P J0751164-253043  [ de ] Puppis 7h 51m 16.45s−25° 30 43.255L2.5711.032008
2MASS J07522390+16121577h 52m 23.9s16° 12 15.760M7βγ682.01
DENIS J081730.0-615520 Carina 8h 17m 30.01s−61° 55 15.813.616.1T6440.942010
DENIS J082303.1−491201A Vela 8h 23m 3.13s−49° 12 1.367L1.5442006
DENIS J082303.1−491201B Vela 8h 23m 3.13s−49° 12 1.367L5.5282006
2MASS J08251968+2115521  [ de ] Cancer 8h 25m 19.68s21° 15 52.135L7.5520.982000
SDSSp J083008.12+482847.4  [ de ] Lynx 8h 30m 8.25s48° 28 48.243L8480.992002
LHS 20218h 30m 32.56s9° 47 15.455M6.5881.15
SDSS J083048.80+012831.1  [ de ] Hydra 8h 30m 48.78s1° 28 31.177T4.5460.962004
2MASSI J0835425-081923  [ de ] Hydra 8h 35m 42.56s−8° 19 23.723.53L5621.002003
2MASSI J0847287-153237  [ de ] Hydra 8h 47m 28.72s−15° 32 37.243L2641.002003
2MASS J08533619-03293218h 53m 36.19s−3° 29 32.127.6M9771.07
2MASSI J0859254-194926  [ de ] Pyxis 8h 59m 25.47s−19° 49 26.850L6500.982003
2MASSW J0920122+351742  [ de ] Lynx 9h 20m 12.23s35° 17 42.995L6.52000
2MASSI J0937347+293142 Leo 9h 37m 34.87s29° 31 40.920.0T6p420.942002
2MASS 0939−2448 Antlia 9h 39m 35.48s−24° 48 27.916.8317.4T8320.952005
2MASS J09490860-1545485  [ de ] Hydra 9h 49m 8.6s−15° 45 48.559T2490.962005
2MASS J10073369-455514710h 7m 33.69s−45° 55 14.746T5440.94
2MASSI J1010148-040649  [ de ] Sextans 10h 10m 14.8s−4° 6 49.955L6510.982003
2MASSI J1017075+130839  [ de ] Leo 10h 17m 7.54s13° 8 39.817.4108L2:2003
SDSS J102109.69-030420.110h 21m 9.69s−3° 4 19.795T3
2MASS J10224821+5825453  [ de ] Ursa Major 10h 22m 48.21s58° 25 45.360L1β271.412008
2MASSW J1036530-344138  [ de ] Antlia 10h 36m 53.05s−34° 41 3853L6490.972002
2MASS J1047538+212423  [ de ] Leo 10h 47m 53.85s21° 24 23.415.834.4T6.5420.941999
Luhman 16B Vela 10h 49m 18.91s−53° 19 106.516T1431.022013
Luhman 16A Vela 10h 49m 18.91s−53° 19 106.516L8401.012013
DENIS-P J1058.7−1548 Crater 10h 58m 47.87s−15° 48 17.214.15549L3641.001997
TWA 2811h 2m 9.83s−34° 30 35.5180M8.5γ362.39
Cha 110913-773444 Chamaeleon 11h 9m 14s–77° 34 4521.59163L81.82005
OTS 44 Chamaeleon 11h 10m 12s–76° 32 13554M9.5V152005
SDSS J111010.01+011613.111h 10m 10.01s1° 16 1363T5.5p91.24
2MASS J11145133−2618235 Hydra 11h 14m 51.33s−26° 18 23.515.8618.2T7.5330.962005
TWA 2611h 39m 51.14s−31° 59 21.5137M9γ302.20
2MASSW J1146345+22305311h 46m 34.49s22° 30 52.789L3
2MASS J11544223-3400390  [ de ] Hydra 11h 54m 42.23s−34° 0 3914.2129L0β371.502003
2MASSW J1155395-372735  [ de ] Centaurus 11h 55m 39.52s−37° 27 3512.831L2641.002002
TWA 27A12h 7m 33.46s−39° 32 54M8
TWA 27B12h 7m 33.5s−39° 32 54.4M8γ
2MASS J12074836-390004312h 7m 48.36s−39° 0 4.4217L0γ171.71n/a
2MASSI J1217110-031113  [ de ] Virgo 12h 17m 11.1s−3° 11 13.115.8636T7.5420.941999
2MASS J12255432-273946612h 25m 54.32s−27° 39 46.643T6n/a
DENIS-P J1228.2-1547 Corvus 12h 28m 15.23s−15° 47 34.214.3866L51999
2M 1237+6526 Draco 12h 37m 39.19s65° 26 14.816.0545.6T6.5410.942003
2MASSW J1239272+551537  [ de ] Ursa Major 12h 39m 27.27s55° 15 37.114.7119L52000
TWA 2912h 45m 14.16s−44° 29 7.7262M9.5252.00n/a
