List of brown dwarfs
Some brown dwarfs are included in this list .
Brown dwarfs circling around stars
star | Right ascension | declination |
Spectral class |
Brown dwarf |
Mass ( M J ) |
Orbital time ( d ) |
Semi-major axis ( AE ) |
Exzen- tricity |
Remarks |
---|---|---|---|---|---|---|---|---|---|
54 Piscium | 00 h 39 m 21.8 s | + 21 ° 15 ′ 01.7 ″ | K0 V | 54 Piscium B | 50 | ? | ? | ? | The central star is also orbited by an exoplanet |
FY 1048 | 02 h 36 m 00.8 s | −23 ° 31 ′ 16.8 ″ | K2 V | FY 1048 B | ? | ? | ? | ? | |
BD −4 ° 782 | 04 h 19 m 09 s | −4 ° 25 ′ 05 ″ | K5 V | BD −4 ° 782 B | 21st | 219.76 | 0.7 | ? | |
Peter 229 | 06 h 10 m 35 s | −51 ° 21 ′ 42 ″ | M1 V | Gliese 229 B | 40 | ? | 40 | ? | first unequivocally proven brown dwarf |
G 196-3 | 10 h 04 m 22 s | + 50 ° 23 ′ 23 ″ | M2.5 V | G 196-3 B | 25th | ? | 300 | ? | |
HD 89707 | 10 h 20 m 50 s | −15 ° 28 ′ 47.7 ″ | G1 V | HD 89707 B | ? | ? | ? | ? | |
HD 98230 | 11 h 18 m 12.5 s | + 31 ° 32 ′ 15 ″ | F8.5 V | HD 98230 B | 37 | 5.364 | 0.06 | ? | |
HD 168443 | 18 h 20 m 03.9 s | −9 ° 35 ′ 44.6 ″ | G6 | HD 168443 C | 18th | 2.91 | ? | ? | |
15 Sagittae | 20 h 04 m 06.2 s | + 17 ° 04 ′ 12.6 ″ | G1 V | 15 Sagittae B | 65 | ? | 14th | ? | |
HD 202206 | 21 h 14 m 57.8 s | −20 ° 57 ′ 20.1 ″ | G6 V | HD 202206 B | 17th | 276 | 0.83 | ? | |
Wolf 940 | 21 h 46 m 38.83 s | −0 ° 10 ′ 38.7 ″ | T8.5 | Wolf 940B | 20-30 | 6574500 | 440 | ? | |
Epsilon Indi | 22 h 03 m 21.7 s | −56 ° 47 ′ 09.5 ″ | K4 V | Epsilon Indi Ba | 47 | 359.3 | 0.99 | ? | |
Epsilon Indi Bb | 28 | 780.64 | 1.7 | ? | |||||
Kappa Andromedae | 23 h 40 m 24.5 s | + 44 ° 20 ′ 0.2 ″ | B9 IVn | Kappa Andromedae b | 50 | ? | 55 | ? |
Brown dwarfs not orbiting stars
Brown dwarf | Right ascension | declination | Constellation | Apparent J-magnitude / mag | Spectral class | Remarks |
---|---|---|---|---|---|---|
2MASS J00001354 + 2554180 | 00 h 00 m 13.54 s | + 25 ° 54 ′ 18.0 ″ | T 4.5 | |||
ULAS J002422.94 + 002247.9 | 00 h 24 m 22.9 s | + 0 ° 22 ′ 47.0 ″ | T 4.5 | |||
ULAS J003402.77-005206.7 | 00 h 34 m 02.7 s | −0 ° 52 ′ 06.0 ″ | T 8.5 | |||
2MASS J00345157 + 0523050 | 00 h 34 m 51.57 s | + 5 ° 23 ′ 05.5 ″ | T 6.5 | |||
2MASS J00501994-3322402 | 00 h 50 m 19.94 s | −33 ° 22 ′ 40.2 ″ | T 7 | |||
CFBDS J005910.90-011401.3 | 00 h 59 m 10.90 s | −1 ° 14 ′ 01.3 ″ | T 9 | |||
ULAS J013117.53−003128.6 | 01 h 31 m 17.53 s | −0 ° 31 ′ 28.6 ″ | Cet | T 3 | ||
