List of nearest stars explained

This list covers all known stars, white dwarfs, brown dwarfs, and sub-brown dwarfs within 20ly of the Sun. So far, 131 such objects have been found. Only 22 are bright enough to be visible without a telescope, for which the star's visible light needs to reach or exceed the dimmest brightness visible to the naked eye from Earth, 6.5 apparent magnitude.[1]

The known 131 objects are bound in 94 stellar systems. Of those, 103 are main sequence stars: 80 red dwarfs and 23 "typical" stars having greater mass. Additionally, astronomers have found 6 white dwarfs (stars that have exhausted all fusible hydrogen), 21 brown dwarfs, as well as 1 sub-brown dwarf, WISE 0855−0714 (possibly a rogue planet). The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from Earth. The brightest, most massive and most luminous object among those 131 is Sirius A, which is also the brightest star in Earth's night sky; its white dwarf companion Sirius B is the hottest object among them. The largest object within the 20 light-years is Procyon.

The Solar System, and the other stars/dwarfs listed here, are currently moving within (or near) the Local Interstellar Cloud, roughly 301NaN1 across. The Local Interstellar Cloud is, in turn, contained inside the Local Bubble, a cavity in the interstellar medium about 3001NaN1 across. It contains Ursa Major and the Hyades star cluster, among others. The Local Bubble also contains the neighboring G-Cloud, which contains the stars Alpha Centauri and Altair. In the galactic context, the Local Bubble is a small part of the Orion Arm, which contains most stars that we can see without a telescope. The Orion Arm is one of the spiral arms of our Milky Way galaxy.

Astrometrics

The easiest way to determine stellar distance to the Sun for objects at these distances is parallax, which measures how much stars appear to move against background objects over the course of Earth's orbit around the Sun. As a parsec (parallax-second) is defined by the distance of an object that would appear to move exactly one second of arc against background objects, stars less than 5 parsecs away will have measured parallaxes of over 0.2 arcseconds, or 200 milliarcseconds. Determining past and future positions relies on accurate astrometric measurements of their parallax and total proper motions (how far they move across the sky due to their actual velocity relative to the Sun), along with spectroscopically determined radial velocities (their speed directly towards or away from us, which combined with proper motion defines their true movement through the sky relative to the Sun). Both of these measurements are subject to increasing and significant errors over very long time spans, especially over the several thousand-year time spans it takes for stars to noticeably move relative to each other.[2]

Based on results from the Gaia telescope's second data release from April 2018, an estimated 694 stars will approach the Solar System to less than 5 parsecs in the next 15 million years. Of these, 26 have a good probability to come within 1abbr=offNaNabbr=off and another 7 within 0.5abbr=offNaNabbr=off.[3] This number is likely much higher, due to the sheer number of stars needed to be surveyed; a star approaching the Solar System 10 million years ago, moving at a typical Sun-relative 20–200 kilometers per second, would be 600–6,000 light-years from the Sun at present day, with millions of stars closer to the Sun. The closest encounter to the Sun so far predicted is the low-mass orange dwarf star Gliese 710 / HIP 89825 with roughly 60% the mass of the Sun.[4] It is currently predicted to pass (au) from the Sun in million years from the present, close enough to significantly disturb the Solar System's Oort cloud.[5]

List

Key
Visible to the unaided eye (apparent magnitude of +6.5 or brighter)
Luminous star (absolute magnitude of +8.5 or brighter)
White dwarf
§Brown dwarf
Sub-brown dwarf or rogue planet
Nearest in constellation

The classes of the stars and brown dwarfs are shown in the color of their spectral types (these colors are derived from conventional names for the spectral types and do not necessarily represent the star's observed color). Many brown dwarfs are not listed by visual magnitude but are listed by near-infrared J band apparent magnitude due to how dim (and often invisible) they are in visible color bands (U, B or V). Absolute magnitude (with electromagnetic wave, 'light' band denoted in subscript) is a measurement at a 10-parsec distance across imaginary empty space devoid of all its sparse dust and gas. Some of the parallaxes and resultant distances are rough measurements.[6]

Designation! rowspan="2" data-sort-type="number"
Distance
(ly (±err))[7]