SDSSp J125453.90-012247.4  [ de ] Virgo 12h 54m 53.93s−1° 22 47.414.938T2470.982000
Kelu-1A Hydra 13h 5m 40.2s−25° 41 661L2630.981997
Kelu-1B Hydra 13h 5m 40.2s−25° 41 661L4580.981997
2MASS J13204427+040904513h 20m 44.27s4° 9 4.5101L3:671.01n/a
SDSSp J132629.82-003831.5  [ de ] Virgo 13h 26m 29.81s−0° 38 31.416.165L8:510.972000
SDSSp J134646.45-003150.4  [ de ] Virgo 13h 46m 46.34s−0° 31 50.11648T6.5440.942000
2MASS J13595510-403458213h 59m 55.1s−40° 34 58.251L1631.00n/a
ULAS J141623.94+134836.314h 16m 23.94s13° 48 36.329.7T7.5p320.96n/a
SDSS J141659.78+500626.4  [ de ] Boötes 14h 16m 59.86s50° 6 25.822149L4.5590.992006
DENIS-P J142527.97-365023.4  [ de ] Centaurus 14h 25m 27.98s−36° 50 22.91438L3:211.322004
LHS 2924 Boötes 14h 28m 43.23s+33° 10 39.119.7438.5M9V761.06
2MASS J14392837+192915014h 39m 28.36s19° 29 14.947L1721.03n/a
LSPM J1440+133914h 40m 22.93s13° 39 2372M8921.19n/a
2MASS J14482563+1031590  [ de ] Boötes 14h 48m 25.63s10° 31 591547L4:590.992003
CFBDSIR 1458+10A Boötes 14h 58m 29.0s+10° 13 4319.83104T911.11.52010
CFBDSIR 1458+10B Boötes 14h 58m 29.0s+10° 13 4321.85104Y091.32010
TVLM 513-46546 Boötes 15h 1m 8.18s+22° 50 215.0935.1M8.5V751.05n/a
2MASS 1503+2525 Boötes 15h 3m 19.61s25° 25 19.620.7T5440.942003
CFBDS J150411+10271715h 4m 11.64s10° 27 18.471T7440.94n/a
2MASSW J1506544+132106  [ de ] Boötes 15h 6m 54.41s13° 21 61346L3691.022000
2MASS 1507−1627 Libra 15h 7m 47.69s−16° 27 38.61923.9L5600.992000
TVLM 868-11063915h 10m 16.85s−2° 41 7.853M9791.08n/a
SDSS J151114.66+060742.9  [ de ] Serpens 15h 11m 14.66s6° 7 43.12589T22006
2MASSW J1515008+484742  [ de ] Boötes 15h 15m 0.83s48° 47 41.61434L6570.992003
2MASSI J1526140+204341  [ de ] Serpens 15h 26m 14.05s20° 43 41.41667L7540.982000
DENIS-P J153941.96-052042.4  [ de ] Libra 15h 39m 41.89s−5° 20 42.81451L4631.002004
2MASS J15462718-3325111  [ de ] Lupus 15h 46m 27.19s−33° 25 11.21637T5.5440.942002
2MASSW J1552591+294849  [ de ] Corona Borealis 15h 52m 59.06s29° 48 48.51368L0β301.432003
2MASSW J1555157-095605  [ de ] Libra 15h 55m 15.73s−9° 56 5.51344L1711.032002
2MASS J16150413+1340079  [ de ] Hercules 16h 15m 4.13s13° 40 7.91648T6420.942007
SDSSp J162414.37+002915.6  [ de ] Serpens 16h 24m 14.36s0° 29 15.836T6430.941999
2MASS J16262034+3925190  [ de ] Hercules 16h 26m 20.34s39° 25 1914.44110L4sd711.032004
2MASSW J1632291+190441  [ de ] Hercules 16h 32m 29.11s19° 4 40.72250L8490.971999
WISEPA J164715.59+563208.216h 47m 15.59s56° 32 8.228L9p410.94n/a
LSPM J1658+7027  [ de ] Draco 16h 58m 3.8s70° 27 1.51960L1731.042000
2MASSI J1726000+15381917h 26m 0.07s15° 38 19114L3β241.40n/a
2MASSW J1728114+39485917h 28m 11.5s39° 48 59.379L7n/a
SDSSp J175032.96+175903.917h 50m 32.93s17° 59 4.290T3.5470.97n/a
2MASS J18283572-484904618h 28m 35.72s−48° 49 4.639T5.5450.95n/a
LSR J1835+3259 Lyra 18h 35m 37.9s32° 59 54.518.2718.5M8.5771.072003
2MASSW J1841086+31172718h 41m 8.61s31° 17 27.9138L4p671.01n/a
2MASS J18432213+404020918h 43m 22.13s40° 40 20.946M8961.22n/a