SIMP J013656.5 + 093347 | 01 h 36 m 57 s | + 9 ° 33 ′ 47 ″ | T 2.5 | |||
ULAS J013939.77 + 004813.8 | 01 h 39 m 39.8 s | + 0 ° 48 ′ 14 ″ | T7.5 | exceptionally low J − H index of approx. −0.7 | ||
2MASS J01514155 + 1244300 | 01 h 51 m 41.55 s | + 12 ° 44 ′ 30.0 ″ | T 1 | |||
ULAS J020336.94-010231.1 | 02 h 03 m 36.94 s | −1 ° 02 ′ 31.1 ″ | T5 | |||
2MASS J02074284 + 0000564 | 02 h 07 m 42.84 s | + 0 ° 00 ′ 56.4 ″ | T 4.5 | |||
ULAS J022200.43−002410.5 | 02 h 22 m 00.43 s | −0 ° 24 ′ 10.5 ″ | T5 | |||
IfA 0230-Z1 | 02 h 26 m 37.6 s | + 0 ° 51 ′ 55 ″ | Cet | 18th | T3 | |
2MASS J02431371-2453298 | 02 h 43 m 13.71 s | −24 ° 53 ′ 29.8 ″ | T 6V | |||
SDSS J024749.90−163112.6 | 02 h 47 m 49.78 s | −16 ° 31 ′ 13.2 ″ | T 2 T0 + T7 |
Candidate for dual system | ||
2MASS J03202839-0446358 B | 03 h 20 m 28.4 s | −4 ° 46 ′ 36 ″ | T5 ± 1 | |||
SDSS J032553.17 + 042540.1 | 03 h 25 m 53.2 s | + 4 ° 25 ′ 40 ″ | dew | 15.9 | T5.5 (IR) | |
2MASS J03480772-6022270 | 03 h 48 m 07.72 s | −60 ° 22 ′ 27.0 ″ | T 7 | |||
Roque 25 | 03 h 48 m 30.6 s | + 22 ° 44 ′ 50 ″ | L. | |||
ULAS J034832.97−001258.3 | 03 h 48 m 32.97 s | −0 ° 12 ′ 58.3 ″ | T | |||
SDSS J035104.37 + 481046.8 | 03 h 51 m 04 s | + 48 ° 10.8 ′ 0 ″ | By | approx. 15.9 | approx T1 | Chiu et al., 2006 |
2MASS J04070885 + 1514565 | 04 h 07 m 08.85 s | + 15 ° 14 ′ 56.5 ″ | T 5 | |||
2MASS J04151954-0935066 | 04 h 15 m 19.54 s | −9 ° 35 ′ 06.6 ″ | T 8V | |||
2MASS J05103520−4208140 | 05 h 10 m 35.20 s | −42 ° 08 ′ 14.0 ″ | Col | T5 | ||
2MASS J05160945-0445499 | 05 h 16 m 09.45 s | −4 ° 45 ′ 49.9 ″ | T 5.5 | |||
2MASS J05591914-1404488 | 05 h 59 m 19.14 s | −14 ° 04 ′ 48.8 ″ | T 4.5 | |||
2MASS J06020638 + 4043588 | 06 h 02 m 06.38 s | + 40 ° 43 ′ 58.8 ″ | Aur | approx. 15.5 | T4.5 | Burgasser et al., 2007 |
2MASS J07271824 + 1710012 | 07 h 27 m 18:24 s | + 17 ° 10 ′ 01.2 ″ | T 7 | |||
2MASS J07290002-3954043 | 07 h 29 m 00.02 s | −39 ° 54 ′ 04.3 ″ | T 8 | |||
SDSS J073922.26 + 661503.5 | 07 h 39 m 22.3 s | + 66 ° 15 ′ 04 ″ | T1.5 | |||
2MASS J07414920 + 2351275 | 07 h 41 m 49.20 s | + 23 ° 51 ′ 27.5 ″ | T 5 | |||
2MASS J07420130 + 2055198 | 07 h 42 m 01.30 s | + 20 ° 55 ′ 19.8 ″ | T 5 | |||
2MASS J07554795 + 2212169 | 07 h 55 m 47.95 s | + 22 ° 12 ′ 16.9 ″ | T 5 | |||
2MASS J07584037 + 3247245 | 07 h 58 m 40.37 s | + 32 ° 47 ′ 24.5 ″ | T 2 | |||