Constellation

Coordinates:
RADec
(Ep J2000, Eq J2000)
Stellar
class
MassMagnitude Parallax
(mas
(±err))

[8]
Notes and additional
references
SystemStar or (sub-) brown dwarfMdata-sort-type="number" App.data-sort-type="number" Abs.
Solar SystemSun (Sol)0.0000158G2V1−26.744.85eight recognized planets and more dwarf planets
Alpha CentauriProxima Centauri (C, V645 Centauri)4.2465
Cen
M5.5Ve0.12211.0915.53768.0665
flare star, two confirmed planets (b, 2016, and d, 2022)[9] [10] and a third disputed planet (c, 2019)[11] [12]
Rigil Kentaurus (A)4.3441

G2V1.0790.014.38750.81
[13]
one directly imaged habitable-zone planet candidate (Candidate 1) (2021)
Toliman (B)
K1V0.9091.345.71planet b refuted in 2015
Barnard's Star (BD+04°3561a)5.9629
Oph
M4.0Ve0.1449.5313.22546.9759
flare star, largest-known proper motion,[14] one refuted planet (b)[15]
Luhman 16
(WISE 1049−5319)
6.5029
Vel
L8±1[16] 0.03210.7 J14.2 J501.557
[17]
nearest brown dwarfs
T1±20.027
WISE 0855−07147.430
Hya
0.003-0.01025.0 J28.2 J439.0
[18]
sub-brown dwarf
Wolf 359 (CN Leonis)7.8558
Leo
M6.0V0.09013.4416.55415.1794
flare star, has 1 candidate & 1 refuted planet[19]
Lalande 21185 (BD+36°2147, Gliese 411, HD 95735)8.3044
UMa
M2.0V0.3907.4710.44392.7529
two known planets (2019, 2021)
Alpha Canis MajorisSirius (A)8.7094
CMa
A1V2.063−1.461.42374.4896
brightest star in the night sky
BDA21.0188.4411.34
Gliese 65 (Luyten 726–8)A (BL Ceti)8.724
Cet
M5.5Ve0.10212.5415.40373.8443
flare star (Archetypal member), has 1 candidate planet[20]
B (UV Ceti)M6.0Ve0.10012.9915.85
Ross 154 (V1216 Sagittarii)9.7063
Sgr
M3.5Ve0.1710.4313.07336.0266
flare star
Ross 248 (HH Andromedae)10.3057
And
M5.5Ve0.13612.2914.79316.4812
flare star
Ran (Epsilon Eridani)10.4749
Eri
K2V0.8203.736.19311.37
three circumstellar disks,
one confirmed planet (AEgir, 2000) and one candidate (c, 2002)
Lacaille 9352 (Gliese 887)10.7241
PsA
M0.5V0.4867.349.75304.1354
two planets, b and c, with equivocal evidence for a third in the habitable zone (2020)
Ross 128 (FI Virginis)11.0074
Vir
M4.0Vn0.16811.1313.51296.3053
flare star, one planet (b) (2017)[21]
EZ Aquarii
(Gliese 866, Luyten 789-6)
A11.109
Aqr
M5.0Ve0.1113.3315.64293.60
[22]
A & B flare stars
BM?0.1113.2715.58
CM?0.1014.0316.34
Alpha Canis MinorisProcyon (A)11.402
CMi
F5IV–V1.4990.382.66286.05