2MASS J20004841-752307020h 0m 48.41s−75° 23 7105M9γ251.88n/a
SDSS J204749.61-071818.320h 47m 49.59s−7° 18 18.265T0:460.96n/a
2MASSI J2057540-02523020h 57m 54.09s−2° 52 30.247L1.5701.02n/a
2MASSW J2101154+17565821h 1m 15.44s17° 56 58.6108L7.5n/a
2MASSI J2104149-10373621h 4m 14.91s−10° 37 36.962L2.5691.02n/a
PSO J318.5−22 Capricornus 21h 14m 8.02s−22° 51 35.880L7VL-G6.51.532013
HB 2124-422821h 27m 26.13s−42° 15 18.3113M7.5941.21n/a
2MASS J21392676+0220226 Aquarius 21h 39m 26.77s2° 20 22.714.7132.1T1.5460.96n/a
2MASS J21481628+400359321h 48m 16.33s40° 3 59.426.3L6550.99n/a
2MASS J14112131-211950321h 50m 19.5s−21° 19 50M9βn/a
2MASSW J2206450-42172122h 6m 44.98s−42° 17 20.893L4γ221.33n/a
2MASSW J2208136+29212122h 8m 13.63s29° 21 21.5154L3γ271.41n/a
2MASSW J2224438-01585222h 24m 43.81s−1° 58 52.138L4.5610.99n/a
2MASS J22282889-4310262 Grus 22h 28m 28.89s−43° 10 26.215.6635T6420.942013
2MASS J22373255+392239822h 37m 32.55s39° 22 39.864M9.5731.04n/a
2MASSW J2244316+20434322h 44m 31.67s20° 43 43.356L6.5121.29n/a
2MASS J23224684-313323123h 22m 46.84s−31° 33 23.156L0β241.39n/a
2MASS J23225299-615127523h 22m 52.99s−61° 51 27.5148L2γ171.59n/a
2MASS J23515044-253736723h 51m 50.44s−25° 37 36.767M8881.16n/a
2MASSI J2356547-15531023h 56m 54.77s−15° 53 11.174T5.5801.09n/a
WISE 0005+3737 Andromeda 0h 5m 17.48s37° 37 20.518.3323.2T92010
WISE 0008-1739 Cetus 0h 8m 49.75s−17° 39 23.6317.0387.1T62010
WISE 0015-4615 Phoenix 0h 15m 5.87s−46° 15 17.648.6T82010
WISE 0031-3840 Sculptor 0h 31m 19.78s−38° 40 36.314.171.8L2 pec2010
WISE 0032-4946 Phoenix 0h 32m 31.09s−49° 46 51.462.9T8.52010
WISE 0038+2758 Andromeda 0h 38m 29.05s27° 58 52.136.9T92010
WISE 0038+8405 Cepheus 0h 38m 30.54s84° 5 17.7101.8T62010
WISE 0040+0900 Pisces 0h 40m 24.88s9° 0 54.847.6T72010
WISE 0049+0441 Pisces 0h 49m 28.48s4° 40 59.8215.8562.6L92010
WISE 0049+2151 Andromeda 0h 49m 45.61s21° 51 20.024.1T8.52010
WISE 0106+1518 Pisces 1h 6m 37.05s15° 18 52.5714.36142.9M8 pec2010
WISE 0123+4142 Andromeda 1h 23m 33.28s41° 42 4.5217.3867.2T72010
WISE 0135+1715 Pisces 1h 35m 25.64s17° 15 3.477.3T62010
WISE 0138-0322 Cetus 1h 38m 36.59s−3° 22 21.5716.3657.7T32010
WISE 0146+4234 Andromeda 1h 46m 56.66s42° 34 10.018.7120.5Y02010
WISE 0148-7202 Hydrus 1h 48m 7.4s−72° 2 58.8718.9630T9.52010
WISE 0150+3827 Andromeda 1h 50m 10.93s38° 27 24.0416.0761.3T02010
WISE 0206+2640 Aries 2h 6m 25.29s26° 40 23.6416.5358.4L9 pec2010
WISE 0221+3842 Andromeda 2h 21m 5.99s38° 42 2.7317.5973.1T6.52010
WISE 0223-2932 Fornax 2h 23m 22.39s−29° 32 57.6317.3447T7.52010
WISE 0226-0211 Cetus 2h 26m 24s−2° 11 42.5118.9491T72010
WISE 0241-3653 Fornax 2h 41m 24.73s−36° 53 28.053.8T72010
WISE 0245-3450 Fornax 2h 45m 12.62s−34° 50 47.856.1T82010
WISE 0247+3725 Perseus 2h 47m 14.52s37° 25 23.557.1T82010
WISE 0305+3954 Perseus 3h 5m 33.55s39° 54 34.7717.1375T62010
WISE 0307+2904 Aries 3h 7m 24.58s29° 4 47.4617.7882.8T6.52010
WISE 0313+7807 Cepheus 3h 13m 26.02s78° 7 44.417.6528T8.52010
WISE 0316+4307 Perseus 3h 16m 24.35s43° 7 9.1106.3T82010