ULAS J082327.46 + 002424.4 | 08 h 23 m 27.46 s | + 0 ° 24 ′ 24.4 ″ | Hya | 18.57 ± 0.05 | T4 | Pinfield et al., 2008 [1] |
ULAS J082707.67-020408.2 | 08 h 27 m 07.67 s | −2 ° 04 ′ 08.2 ″ | T 5.5 | |||
2MASS J08304878 + 0128311 | 08 h 30 m 48.78 s | + 1 ° 28 ′ 31.1 ″ | T 4.5 | |||
SDSS J083717.22-000018.3 | 08 h 37 m 17.18 s | −0 ° 00 ′ 17.9 ″ | T 0.5 | |||
ULAS J083756.19-004156.0 | 08 h 37 m 56.19 s | −0 ° 41 ′ 56.0 ″ | T 3 | |||
2MASS J08583467 + 3256275 | 08 h 58 m 34.67 s | + 32 ° 56 ′ 27.5 ″ | T 1 | |||
ULAS J085910.69 + 101017.1 | 08 h 59 m 10.69 s | + 10 ° 10 ′ 17.1 ″ | T 7 | |||
ULAS J090116.23-030635.0 | 09 h 01 m 16.23 s | −3 ° 06 ′ 35.0 ″ | T 7.5 | |||
2MASS J09090085 + 6525275 | 09 h 09 m 00.85 s | + 65 ° 25 ′ 27.5 ″ | T 1.5 | |||
2MASS J09201223 + 3517429 | 09 h 20 m 12.23 s | + 35 ° 17 ′ 42.9 ″ | T 0p | |||
2MASS J09261537 + 5847212 | 09 h 26 m 15:37 s | + 58 ° 47 ′ 21.2 ″ | T 4.5 | |||
2MASS J09373487 + 2931409 | 09 h 37 m 34.87 s | + 29 ° 31 ′ 40.9 ″ | T 6 | |||
ULAS J093829.28−001112.6 | 09 h 38 m 29.28 s | −0 ° 11 ′ 12.6 ″ | Hya | 18.53 ± 0.06 | T4.5 | Pinfield et al., 2008 [2] |
2MASS J09393548-2448279 | 09 h 39 m 35.48 s | −24 ° 48 ′ 27.9 ″ | T 8 | |||
ULAS J093951.04 + 001653.6 | 09 h 39 m 51.04 s | + 0 ° 16 ′ 53.6 ″ | Hya | 17.96 ± 0.03 | T5.5 | Pinfield et al., 2008 |
ULAS J094806.06 + 064805.0 | 09 h 48 m 06.06 s | + 6 ° 48 ′ 05.0 ″ | T 7 | |||
2MASS J09490860-1545485 | 09 h 49 m 08.60 s | −15 ° 45 ′ 48.5 ″ | T 2 | |||
ULAS J095829.86-003932.0 | 09 h 58 m 29.86 s | −0 ° 39 ′ 32.0 ″ | T 5.5 | |||
CFBDS J095914 + 023655 | 09 h 59 m 14 s | + 2 ° 36 ′ 55 ″ | T 3 | |||
CFBDS J100113 + 022622 | 10 h 01 m 13 s | + 2 ° 26 ′ 22 ″ | sex | approx. 17.9 | T 5 | µ α ∙ cos (δ) = −90.21 ± 13.7 mas / a µ δ = +49.41 ± 14.23 mas / a Discovery: Delorme et al., 2008 |
2MASS J10073369−4555147 | 10 h 07 m 33.69 s | −45 ° 55 ′ 14.7 ″ | UMa | T5 | ||
ULAS J100759.90-010031.1 | 10 h 07 m 59.90 s | −1 ° 00 ′ 31.1 ″ | T 5.5 | |||
ULAS J101821.78 + 072547.1 | 10 h 18 m 21.78 s | + 7 ° 25 ′ 47.1 ″ | T 5 | |||
2MASS J10210969-0304197 | 10 h 21 m 09.69 s | −3 ° 04 ′ 19.7 ″ | T 3 | |||
Teide 1 | 03 h 47 m 18.0 s | + 24 ° 22 ′ 31 ″ | M 8 | |||
SDSS J011912.22 + 240331.6 | 01 h 19 m 12.07 s | + 24 ° 03 ′ 31.7 ″ | T 2 | |||
2MASS J03061159-3647528 | 10 h 39 m 31.37 s | + 32 ° 56 ′ 26.3 ″ | T 1 | |||
2MASS J10475385 + 2124234 | 10 h 47 m 53.85 s | + 21 ° 24 ′ 23.4 ″ | T 6.5V | |||