[23] [24]
BDQZ0.60210.7012.98
61 CygniA (BD+38°4343)11.4039
Cyg
0.705.217.49286.0054
First star (besides Sun) to have measured distance.[25]
B flare star, with possible planet or brown dwarf.[26]
Possible circumstellar disk.
B (BD+38°4344)
0.636.038.31
Struve 2398
(Gliese 725, BD+59°1915)
A (HD 173739)11.4908
Dra
M3.0V0.3348.9011.16283.8401
flare stars, star B has 2 candidate planets
B (HD 173740)
M3.5V0.2489.6911.95
Groombridge 34
(Gliese 15)
A (GX Andromedae)11.6191
And
M1.5V <--previous: M3.0V-->0.388.0810.32280.7068
flare star, two known planets (Ab, 2014, and Ac, 2018)[27]
B (GQ Andromedae)M3.5V0.1511.0613.30flare star
DX Cancri (G 51-15)11.6797
Cnc
M6.5Ve0.0914.7816.98279.2496
flare star
Epsilon Indi
(CPD−57°10015)
A11.8670
Ind
K5Ve0.7544.696.89274.8431
one planet (Ab) (2018)
Ba§
T1.0V0.06512.3 J[28] 14.5 J
Bb§T6.0V0.05013.2 J15.4 J
Tau Ceti (BD−16°295)11.9118
Cet
G8.5Vp0.7833.495.68273.8097
one debris disk
four confirmed planets (e, f, g, and h) (2012, 2017),
four candidate planets (b, c, d, and "i") (2012, 2019)
GJ 1061 (LHS 1565)11.9839
Hor
M5.5V0.11313.0915.26272.1615
has 3 known planets (2019)[29] [30] [31]
YZ Ceti (LHS 138)12.1222
Cet
M4.5V0.13012.0214.17269.0573
flare star, three planets (b, c, and d) (2017)[32]
Luyten's Star (BD+05°1668)12.3485
CMi
M3.5Vn0.269.8611.97264.1269
two planets (b, c) (2017)[33] and two suspected planets (d, e) (2019)[34]
Teegarden's Star (SO025300.5+165258)12.4970
Ari
M6.5V0.0815.1417.22260.9884
has 3 known planets (2019, 2024)[35] [36]
Kapteyn's Star (CD−45°1841)12.8308
Pic
M1.5VI <--Current RECONS link gives "M2.0VI"-->0.2818.8410.87254.1986
two refuted planets (b and c) (2014)[37] [38]
Lacaille 8760 (AX Microscopii)12.9472
Mic
M0.0V <--previous: M2Ve-->0.606.678.69251.9124
brightest M dwarf star in night sky, flare star
SCR 1845−6357A13.0638
Pav
M8.5V0.0717.3919.41249.6651