WISE 0321-7347 Hydrus 3h 21m 20.91s−73° 47 58.884.8T82010
WISE 0323-6025 Reticulum 3h 23m 37.57s−60° 25 54.518.1545.3T8.52010
WISE 0325-3854 Fornax 3h 25m 17.69s−38° 54 54.151.2T92010
WISE 0325+0831 Taurus 3h 25m 47.72s8° 31 18.236.5T72010
WISE 0333-5856 Reticulum 3h 33m 49.33s−58° 56 18.61654.8T32010
WISE 0335+4310 Perseus 3h 35m 15.01s43° 10 45.145.7T9::2010
WISE 0336-0143 Eridanus 3h 36m 5.05s−1° 43 50.455.4T8::2010
WISE 0350-5658 Reticulum 3h 50m 0.32s−56° 58 30.222.817.7Y12010
WISE 0359-5401 Reticulum 3h 59m 34.06s−54° 1 54.621.5619.2Y02010
WISE 0410+1502 Taurus 4h 10m 22.79s15° 2 47.4719.2520Y061.172010
WISE 0410+1411 Taurus 4h 10m 54.46s14° 11 31.4117.1685.8T62010
WISE 0413-4750 Horologium 4h 13m 58.14s−47° 50 39.366.2T92010
WISE 0448-1935 Eridanus 4h 48m 53.31s−19° 35 48.0616.9969.8T5 pec2010
WISE 0458+6434A Camelopardalis 4h 58m 53.93s64° 34 52.7217.5035.9T8.5154.22010
WISE 0458+6434B Camelopardalis 4h 58m 53.93s64° 34 52.7218.4835.9T9.5103.82010
WISE 0500-1223 Eridanus 5h 0m 3.03s−12° 23 42.9317.8247T82010
WISE 0513+0608 Orion 5h 13m 17.28s6° 8 14.5516.2144.7T6.52010
WISE 0525+6739 Camelopardalis 5h 25m 36.28s67° 39 49.7917.4998.2T6 pec2010
WISE 0528-3308 Columba 5h 28m 44.53s−33° 8 23.9516.6757.4T7 pec2010
WISE 0535-7500 Mensa 5h 35m 16.8s−75° 0 24.921.147Y12010
WISE 0539-1034 Orion 5h 39m 56.98s−10° 34 36.7117.7184.8T5.52010
WISE 0542-1628 Lepus 5h 42m 31.28s−16° 28 28.9616.6450.6T6.52010
WISE 0607+2429 Gemini 6h 7m 38.65s24° 29 53.514.2225.4L82010
WISE 0611-0410 Monoceros 6h 11m 35.14s−4° 10 24.1715.4957.7T02010
WISE 0612-4920 Puppis 6h 12m 8.69s−49° 20 23.995.2T3.52010
WISE 0612-3036 Canis Major 6h 12m 13.88s−30° 36 12.21764.9T62010
WISE 0614+3912 Auriga 6h 14m 7.51s39° 12 35.6716.9350.2T62010
WISE 0614+0951 Orion 6h 14m 37.73s9° 51 35.051.5T72010
WISE 0623-0456 Monoceros 6h 23m 9.91s−4° 56 24.2717.5137.5T82010
WISE 0625+5646 Lynx 6h 25m 42.27s56° 46 25.5517.167.2T62010
WISE 0627-1114 Canis Major 6h 27m 20.08s−11° 14 27.9815.4937.2T62010
WISE 0647-6232 Pictor 6h 47m 23.23s−62° 32 39.722.6528Y12010
WISE 0656+4205 Auriga 6h 56m 9.63s42° 5 32.2215.4554.1T32010
WISE 0713-2917 Canis Major 7h 13m 22.55s−29° 17 51.919.6423.2Y02010
WISE 0723+3403 Gemini 7h 23m 12.44s34° 3 13.545.7T9:2010
WISE 0733+7544 Camelopardalis 7h 33m 47.94s75° 44 39.278.3T62010
WISE 0734-7157 Volans 7h 34m 44.02s−71° 57 44.020.4134.9Y02010
WISE 0744+5628 Lynx 7h 44m 57.28s56° 28 21.1217.6847.3T82010
WISE 0750+2725 Gemini 7h 50m 3.77s27° 25 44.6819.0251.5T8.52010
WISE 0751-7634 Chamaeleon 7h 51m 8.75s−76° 34 49.5419.3439.1T92010
WISE 0759-4904 Puppis 7h 59m 46.98s−49° 4 54.1338.8T82010
WISE 0811-8051 Chamaeleon 8h 11m 17.81s−80° 51 41.332T9.5:2010
WISE 0812+4021 Lynx 8h 12m 20.04s40° 21 6.263.6T82010
WISE 0819-0335 Hydra 8h 19m 58.06s−3° 35 28.5214.9946T42010
WISE 0821+1443Ursa Major8h 21m 31.66s14° 43 19.2916.7868.2T5.52010
WISE 0836-1859 Pyxis 8h 36m 41.17s−18° 59 47.1872.4T8 pec2010
WISE 0857+5604 Ursa Major 8h 57m 16.25s56° 4 7.5817.6542.1T82010
