Coordinates: 05h 21m 26.349s, +10° 25′ 27.41″
WISE J0521+1025 is a nearby brown dwarf of spectral type T7.5, located in constellation Orion [~ 1] at approximately 5.0 pc (16.3 ly) from Earth.[ 1]
It is also the nearest known T dwarf in the northern sky.[ 1]
History of observations
WISE J0521+1025 was discovered by Bihain et al. by selection of sources with colours typical for T dwarfs from WISE All-Sky source catalogue and checking them for high proper motion using older surveys: 2MASS, DENIS, SDSS, SSS, DSS and UKIDSS. Three objects among about ten candidates, including WISE J0521+1025, were selected for spectroscopic follow up with Large Binocular Telescope (LBT). October 9, 2012 Bihain et al. carried out follow up observations of WISE J0521+1025 with near-Infrared spectrograph LUCI 1 on LBT. June 25, 2013 Astronomy & Astrophysics received the discovery paper, which was accepted for publication 10 July 2013.[ 1]
Distance
Distance of WISE J0521+1025 was estimated by Bihain et al. using mean absolute magnitudes of single T7.5 dwarfs, derived by Dupuy & Liu (2012) from trigonometric parallaxes:[ 1] 5.0 ± 1.3 pc (16.3 ± 4.2 ly).[ 1]
WISE J0521+1025 distance estimates
Source | Parallax, mas | Distance, pc | Distance, ly | Ref. |
Bihain et al. (2013) | | 5.0 ± 1.3 | 16.3 ± 4.2 | [ 1] |
Non-trigonometric estimates are marked in italic. The best estimate is marked in bold.
See also
Two other T dwarfs, announced in Bihain et al (2013):
Notes
- ↑ It is the nearest known star/brown dwarf in this constellation.
References
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- Sirius (8.60 ± 0.04 ly; 2 stars)
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- Tau Ceti (11.905 ± 0.007 ly; 1 star, 5? planets: b
- c
- d
- e
- f)
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- Altair (16.73 ± 0.05 ly; 1 star)
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- Gliese 876 (15.21 ± 0.04 ly; 1 star, 4 planets: d
- c
- b
- e)
- GJ 1002 (15.31 ± 0.26 ly; 1 star)
- LHS 288 (15.55 ± 0.20 ly; 1 star)
- Gliese 412 (15.81 ± 0.08 ly; 2 stars)
- AD Leonis (15.94 ± 0.22 ly; 1 star)
- Gliese 832 (16.16 ± 0.08 ly; 1 star, 1 planet: b)
- EV Lacertae (16.46 ± 0.07 ly; 1 star)
- Gliese 682 (16.60 ± 0.20 ly; 1 star)
- GJ 1116 (17.06 ± 0.23 ly; 2 stars)
- GJ 3379 (17.10 ± 0.17 ly; 1 star)
- LHS 1723 (17.36 ± 0.12 ly; 1 star)
- Gliese 445 (17.42 ± 0.15 ly; 1 star)
- Wolf 498 (17.66 ± 0.07 ly; 1 star)
- Stein 2051 (18.07 ± 0.08 ly; 2 stars)
- Gliese 251 (18.31 ± 0.15 ly; 1 star)
- Gliese 205 (18.53 ± 0.11 ly; 1 star)
- L 449-1 (18.6 ± 3.9 ly; 1 star)
- LP 816-060 (18.63 ± 0.37 ly; 1 star)
- Gliese 229 (18.77 ± 0.11 ly; 1 star, 1 brown dwarf)
- Ross 47 (19.02 ± 0.11 ly; 1 star)
- Gliese 693 (19.06 ± 0.25 ly; 1 star)
- Gliese 752 (19.08 ± 0.06 ly; 2 stars: A
- B (vB 10))
- Gliese 754 (19.28 ± 0.18 ly; 1 star)
- Gliese 588 (19.35 ± 0.15 ly; 1 star)
- GJ 1005 (19.37 ± 0.10 ly; 2 stars)
- Gliese 908 (19.41 ± 0.14 ly; 1 star)
- YZ Canis Minoris (19.51 ± 0.24 ly; 1 star)
- 2MASS J05332802-4257205 (~19.6 ly; 1 star)
- 2MASS J18450079-1409036 (~19.6 ly; 2 stars)
- Gliese 338 (19.92 ± 0.31 ly; 2 stars)
- Gliese 268 (19.96 ± 0.22 ly; 2 stars)
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- Gliese 784 (20.22 ± 0.13 ly; 1 star)
- HN Librae (20.29 ± 0.25 ly; 1 star)
- Gliese 581 (20.38 ± 0.21 ly; 1 star, 4 (6?) planets: e
- b
- c
- g?
- d
- f?)