T6[39] 0.0313.3 J15.3 J
Kruger 60
(BD+56°2783)
A13.0724
Cep
M3.0V0.2719.7911.76249.5
B flare star
B (DO Cephei)M4.0V0.17611.4113.38
DENIS J1048−395613.1932
Ant
M8.5V0.0817.3919.37247.2156
[40] [41]
Ross 614
(V577 Monocerotis, Gliese 234)
A (LHS 1849)13.363
Mon
M4.5V0.22311.1513.09244.07
[42]
A flare star
B (LHS 1850)M5.5V0.11114.2316.17
UGPS J0722-0540§13.43
Mon
T90.010-0.02516.52 J[43] 18.45 J242.8
[44]
[45]
Wolf 1061 (Gliese 628, BD−12°4523)14.0500
Oph
M3.0V0.29410.0711.93232.1390
three planets (b, c, and d) (2015)[46]
Van Maanen's Star (Gliese 35, LHS 7)14.0718
Psc
DZ70.6712.3814.21231.7800
closest-known free-floating white dwarf,
third-known white dwarf
possible debris disk (1917)
Gliese 1 (CD−37°15492)14.1747
Scl
M1.5 V0.45-0.488.5510.35230.0970
TZ Arietis (Gliese 83.1, L 1159–16)14.5780
Ari
M4.5V0.1412.2714.03223.7321
flare star, has one confirmed planet (b)
Wolf 424
(FL Virginis, LHS 333, Gliese 473)
A14.595
Vir
M5.5Ve0.14313.1814.97223.4775
flare stars
BM7Ve0.13113.1714.96
Gliese 687 (LHS 450, BD+68°946)14.8395
Dra
M3.0V0.4019.1710.89219.7898
possible flare star, two planets (b) (2014)[47] and (c) (2020)[48]
Gliese 674 (LHS 449)14.8492
Ara
M3.0V0.359.3811.09219.6463
one planet (b) (2007)[49]
LHS 292 (LP 731-58)14.8706
Sex
M6.5V0.0815.6017.32219.3302
flare star
Gliese 440 (WD 1142-645, LP 145-141)15.1226
Mus
DQ60.7511.5013.18215.6753
GJ 1245A (G 208-44 A)15.2001
Cyg
M5.5V0.1113.4615.17214.5745
flare stars
B (G 208-45)
M6.0V0.1014.0115.72
C (G 208-44 B)
M5.50.0716.7518.46
WISE 1741+2553§15.22
Her
T916.53 J18.18 J214.3
[50]
Gliese 876 (Ross 780)15.2382
Aqr
M3.5V0.3710.1711.81214.0380
four planets (d (2005), c (2001), b (1998), and e (2010))[51]
WISE 1639−6847§15.450
TrA
Y0.520.57 J22.10 J211.11
[52]
LHS 288 (Luyten 143-23)15.7586
Car
M5.5V0.1113.9015.51206.9698
GJ 100215.8060
Cet
M5.5V0.1113.7615.40206.3500
two known planets (b & c, 2022)[53]
DENIS 0255−4700§15.877
Eri
L7.5V0.025-0.06522.9224.44205.4251
Groombridge 1618 (Gliese 380)15.8857
UMa
K7.0V0.676.598.16205.3148
flare star, one suspected debris disk
Gliese 412A15.9969
UMa
M1.0V0.488.7710.34203.8876
B (WX Ursae Majoris)
M5.5V0.1014.4816.05flare star
AD Leonis16.1939
Leo
M3.0V0.39-0.429.3210.87201.4064
flare star, 1 refuted planet (b in 2020)[54]
Gliese 83216.2005
Gru
M1.5 V0.458.6610.20201.3252
possible flare star, two planets; one confirmed (b (2008)),[55] and the other now refuted (c (2014))[56] [57]
Gliese 682 (CD-44 11909)16.3328
Sco
M4 V0.2710.9512.45199.6944
has 2 disputed planets
Omicron2 Eridani
(40 Eridani, Gliese 166)
Keid (A)16.3330
Eri
K0.5 V0.844.435.93199.6911
has 1 refuted planet
B
DA40.5739.5211.02
C
M4 V0.203611.2412.74
EV Lacertae16.4761
Lac
M3.5 V0.3510.2211.70197.9573
record setting stellar flare observed
70 Ophiuchi (Gliese 702) A16.7074
Oph
K0 V0.904.215.66195.2166
B
K5 V0.706.017.46
Altair (Alpha Aquilae)16.730
Aql
A7 IV-Vn1.790.772.22194.95
EI Cancri (GJ 1116,) A16.800

M5.5 V0.1214.0615.50194.1443
BM V0.1014.9216.36
WISE J150649.97+702736.1§16.856
UMi
T613.74 J15.17 J193.5
GJ 3379 16.9861
Ori
M3.5 V0.231211.3112.73192.0135
DENIS J081730.0−615520§17.002
Car
T60.01513.61 J15.03 J191.8362
Gliese 445 (LHS 2459,)17.1368
Cam
M3.5 V0.1410.7912.19190.3251
2MASS J15404342−510135717.3738
Nor
M7 V0.09015.2616.63187.7290
2MASS 0939−244817.41
Ant
T8 V0.019–0.04815.61 J16.97 J187.3
[58]
binary brown dwarf
T8 V0.019–0.038
GJ 3323 (LHS 1723,)17.5309
Eri
M4 V0.170512.2213.57186.0466
has 2 known planets
Gliese 526 (Wolf 498, HD 119850)17.7263
Boo
M1 V0.288.469.78183.9962
Stein 2051 (Gliese 169.1,) A17.9925
Cam
M4 V0.25211.0412.33181.2730
B
DC50.67512.4313.72
2MASS J11145133−2618235§18.20
Hya
T7.50.029–0.04815.86 J17.12 J179.2
[59]
Gliese 251 (Wolf 294, HD 265866)18.2146
Gem
M3 V0.36010.0211.29179.0629
has 1 known planet
LP 816-6018.3305
Cap
M3.5 V0.22411.5012.75177.9312
WISE 0350−5658§18.49
Ret
Y122.47 J23.70 J176.4
[60]
LSR J1835+325918.5534
Lyr
M8.5 V0.05318.2719.50175.7930
Gliese 205 (Wolf 1453, HD 36395)18.6042
Ori
M1 V0.5567.959.17175.3131
2MASS J04151954−0935066§18.62
Eri
T80.0315.34 J16.56 J175.2
Gliese 229 (HD 42581) A18.7906
Lep
M1.5 V0.5798.149.34173.5740
has 2 known planets
T6 V0.05814.01 J15.21 J
Alsafi (Sigma Draconis)18.7993
Dra
G9 V0.854.675.87173.4939
Ross 47 (Gliese 213)18.8883
Ori
M4 V0.3511.5712.76172.6762
Gliese 570
(Lalande 27173, 33 G. Librae)
A19.1987
Lib
K4 V0.8025.646.79169.8843
BM1.5 V0.558.309.45
CM0.359.9611.11
T7.50.0515.32 J16.47 J
Gliese 693 (Luyten 205–128)19.2078
Pav
M3 V0.2610.7611.91169.8042
Gliese 754 (Luyten 347–14)19.2724
Tel
M4 V0.17312.2313.37169.2351
has 1 candidate planet
Gliese 908 (Lalande 46650, BR Piscium)19.2745
Psc
M1 V0.378.9810.12169.2163
Gliese 752 (Wolf 1055, HD 180617) A19.2922
Aql
M2.5 V0.469.1010.24169.0615
has 1 known planet