WISE 0906+4735 Ursa Major 9h 6m 49.34s47° 35 38.218.1651.5T82010
WISE 0929+0409 Hydra 9h 29m 6.78s4° 9 57.5917.2164.9T6.52010
WISE 0952+1955 Leo 9h 52m 59.3s19° 55 8.4917.1372.1T62010
WISE 1018-2445 Hydra 10h 18m 8.05s−24° 45 58.2647.6T82010
WISE 1019+6529 Ursa Major 10h 19m 5.64s65° 29 54.1716.5956.8T62010
WISE 1039-1600 Hydra 10h 39m 7.73s−16° 0 2.947.3T7.52010
WISE 1042-3842 Antlia 10h 42m 45.29s−38° 42 37.8653.2T8.52010
WISE 1051-2138 Hydra 10h 51m 30.01s−21° 38 59.740.8T9:2010
WISE 1122+2550 Leo 11h 22m 54.71s25° 50 21.8516.6757.7T62010
WISE 1124-0421 Leo 11h 24m 38.12s−4° 21 49.750.6T72010
WISE 1147-2040 Hydra 11h 47m 24.21s−20° 40 20.44102L72010
WISE 1150+6302 Ursa Major 11h 50m 13.9s63° 2 40.9717.7232.9T82010
WISE 1217+1626A Coma Berenices 12h 17m 56.96s16° 26 39.9818.5934.2T9122010
WISE 1217+1626B Coma Berenices 12h 17m 56.96s16° 26 39.9820.2634.2Y062010
WISE 1225-1013 Virgo 12h 25m 58.86s−10° 13 45.055.4T62010
WISE 1311+0122 Virgo 13h 11m 6.21s1° 22 53.6118.9744.4T9:2010
WISE 1311+3629 Canes Venatici 13h 11m 41.91s36° 29 24.8315.5586.1L5 pec2010
WISE 1318-1758 Virgo 13h 18m 33.98s−17° 58 26.532.9T9:2010
WISE 1320+6034 Ursa Major 13h 20m 4.18s60° 34 25.9916.9556.1T6.52010
WISE 1322-2340 Hydra 13h 22m 33.63s−23° 40 16.7117.0133.9T82010
WISE 1348+6603 Draco 13h 48m 7.04s66° 3 28.2517.1791L92010
WISE 1405+5534 Ursa Major 14h 5m 18.27s55° 34 21.2220.225.3Y0 pec300.862010
WISE 1433-0837 Libra 14h 33m 11.42s−8° 37 36.484.8T8::2010
WISE 1436-1814 Libra 14h 36m 2.22s−18° 14 21.8760T8 pec2010
WISE 1457+5815 Draco 14h 57m 15.03s58° 15 9.9316.8352.2T72010
WISE 1506+7027 Ursa Minor 15h 6m 49.89s70° 27 36.2314.3311.1T62010
WISE 1517+0529 Serpens 15h 17m 21.13s5° 29 29.372.4T82010
WISE 1519+7009 Ursa Minor 15h 19m 6.69s70° 9 30.9217.8850.9T82010
WISE 1523+3125 Corona Borealis 15h 23m 5.1s31° 25 37.684.5T7 p2010
WISE 1541-2250 Libra 15h 41m 51.57s−22° 50 25.0321.1620Y0.52010
WISE 1542+2230 Serpens 15h 42m 14.0s22° 30 5.241.1T9.52010
WISE 1612-3420 Scorpius 16h 12m 15.92s−34° 20 28.6155.4T6.52010
WISE 1614+1739 Hercules 16h 14m 41.48s17° 39 35.4419.0832.6T92010
WISE 1617+1807 Hercules 16h 17m 5.74s18° 7 14.2117.6650.2T82010
WISE 1622-0959 Scorpius 16h 22m 9.95s−9° 55 34.7816.4452.2T62010
WISE 1627+3255 Hercules 16h 27m 25.65s32° 55 24.516.6150.2T62010
WISE 1639-6847 Triangulum Australe 16h 39m 40.83s−68° 47 38.616.3Y02010
WISE 1647+5632 Draco 16h 47m 15.59s56° 32 8.4416.5928T62010
WISE 1653+4444 Hercules 16h 53m 11.03s44° 44 22.7117.5939.5T82010
WISE 1711+3500 Hercules 17h 11m 4.59s35° 0 36.7317.8960.3T82010
WISE 1717+6129 Draco 17h 17m 17.13s61° 28 58.8218.4972.7T82010
WISE 1721+1117 Ophiuchus 17h 21m 34.46s11° 17 39.462.3T62010
WISE 1728+5716 Draco 17h 28m 44.97s57° 16 42.917.6897.8T62010
WISE 1738+2732 Hercules 17h 38m 35.54s27° 32 58.7819.4720Y02010
WISE 1741+2553 Hercules 17h 41m 24.22s25° 53 18.9616.5318.9T92010
WISE 1746-0338 Ophiuchus 17h 46m 40.78s−3° 38 1817.4583.8T62010
WISE 1800+0134 Ophiuchus 18h 0m 26.60s1° 34 53.114.328.7T7.5572010