- EQ Pegasi (20.40 ± 0.20 ly; 2 stars)
- LHS 2090 (20.8 ± 0.4 ly; 1 star)
- LHS 337 (20.8 ± 0.3 ly; 1 star)
- Furuhjelm 46 (20.9 ± 0.2 ly; 2 stars)
- G 180-060 (20.9 ± 0.6 ly; 1 star)
- V1054 Ophiuchi (21.05 ± 0.07 ly; 5 stars: Ba
- Bb
- A
- Gl 643
- C (vB 8))
- LP 71-82 (~21.2 ly; 1 star)
- G 161-71 (~21.3 ly; 1 star)
- Gliese 625 (21.3 ± 0.2 ly; 1 star)
- GJ 1128 (21.3 ± 0.4 ly; 1 star)
- GL Virginis (21.3 ± 0.4 ly; 1 star)
- LHS 3003 (21.4 ± 0.3 ly; 1 star)
- Gliese 408 (21.8 ± 0.3 ly; 1 star)
- SCR J1546−5534 (~21.9 ly; 1 star)
- Gliese 829 (21.9 ± 0.3 ly; 2 stars)
- G 41-14 (22.1 ± 0.3 ly; 3 stars)
- EE Leonis (22.2 ± 0.5 ly; 1 star)
- Gliese 880 (22.3 ± 0.2 ly; 2 stars)
- Gliese 299 (22.3 ± 0.5 ly; 1 star)
- LP 771-095 (22.7 ± 0.4 ly; 3 stars)
- GJ 1068 (22.7 ± 0.3 ly; 1 star)
- 2MASS J20360829-3607115 (~22.8 ly; 1 star)
- L 369-44 (~22.8 ly; 2 stars)
- 2MASS J18522528-3730363 (~22.8 ly; 1 star)
- G 161-7 (~22.8 ly; 2 stars)
- Gliese 809 (23.0 ± 0.1 ly; 2 stars)
- Gliese 393 (23.0 ± 0.4 ly; 1 star)
- Gliese 54 (23.1 ± 0.6 ly; 2 stars)
- SCR J0740−4257 (~23.5 ly; 1 star)
- L 43-72 (23.5 ± 4.9 ly; 1 star)
- GJ 1286 (23.6 ± 0.6 ly; 1 star)
- GJ 4063 (23.6+9.6
−5.3 ly; 1 star)
- GJ 4053 (23.7 ± 0.9 ly; 1 star)
- GJ 4274 (24.3 ± 0.9 ly; 1 star)
- GJ 3991 (24.28 ± 0.36 ly; 2 stars)
- GJ 4248 (24.29 ± 0.24 ly; 1 star)
- Gliese 109 (24.5 ± 0.4 ly; 1 star)
- GJ 1224 (24.6 ± 0.7 ly; 1 star)
- GJ 3378 (24.7 ± 0.5 ly; 1 star)
- Gliese 514 (24.97 ± 0.20 ly; 1 star)
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K (Orange) |
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| V |
- Gliese 673 (25.12 ± 0.14 ly; 1 star)
- Gliese 884 (26.6 ± 0.3 ly; 1 star)
- p Eridani (26.57 ± 0.31 ly; 2 stars)
- Gliese 250 (28.4 ± 0.3 ly; 2 stars)
- HR 1614 (28.8 ± 0.3 ly; 1 star)
- HR 7722 (28.8 ± 0.3 ly; 1 star, 2 planets: b
- c)
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- LHS 1070 (25.2 ± 0.5 ly; 3 stars)
- Gliese 701 (25.3 ± 0.3 ly; 1 star)
- GJ 1093 (25.3 ± 0.7 ly; 1 star)
- Gliese 480.1 (25.4 ± 0.8 ly; 1 star)
- SIPS 1259-4336 (25.4 ± 0.2 ly; 1 star)
- Gliese 382 (25.48 ± 0.30 ly; 1 star)
- DG Canum Venaticorum (25.9+5.5
−3.8 ly; 1 star)
- Wolf 922 (25.9 ± 0.5 ly; 2 stars)
- Gliese 300 (25.97 ± 0.20 ly; 1 star)
- SSSPM J1138-7722 (26 ± 3 ly; 1 star)
- Gliese 793 (26.08 ly; 1 star)
- 2MASS J12140866-2345172 (~26.1 ly; 1 star)
- 2MASS J19513587-3510375 (~26.1 ly; 1 star)
- SCR 0838-5855 (~26.1 ly; 1 star)
- Gliese 257 (26.2 ± 0.6 ly; 2 stars)
- Gliese 623 (26.2 ± 0.3 ly; 2 stars)
- GJ 1289 (26.4 ± 0.6 ly; 1 star)
- GJ 1105 (26.4 ± 0.7 ly; 1 star)
- Gliese 686 (26.5 ± 0.4 ly; 1 star)
- Gliese 493.1 (26.6 ± 1.0 ly; 1 star)
- Gliese 48 (26.6 ± 0.3 ly; 1 star)
- Gliese 747 (26.6 ± 0.4 ly; 2 stars)
- SCR 1138-7721 (26.7 ± 0.7 ly; 1 star)
- Gliese 486 (26.8 ± 0.6 ly; 1 star)
- GJ 1151 (26.8 ± 0.7 ly; 1 star)
- GJ 1227 (26.9 ± 0.4 ly; 1 star)
- GJ 1230 (27.0+1.7
−1.5 ly; 3 stars)
- Gliese 232 (27.2 ± 0.4 ly; 1 star)
- AP Columbae (27.4 ± 0.2 ly; 1 star)
- GJ 3146 (27.6 ± 1.7 ly; 1 star)
- GJ 1154 (27.6 ± 0.9 ly; 1 star)
- GJ 1057 (27.6 ± 0.9 ly; 1 star)
- Gliese 618 (27.6 ± 0.6 ly; 2 stars)
- GJ 3076 (27.6+6.0
−4.2 ly; 1 star)
- SCR 0640-0552 (~27.7 ly; 1 star)
- HD 32450 (27.8 ± 0.4 ly; 2 stars)
- Gliese 450 (27.9 ± 0.3 ly; 1 star)
- Gliese 877 (28.1 ± 0.3 ly; 1 star)
