List of largest stars

From Wikipedia, the free encyclopedia

Below are lists of the largest stars currently known, ordered by radius and separated into categories by galaxy. The unit of measurement used is the radius of the Sun (approximately 695,700 km; 432,300 mi).[1]

The sizes of large stars, with the orbits of Earth and Jupiter for comparison.

Overview

Although red supergiants are often considered the largest stars, some other star types have been found to temporarily increase significantly in radius, such as during LBV eruptions or luminous red novae. Luminous red novae appear to expand extremely rapidly, reaching thousands to tens of thousands of solar radii within only a few months, significantly larger than the largest red supergiants.[2]

Some studies use models that predict high-accreting Population III or Population I supermassive stars (SMSs) in the very early universe could have evolved "red supergiant protostars". These protostars are thought to have accretion rates larger than the rate of contraction, resulting in lower temperatures but with radii reaching up to many tens of thousands of R☉, comparable to some of the largest known black holes.[3][4][5]

Angular diameters

The angular diameters of stars can be measured directly using stellar interferometry. Other methods can use lunar occultations or from eclipsing binaries, which can be used to test indirect methods of finding stellar radii. Only a few supergiants can be occulted by the Moon, including Antares and 119 Tauri. Examples of eclipsing binaries are Epsilon Aurigae (Almaaz), VV Cephei, and V766 Centauri (HR 5171). Angular diameter measurements can be inconsistent because the boundary of the very tenuous atmosphere (opacity) differs depending on the wavelength of light in which the star is observed.[citation needed]

Uncertainties remain with the membership and order of the lists, especially when deriving various parameters used in calculations, such as stellar luminosity and effective temperature. Often stellar radii can only be expressed as an average or be within a large range of values. Values for stellar radii vary significantly in different sources and for different observation methods.[6]

All the sizes stated in these lists have inaccuracies and may be disputed. The lists are still a work in progress and parameters are prone to change.

Caveats

Various issues exist in determining accurate radii of the largest stars, which in many cases do display significant errors. The following lists are generally based on various considerations or assumptions; these include:

  • Stellar radii or diameters are usually derived only approximately using the Stefan–Boltzmann law for the deduced stellar luminosity and effective surface temperature.
  • Stellar distances, and their errors, for most stars, remain uncertain or poorly determined.
  • Many extended supergiant atmospheres also significantly change in size over time, regularly or irregularly pulsating over several months or years as variable stars. This makes adopted luminosities poorly known and may significantly change the quoted radii.
  • Other direct methods for determining stellar radii rely on lunar occultations or from eclipses in binary systems. This is only possible for a very small number of stars.[7]
  • Many distance estimates for red supergiants come from stellar cluster or association membership, because it is difficult to calculate accurate distances for red supergiants that are not part of any cluster or association.
  • In these lists are some examples of extremely distant extragalactic stars, which may have slightly different properties and natures than the currently largest known stars in the Milky Way. For example, some red supergiants in the Magellanic Clouds are suspected to have slightly different limiting temperatures and luminosities. Such stars may exceed accepted limits by undergoing large eruptions or changing their spectral types over just a few months (or potentially years).[8][9]

Lists

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by editing the page to add missing items, with references to reliable sources.

The following lists show the largest known stars based on the host galaxy.

Milky Way

More information Star name, Solar radius (R☉) ...
List of the largest known stars in the Milky Way
Star name Solar radius (R☉) Method[a] Notes
Orbit of Saturn 2,047–2,049.9[10][b] Reported for reference
Theoretical limit of star size (Milky Way) ≳1,700[11] L/Teff Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of supernova progenitor candidates. Assumes an effective temperature of 3,605 K.
Reported for reference
WOH G64 A (For comparison) 1,540[12][13][14][15][16] ± 77[12] L/Teff Located in the Large Magellanic Cloud.

Possibly the largest known star.[12][13][17][14]