WISE 1804+3117 Hercules 18h 4m 35.39s31° 17 5.9818.730T9.5:2010
WISE 1809+3838 Hercules 18h 9m 1.07s38° 38 5.474.4T82010
WISE 1812+2721 Hercules 18h 12m 10.83s27° 21 44.2618.1947T8.5:2010
WISE 1828+2650 Lyra 18h 28m 31.10s26° 50 37.7923.5736Y22010
WISE 1830+4542 Lyra 18h 30m 58.57s45° 42 57.55107L92010
WISE 1841+7000 Draco 18h 41m 24.75s70° 0 38.5417.24131.1T52010
WISE 1852+3537 Lyra 18h 52m 15.83s35° 37 16.0616.555.4T72010
WISE 1906+4508 Lyra 19h 6m 24.73s45° 8 6.8816.3651.5T62010
WISE 1928+2356 Vulpecula 19h 28m 41.35s23° 56 4.922.8T62010
WISE 1952+7240 Draco 19h 52m 46.61s72° 40 0.6115.0944.4T42010
WISE 1959-3338 Sagittarius 19h 59m 5.65s33° 38 34.0316.8737.2T82010
WISE 2030+0749 Delphinus 20h 30m 42.90s7° 49 34.414.2334.2T1.52010
WISE 2014+0424 Aquila 20h 14m 4.13s4° 24 8.596.2T7 p2010
WISE 2015+6646 Draco 20h 15m 46.27s66° 46 45.150.6T82010
WISE 2018-7423 Pavo 20h 18m 25s−74° 23 27.9917.1147.9T72010
WISE 2019-1148 Capricornus 20h 19m 20.76s−11° 48 7.642.4T8.5:2010
WISE 2056+1459 Delphinus 20h 56m 28.88s14° 59 53.6819.2124.5Y02010
WISE 2134-7137 Indus 21h 34m 56.81s−71° 37 44.5619.842.7T9 pec2010
WISE 2157+2659 Pegasus 21h 57m 51.34s26° 59 31.2517.3161.6T72010
WISE 2209-2734 Piscis Austrinus 22h 9m 22.05s−27° 34 39.9416.8146T72010
WISE 2213+0911 Pegasus 22h 13m 54.71s9° 11 39.4716.9858.7T72010
WISE 2220-3628 Grus 22h 20m 55.31s−36° 28 17.420.3826.4Y02010
WISE 2226+0440 Pegasus 22h 26m 23.06s4° 40 3.0616.945T82010
WISE 2237-0614 Aquarius 22h 37m 29.48s−6° 14 34.3617.453.5T52010
WISE 2237+7228 Cepheus 22h 37m 20.39s72° 28 33.846T62010
WISE 2239+1617 Pegasus 22h 39m 37.57s16° 17 1616.1859.7T32010
WISE 2255-3118 Piscis Austrinus 22h 55m 40.74s−31° 18 42.1117.2944.7T82010
WISE 2301+0216 Pisces 23h 1m 33.32s2° 16 35.160.7T6.52010
WISE 2313-8037 Octans 23h 13m 36.45s−80° 37 0.716.9735.9T82010
WISE 2319-1844 Aquarius 23h 19m 39.13s−18° 44 4.1517.4352.2T7.52010
WISE 2325-4105 Grus 23h 25m 19.54s−41° 5 34.9219.7537.5T9 pec2010
WISE 2327-2730 Sculptor 23h 27m 28.74s−27° 30 56.6616.6870.8L92010
WISE 2335+4222 Andromeda 22h 35m 43.79s42° 22 55.290.3T72010
WISE 2340-0745 Aquarius 23h 40m 26.6s−7° 45 8.4616.1537.8T72010
WISE 2342+0856 Pegasus 23h 42m 28.98s8° 56 20.251.2T6.52010
WISE 2343-7418 Octans 23h 43m 51.3s−74° 18 46.8616.1348.6T62010
WISE 2344+1034 Pegasus 23h 44m 46.23s10° 34 16.118.846T92010
WISE 2348-1028 Aquarius 23h 48m 41.13s−10° 28 44.1116.9154.1T72010
WISE 2357+1227 Pegasus 23h 57m 16.49s12° 27 41.854.8T62010
WISE 2359-7335 Tucana 23h 59m 41.08s−73° 35 5.0916.1642.7T5.52010
WISEA 1101+5400 Ursa Major 11h 01m 25.95s+54° 00′ 52.8″111T5.52017
2M1510 Libra 15h 10m 47.47s−28° 18′ 18.3″120M9γ+M9γ2002
CWISE J022454.10+152633.8AB [18] Aries02h 24m 54.10s+15° 26 33.8T1+L6β52+522024
CWISE J062725.95–002843.8AB [18] Monoceros06h 27m 25.95s−00° 28 43.8129.7T3+T0(blue)52+522024
CWISE J151940.47–485810.2AB [18] Lupus15h 19m 40.47s−48° 58 10.2L5+L663+632024
CWISE J190907.63+553037.3AB [18] Cygnus19h 09m 07.63s+55° 30 37.3L2+L663+632024