M8 V0.07517.4518.59very small and very dim red dwarf
Gliese 588 (CD-40 9712)19.2996
Lup
M2.5 V0.439.3110.45168.9965
has 2 candidate planets
Eta Cassiopeiae (Gliese 34) Achird (A)19.3314
Cas
G3 V0.9723.464.60168.7186
BK7 V0.577.518.65
36 Ophiuchi (Gliese 663) Guniibuu (A)19.4185
Oph
K1.5 V0.855.076.20167.9617
B
K1 V0.855.086.21
C
K5 V0.716.327.45
YZ Canis Minoris (Ross 882, Gliese 285)19.5330
CMi
M4 V0.30811.1912.30166.9769
WISE 1541−2250§19.54
Lib
0.01120.99 J22.10 J166.9
GJ 1005 A19.577
Cet
M3.5 V0.17911.6012.71166.6
[61]
distance uncertain: 16.28±0.75, 17.91±0.67, 17.0±1.5, 16.26±0.76, 17.26, 19.695±0.095 ly
BM V0.11214.0215.13
HR 7703 (279 G. Sagittarii, HD 191408, Gliese 783,) A19.609
Sgr
K2.5 V0.655.316.41166.3272
BM4 V0.2411.5012.60
82 G. Eridani (e Eridani, Gliese 139, HD 20794)19.7045
Eri
G8 V0.704.265.35165.5242
has 3 confirmed planets, 3 candidate planets, hot and cold dust disks
Gliese 268 (Ross 986, QY Aurigae) A19.7414
Aur
M4.5 V0.22612.0513.14165.2147
BM V0.19212.4513.54
Delta Pavonis19.893
Pav
G8 IV1.0513.554.62163.9544
has 1 candidate planet
SIMP J013656.5+093347§19.955
Psc
T2.50.01213.25 J14.32 J163.4478
rogue planet, 12.7 MJ
2MASS 0937+2931§19.96
Leo
T70.04014.65 J15.71 J163.39
[62]
SystemStar or (sub-) brown dwarfDistance
(ly (±err))

Constellation

Coordinates:
RADec
(Ep J2000, Eq J2000)
Stellar
class
Mass
M
data-sort-type="number" App.data-sort-type="number" Abs.Parallax
(mas
(±err))

[63]
Notes and additional
references
DesignationMagnitude

Distant future and past encounters

Over long periods of time, the slow independent motion of stars change in both relative position and in their distance from the observer. This can cause other currently distant stars to fall within a stated range, which may be readily calculated and predicted using accurate astrometric measurements of parallax and total proper motions, along with spectroscopically determined radial velocities. Although extrapolations can be made into the past or future, they are subject to increasingly significant cumulative errors over very long periods.[2] Inaccuracies of these measured parameters make determining the true minimum distances of any encountering stars or brown dwarfs fairly difficult.[64]