SDSS J104829.21 + 091937.8 | 10 h 48 m 29.2 s | + 9 ° 19 ′ 38 ″ | Leo | 16.4 | T2.5 | |
2MASS J10521350 + 4422559 | 10 h 52 m 13.50 s | + 44 ° 22 ′ 55.9 ″ | T 0.5 | |||
SDSS J110454.25 + 554841.4 | 11 h 04 m 54.3 s | + 55 ° 48 ′ 41 ″ | UMa | T 0 | ||
2MASS J11061197 + 2754225 | 11 h 06 m 11.97 s | + 27 ° 54 ′ 22.5 ″ | T 2.5 | |||
2MASS J11101001 + 0116130 | 11 h 10 m 10.01 s | + 1 ° 16 ′ 13.0 ″ | T 5.5 | |||
2MASS J11145133-2618235 | 11 h 14 m 51.33 s | −26 ° 18 ′ 23.5 ″ | T 7.5 | |||
2MASS J11220826-3512363 | 11 h 22 m 08.26 p | −35 ° 12 ′ 36.3 ″ | T 2 | |||
2MASS J11463449 + 2230527 | 11 h 46 m 34.49 s | + 22 ° 30 ′ 52.7 ″ | T 3 | |||
ULAS J115038.79 + 094942.9 | 11 h 50 m 38.8 s | + 9 ° 49 ′ 43 ″ | Vir | 18.68 ± 0.04 | unusual spectrum, possibly an object of high metallicity and low surface gravity; Pinfield et al., 2008 | |
SDSS J115700.50 + 061105.2 | 11 h 57 m 00.49 s | + 6 ° 11 ′ 05.2 ″ | T 1.5 | |||
ULAS J115759.04 + 092200.7 | 11 h 57 m 59.04 s | + 9 ° 22 ′ 00.7 ″ | T 2.5 | |||
SDSS J120602.51 + 281328.7 | 12 h 06 m 02.5 s | + 28 ° 13 ′ 29 ″ | T 3 | |||
2MASS J12095613−1004008 | 12 h 09 m 56.1 s | −10 ° 04 ′ 01 ″ | approx T2 + T7 | |||
2MASS J12144089 + 6316434 | 12 h 14 m 40.89 s | + 63 ° 16 ′ 43.4 ″ | T 3.5 | |||
2MASS J12154432−3420591 | 12 h 15 m 44.32 s | −34 ° 20 ′ 59.1 ″ | Hya | approx. 16.2 | T4.5 | |
2MASS J12165918 + 3003054 | 12 h 16 m 59.2 s | + 30 ° 03 ′ 05.4 ″ | Berenike's hair | 16.89 | L3.5 | |
2MASS J12171110-0311131 | 12 h 17 m 11.10 s | −3 ° 11 ′ 13.1 ″ | T 7V | |||
2MASS J12255432-2739466 | 12 h 25 m 54.32 s | −27 ° 39 ′ 46.6 ″ | T 6 | |||
2MASS J12314753 + 0847331 | 12 h 31 m 47.53 s | + 8 ° 47 ′ 33.1 ″ | T 5.5 | |||
2MASS J12373919 + 6526148 | 12 h 37 m 39.19 s | + 65 ° 26 ′ 14.8 ″ | T 6.5V | |||
SDSS J125011.65 + 392553.9 | 12 h 50 m 11.7 s | + 39 ° 25 ′ 54 ″ | CVn | 16.5 | T4 | |
SDSSp J125453.90-012247.4 | 12 h 54 m 53.9 s | −1 ° 22 ′ 47 ″ | Vir | 14.9 | T2 | |
ULAS J130303.54 + 001627.7 | 13 h 03 m 03.54 s | + 0 ° 16 ′ 27.7 ″ | T 5.5 | |||
ULAS J131508.42 + 082627.4 | 13 h 15 m 08.42 s | + 8 ° 26 ′ 27.4 ″ | T 7.5 | |||
2MASS J13243559 + 6358284 | 13 h 24 m 35.59 s | + 63 ° 58 ′ 28.4 ″ | T 2 | |||
2MASS J13464634-0031501 | 13 h 46 m 46.34 s | −0 ° 31 ′ 50.1 ″ | T 7 | |||
SDSS J135852.68 + 374711.9 | 13 h 58 m 52.7 s | + 37 ° 47 ′ 12 ″ | CVn | 16.2 | T4.5 | |
SDSS J140255.66 + 080055.2 | 14 h 02 m 55.7 s | + 8 ° 00 ′ 55 ″ | Boo | T1.5 | ||