Former brown dwarfs

Star Constellation Right
ascension
Declination App.
mag.
Distance (ly) Spectral
type
Brown dwarf Mass
(MJ)
Radius
(RJ)
Orbital
period

(d)
Semimajor
axis

(AU)
Ecc. Discovery year
L 34-26 Chamaeleon 07h 49m 12.71s–76° 42 06.535.6M3Ve [51] COCONUTS-2b 6.3+1.5
−1.9
4000000007506+5205
2060
2011

See also

Related Research Articles

<span class="mw-page-title-main">Brown dwarf</span> Type of substellar object larger than a planet

Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars. Their mass is approximately 13 to 80 times that of Jupiter (MJ)—not big enough to sustain nuclear fusion of ordinary hydrogen (1H) into helium in their cores, but massive enough to emit some light and heat from the fusion of deuterium (2H). The most massive ones can fuse lithium (7Li).

<span class="mw-page-title-main">Rogue planet</span> Planets not gravitationally bound to a star

A rogue planet, also termed a free-floating planet (FFP) or an isolated planetary-mass object (iPMO), is an interstellar object of planetary mass which is not gravitationally bound to any star or brown dwarf.

<span class="mw-page-title-main">NGC 4395</span> Galaxy in the constellation Canes Venatici

NGC 4395 is a nearby low surface brightness spiral galaxy located about 14 million light-years from Earth in the constellation Canes Venatici. The nucleus of NGC 4395 is active and the galaxy is classified as a Seyfert Type I known for its very low-mass supermassive black hole.

<span class="mw-page-title-main">WD 0137−349</span> Binary star system in the constellation Sculptor

WD 0137-349 is a binary star in the constellation of Sculptor. It is located about 330 light-years away, and appears exceedingly faint with an apparent magnitude of 15.33.