One of the first stars known to approach the Sun particularly close is Gliese 710. The star, whose mass is roughly half that of the Sun, is currently 62 light-years from the Solar System. It was first noticed in 1999 using data from the Hipparcos satellite, and was estimated to pass less than 1.3ly from the Sun in 1.4 million years.[65] With the release of Gaia's observations of the star, it has since been refined to a much closer 0.178ly, close enough to significantly disturb objects in the Oort cloud, which extends 1.2ly from the Sun.[66]

Gaia third data release has provided updated values for many of the candidates in the table below.[67] [68] [69] [70]

Stars that are known to have passed or will pass within 5 light-years of the Sun in the past or future[71] [72] [73] ! Star name! HIP
number! Minimum distance
(light-years)! Date of approach
in thousands of years! Current distance
(light-years)! Stellar classification! Mass in M! Current
apparent magnitude! Current Constellation! Current
Right ascension! Current
Declination
Gliese 71089825K7V0.4–0.6Serpens
WD 0810-353WD0.65Puppis-->
HD 7977G0V~1.2Cassiopeia
Scholz's Star and companion brown dwarf A: M9V
B: T5
A: 0.095
B: 0.063
Monoceros
2MASS J0628+1845M2.5V0.28Gemini
2MASS J0805+4624M3V0.25Lynx
CD-69 2001K4V0.61Indus
HD 49995A: F3V
B: M1V
A: 1.48
B: 0.49
8.78Canis Major
2MASS J0621-0101G5V0.9611.9Orion
LSPM J2146+3813M5V~0.15Cygnus
2MASS J0455+1144M0V0.50Orion
2MASS J0734-0637M0V0.50Monoceros
2MASS J1151-0313M3.5V0.23Virgo
UCAC4 076–006432mid K~0.6Mensa
2MASS J0120+4739M3.5V0.25Andromeda
TYC 6760–1510–1M1.5V0.58Hydra
UCAC2 15719371K4V0.66Antlia
TYC 1662–1962–1Early K~0.8Vulpecula
HD 17993994512A3V1.7Aquila
BD-21 1529G5V~0.95Canis Major
2MASS J1310-1307M2.5V0.34Virgo
UPM J1121-5549M3V0.29Centaurus
UCAC4 464–006057Early M~0.4Taurus
UCAC4 213–008644M5.00.17Puppis
GJ 3649M10.49Leo
Ross 248M6V0.136Andromeda
2MASS J1921-1244K6V0.69Sagittarius
Proxima Centauri70890M5Ve0.15Centaurus
TYC 9387–2515–1K1V0.86Mensa
Alpha Centauri ABA: 71683
B: 71685
A: G2V
B: K1V
A: 1.100
B: 0.907[74]
A: -0.01
B: +1.33
Centaurus
Gliese 44557544M40.15?Camelopardalis
2MASS J1638-6355K2V0.82Triangulum Australe
2MASS J0542+3217A: G4V
B: K0V
A: 1.01
B: 0.85
Auriga
2MASS J0625-2408K/M~0.5Canis Major
Barnard's Star87937sdM40.144Ophiuchus
BD+05 1792G2V1.07Gemini
2MASS J2241-2759K7V~0.5Piscis Austrinus
2MASS J1724-0522K0V0.86Ophiuchus
StKM 1–554M0V0.65Orion
GJ 3379M3.5V0.19Orion
2MASS J1936+3627G5.5V0.9512.2Cygnus
2MASS J0710+5228M3V0.33Lynx
HD 146248G2/3IV1.23Triangulum Australe
2MASS J1724+0355G8V0.85Ophiuchus
StKM 1–1456A: K5V
B: M8V
A: 0.81
B: 0.09
Hercules
Zeta Leporis27288A2Vann2.0Lepus
Lalande 2118554035M2V0.39Ursa Major
HD 6881440317G6V0.98Hydra
2MASS J1941-4602M4-M6~0.15Telescopium

See also

Related lists

External links

Notes and References

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