- Gliese 745 (28.1 ± 0.6 ly; 2 stars)
- Gliese 867 (28.2 ± 0.4 ly; 2 stars)
- GJ 3454 (28.2 ± 0.2 ly; 2 stars)
- SCR 0630-7643 (28.6 ± 0.5 ly; 2 stars)
- HU Delphini (28.6 ± 0.5 ly; 2 stars)
- LDS 169 (28.6 ± 0.8 ly; 2 stars)
- Gliese 849 (28.6 ± 0.5 ly; 1 star, 2 planets: b
- c)
- GJ 1103 (28.7 ± 0.8 ly; 2 stars)
- GJ 1207 (28.8 ± 0.4 ly; 1 star)
- Gliese 465 (29.0 ± 0.7 ly; 1 star)
- GJ 1277 (29.0 ± 4.6 ly; 1 star)
- GJ 3128 (29.1 ± 0.5 ly; 1 star)
- V374 Pegasi (29.1 ± 0.9 ly; 1 star)
- Gliese 357 (29.3 ± 0.5 ly; 1 star)
- Gliese 595 (29.4 ± 3.5 ly; 1 star)
- Gliese 433 (29.5 ± 0.5 ly; 1 star, 2 planets: b
- c)
- Gliese 424 (29.7 ± 0.3 ly; 1 star)
- GJ 3801 (29.7 ± 0.9 ly; 1 star)
- GJ 2066 (29.9 ± 0.5 ly; 1 star)
- LHS 224 (29.9 ± 0.8 ly; 2 stars)
- SCR 1826-6542 (~30 ly; 1 star)
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DA |
- G 99-47 (26.1 ± 0.8 ly; 1 star)
- WD 2359-434 (26.7 ± 0.3 ly; 1 star)
- Gliese 318 (28.7 ± 0.5 ly; 1 star)
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| DC | |
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| DQ |
- LHS 1126 (29.5 ± 0.3 ly; 1 star)
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| DZ |
- Wolf 489 (26.9 ± 0.8 ly; 1 star)
- LP 701-29 (27.9 ± 0.2 ly; 1 star)
- L 745-46 (29.7 ± 0.2 ly; 2 stars)
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M |
- DENIS 0334-49 (27.04 ± 0.83 ly; 1 brown dwarf)
- GJ 3517 (27.8 ± 0.4 ly; 1 brown dwarf)
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| L | |
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| T |
- 2MASS 0348-6022 (~25.4 ly; 1 brown dwarf)
- 2MASS 0729-39 (25.8 ± 1.8 ly; 1 brown dwarf)
- UGPS J0521+3640 (26.7+3.9
−3.2 ly; 1 brown dwarf)
- WISE 0313+7807 (~28.0 ly; 1 brown dwarf)
- 2MASS 0727+1710 (29.0 ± 0.2 ly; 1 brown dwarf)
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| Y |
- WISE 1405+5534 (25.3+4.4
−3.2 ly; 1 brown dwarf)
- WISE 2220-3628 (~26.4 ly; 1 brown dwarf)
- WISE 0647-6232 (28.4+3.3
−2.7 ly; 1 brown dwarf)
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In left column are stellar classes of primary members of star systems. Bold are systems containing at least one component with absolute magnitude of +8.5 or brighter. Italic are systems without known trigonometric parallax. |
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| Bayer | |
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| Flamsteed | |
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| Variable |
- S
- T
- U
- W
- Z
- RS
- UX
- VV
- YY
- AN
- BF
- BL
- BM
- BN
- BQ
- CK
- CN
- CO
- CZ
- DN
- DY
- ER
- EW
- EY
- FH
- FT
- FU
- FZ
- GG
- GP
- GU
- GW
- HK
- KX
- V346
- V351
- V359
- V371
- V372
- V380
- V586
- V901
- V1031
- V1046
- V1051
- V1107
- V1118
- V1149
- V1155
- V1156
- V1159
- V1162
- V1179
- V1192
- V1197
- V1261
- V1307
- V1309
- V1355
- V1357
- V1366
- V1369
- V1377
- V1389
- V1647
- V1649
- V1788
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| HR | |
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| HD |
- 30869
- 31253
- 31423
- 33636
- 34445
- 35575
- 35775
- 36150
- 36558
- 36629
- 36814
- 36840
- 37605
- 37806
- 37903
- 38087
- 38801
- 290327
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| Gliese | |
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| Other | |
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