<span class="mw-page-title-main">LP 944-20</span> Nearby brown dwarf in the constellation Fornax

LP 944-20 is a dim brown dwarf of spectral class M9 located 21 light-years from the Solar System in the constellation of Fornax. With a visual apparent magnitude of 18.69, it has one of the dimmest visual magnitudes listed on the RECONS page. It is one of the brightest brown dwarfs, if not the brightest at JMKO=10.68±0.03 mag.

<span class="mw-page-title-main">TVLM 513-46546</span> Brown dwarf star in the constellation Boötes

TVLM 513-46546 is an M9 ultracool dwarf at the red dwarf/brown dwarf mass boundary in the constellation Boötes. It exhibits flare star activity, which is most pronounced at radio wavelengths. The star has a mass approximately 80 times the mass of Jupiter. The radio emission is broadband and highly circularly polarized, similar to planetary auroral radio emissions. The radio emission is periodic, with bursts emitted every 7054 s, with nearly one hundredth of a second precision. Subtle variations in the radio pulses could suggest that the ultracool dwarf rotates faster at the equator than the poles in a manner similar to the Sun.

<span class="mw-page-title-main">EC 20058-5234</span> Star in the constellation Telescopium

EC 20058-5234 , is a star in the constellation Telescopium. With an apparent magnitude of 15.03, it's impossible to detect with the naked eye and requires a powerful telescope to be seen; this degenerate object is located 388 light years from the Solar System based on parallax.

Gliese 318 is a white dwarf in the constellation Pyxis. Its spectral type is DA5.5 and it has a visual magnitude of 11.85, and lies 27.8 light-years away. The star was too faint to have had its parallax measured by the Hipparcos satellite. Earth-based measurement in 2009 gave its parallax as 113.63 ± 1.97 milliarcseconds, yielding a distance of 28.7 ± 0.5 light-years; this parallax measurement has since been substantially improved by Gaia. It is around 45% as massive as the Sun but has only 0.15% its luminosity.

A Peter Pan disk is a circumstellar disk around a star or brown dwarf that appears to have retained enough gas to form a gas giant planet for much longer than the typically assumed gas dispersal timescale of approximately 5 million years. Several examples of such disks have been observed to orbit stars with spectral types of M or later. The presence of gas around these disks has generally been inferred from the total amount of radiation emitted from the disk at infrared wavelengths, and/or spectroscopic signatures of hydrogen accreting onto the star. To fit one specific definition of a Peter Pan disk, the source needs to have an infrared "color" of , an age of >20 Myr and spectroscopic evidence of accretion.

<span class="mw-page-title-main">Post common envelope binary</span> Binary system consisting of a white dwarf and a main sequence star or a brown dwarf

A post-common envelope binary (PCEB) or pre-cataclysmic variable is a binary system consisting of a white dwarf or hot subdwarf and a main-sequence star or a brown dwarf. The star or brown dwarf shared a common envelope with the white dwarf progenitor in the red giant phase. In this scenario the star or brown dwarf loses angular momentum as it orbits within the envelope, eventually leaving a main-sequence star and white dwarf in a short-period orbit. A PCEB will continue to lose angular momentum via magnetic braking and gravitational waves and will eventually begin mass-transfer, resulting in a cataclysmic variable. While there are thousands of PCEBs known, there are only a few eclipsing PCEBs, also called ePCEBs. Even more rare are PCEBs with a brown dwarf as the secondary. A brown dwarf with a mass lower than 20 MJ might evaporate during the common envelope phase and therefore the secondary is supposed to have a mass higher than 20 MJ.

HD 200779 is a solitary star located in the equatorial constellation Equuleus, the foal. It has an apparent magnitude of 8.27, making it readily visible in binoculars but not to the naked eye. The object is located relatively close at a distance of 49 light years based on Gaia DR3 parallax measurements, which makes it the nearest star in Equuleus. It is classified as a high proper motion star, with a total proper motion of 569 mas/yr.

<span class="mw-page-title-main">Extended emission-line region</span> Interstellar clouds

An extended emission-line region (EELR) is a giant interstellar cloud ionized by the radiation of an active galactic nucleus (AGN) inside a galaxy or photons produced by the shocks associated with the radio jets. An EELR can appear as a resolved cloud in relative nearby galaxies and as narrow emission lines in more distant galaxies.

<span class="mw-page-title-main">SDSS 1557</span> SDSS 1557 is a binary system in the constellation Serpens.

SDSS 1557 is a binary system composed of a white dwarf and a brown dwarf. The system is surrounded by a circumbinary debris disk. The debris disk was formed when a minor planet was tidally disrupted around the white dwarf in the past.

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