2MASS J14044941-3159329 | 14 h 04 m 49.41 s | −31 ° 59 ′ 32.9 ″ | T 2.5 | |||
2MASS J14153003 + 5724300 | 14 h 15 m 30.03 s | + 57 ° 24 ′ 30.0 ″ | T 3 | |||
2MASS J14353572-0043471 | 14 h 35 m 35.72 s | −0 ° 43 ′ 47.1 ″ | T 6 | |||
SDSS J143553.25 + 112948.6 | 14 h 35 m 53.2 s | + 11 ° 29 ′ 49 ″ | T 2 | |||
2MASS J14394092 + 1826369 | 14 h 39 m 40.92 s | + 18 ° 26 ′ 36.9 ″ | Bear keeper | L1 | ||
SDSS J143945.86 + 304220.6 | 14 h 39 m 46 s | + 30 ° 42 ′ 21 ″ | T 2.5 | possibly double system | ||
ULAS J145243.59 + 065542.9 | 14 h 52 m 43.59 s | + 6 ° 55 ′ 42.9 ″ | T 4.5 | |||
ULAS J150135.33 + 082215.2 | 15 h 01 m 35.33 s | + 8 ° 22 ′ 15.2 ″ | T 4.5 | |||
2MASS J15031961 + 2525196 | 15 h 03 m 19.61 s | + 25 ° 25 ′ 19.6 ″ | T 6 | |||
SDSS J150411.63 + 102718.4 | 15 h 04 m 11.6 s | + 10 ° 27 ′ 18 ″ | T 7 | |||
ULAS J150547.89 + 070316.6 | 15 h 05 m 47.89 s | + 7 ° 03 ′ 16.6 ″ | T 4 | |||
2MASS J15111466 + 0607431 | 15 h 11 m 14.66 s | + 6 ° 07 ′ 43.1 ″ | T 0 | |||
2MASS J15160303 + 0259292 | 15 h 16 m 03.03 p | + 2 ° 59 ′ 29.2 ″ | T 0 | |||
2MASS J15164306 + 3053443 | 15 h 16 m 43.06 s | + 30 ° 53 ′ 44.3 ″ | T 0.5 | |||
2MASS J15203974 + 3546210 | 15 h 20 m 39.74 s | + 35 ° 46 ′ 21.0 ″ | T 0 | |||
2MASS J15210327 + 0131426 | 15 h 21 m 03.27 s | + 1 ° 31 ′ 42.6 ″ | T 2 | |||
2MASS J15341711 + 1615463 | 15 h 34 m 17.11 s | + 16 ° 15 ′ 46.3 ″ | T 3.5 | |||
2MASS J15344984-2952274 | 15 h 34 m 49.84 s | −29 ° 52 ′ 27.4 ″ | T 6 | |||
ULAS J154427.34 + 081926.6 | 15 h 44 m 27.34 s | + 8 ° 19 ′ 26.6 ″ | T 3.5 | |||
2MASS J15461461 + 4932114 | 15 h 46 m 14.6 s | + 49 ° 32 ′ 11 ″ | Boo | 15.90 ± 0.07 | T 2.5 (?) | Metchev et al., 2008 |
2MASS J15462718-3325111 | 15 h 46 m 27.18 s | −33 ° 25 ′ 11.1 ″ | T 5.5 | |||
ULAS J154701.84 + 005320.3 | 15 h 47 m 01.84 s | + 0 ° 53 ′ 20.3 ″ | T 5.5 | |||
2MASS J15530228 + 1532369 | 15 h 53 m 02.28 s | + 15 ° 32 ′ 36.9 ″ | T 7 | |||
2MASS J16150413 + 1340079 | 16 h 15 m 04.13 s | + 13 ° 40 ′ 07.9 ″ | T 6 | |||
2MASS J16241436 + 0029158 | 16 h 24 m 14.36 s | + 0 ° 29 ′ 15.8 ″ | T 6 | |||
SDSS J162838.77 + 230821.1 | 16 h 28 m 38.8 s | + 23 ° 08 ′ 21 ″ | T 7 | |||
SDSS J163022.92 + 081822.0 | 16 h 30 m 22.9 s | + 8 ° 18 ′ 22 ″ | Her | 16.2 | T5.5 | |
SDSS J163239.34 + 415004.3 | 16 h 32 m 39.34 s | + 41 ° 50 ′ 04.3 ″ | T 1 | |||
2MASS J16401059 + 0037213 | 16 h 40 m 10.6 s | + 0 ° 37 ′ 21.3 ″ | Snake bearer | ~ 17 | L0 |