RSGC1-F01 (FMR2006 1) 1,530+330
−424[18]		 L/Teff
RSGC1-F04 (FMR2006 4) 1,422+305
−390[18]		 L/Teff
VY Canis Majoris 1,420±120[19][20][21] AD An extreme oxygen-rich red hypergiant that has experienced two dimming periods in the 20th century, where the star became dimmer by up to 2.5 magnitudes.[22] Potentially the largest known star.[20] There is a possibility that this size might be a bit overestimated (on the order of 1 sigma). Hence, the quoted radius might be just an upper limit.[19]
AH Scorpii 1,411±124[23][24] AD Its angular diameter was re-measured at 5.05 ± 0.5 mas in 2023, which would yield a smaller radius of 1,227 R☉.[25]
CD–34°11794 1,409[26] L/Teff Oxygen-rich[27] red supergiant[28] and OH/IR star.[29]
RSGC1-F06 (FMR2006 6) 1,382+298
−384[18]		 L/Teff
S Persei 1,364±6[30] AD Oxygen-rich[27][31] red supergiant.[32] Also called a hypergiant.[33]
VX Sagittarii 1,360+250
−230[34] or 1,480+180
−160[24]		 AD Either a very late-type red supergiant,[35][36] a particualarly large Super-AGB star,[34] or a possible but unlikely Thorne-Zyktow object.[34] Widely recognized as being among the largest known stars.[37]
NML Cygni <1,350+195
−229[c]		 AD Surrounding dusty region is very complex making the radius hard to determine.[38]
Stephenson 2 DFK 2 1,300 ± 300[18] L/Teff Another red supergiant, Stephenson 2 DFK 1 has an estimated radius of 2,150 R☉. However, it is potentially not a member of the Stephenson 2 cluster and since its distance has been derived from its radial velocity, discrepancy with a trigonometric distance may be over 50%.[18][39]
Stephenson 2 DFK 49 1,300 ± 300[18] L/Teff A K-type star similar to the yellow hypergiant IRC +10420 that has left its red supergiant stage.[18]
HD 143183 (V558 Normae) 1,261[26] L/Teff
PZ Cassiopeiae 1,259 – 1,336[40] L/Teff & AD
Garnet Star (μ Cephei) 1,259,[41] 1,420[42] or ~RBetelgeuse L/Teff & AD Widely recognised as being among the largest known stars.[37] Might be the largest star visible to the naked eye.[43] The higher radii estimate assume Mu Cephei is in the Cepheus OB2 OB association.[41][44] Other sources suggest Mu Cephei and Betelgeuse are likely similar in properties.[45][46] If so, Mu Cephei's radius would be comparable to that of Betelgeuse, which is between 650 and 800 R☉.
RSGC1-F10 (FMR2006 10) 1,246+264
−337[18]		 L/Teff
V354 Cephei 1,245[26] L/Teff
Westerlund 1 W237 (Westerlund 1 BKS B) 1,241±70,[47] 888[26] L/Teff Possibly a foreground giant.[48]
ST Cephei 1,218[26] L/Teff
IRC -30312 1,204[26] L/Teff
IRC -10414 ~1,200[49] L/Teff
RSGC1-F05 (FMR2006 5) 1,185+254
−325[18]		 L/Teff
V517 Monocerotis 1,196+80
−159[50] – 1,208[26]		 L/Teff
GCIRS 7 1,170±60,[51] 1,359,[52] 1,368[53] AD & L/Teff
Westerlund 1 W26 (Westerlund 1 BKS AS) 1,165±58–1,221±120[47] L/Teff
[A72c] 16 1,157[26] L/Teff
WY Velorum A 1,157[26] L/Teff A symbiotic binary.[54]
RSGC1-F08 (FMR2006 8) 1,150+234
−297[18]		 L/Teff
IRC -30303 1,147[26] L/Teff
RSGC1-F02 (FMR2006 2) 1,128+238
−303[18]		 L/Teff
Orbit of Jupiter 1,114.5–1,115.8[10][b] Reported for reference
V582 Cassiopeiae 1,111[26] L/Teff
RW Cygni 1,103+251
−177[55]		 AD
RW Cephei 1,100±40[56] AD A K-type hypergiant star that experienced a "great dimming" event in 2022, similar to Betelgeuse.
RT Carinae 1,090[42] L/Teff
UU Persei 1,079+9
−8[50]		 L/Teff
LL Pegasi 1,070[57] L/Teff
HD 126577 1,066+9
−32[50]		 L/Teff
V766 Centauri Aa 1,060–1,160[58] ? V766 Centauri Aa is a rare variable yellow hypergiant.
HaroChavira 11,058[59]L/Teff
EV Carinae 1,057[26] L/Teff Red supergiant.[60] An older study suggests an extremely high radius of 2,877 R☉.[61]
CM Velorum 1,048[26] – 1,416.24+0.40
−0.96[50]		 L/Teff
AG Camelopardalis 1,048[26] L/Teff
SU Persei 1,044+31
−21 – 1,139+34
−23,[30]		 AD
SW Cephei 1,035+75
−120[62]		 AD
KY Cygni1,032[59]L/Teff
RSGC1-F11 (FMR2006 11) 1,032+210
−267[18]		 L/Teff
BC Cygni 1,031[59] – 1,187+34
−37,[50] 1,062[26]		 L/Teff A more detailed but older study gives values of 1,081 R☉ (856–1,375) for the year 2000, and 1,303 R☉ (1,021–1,553) for the year 1900.[63]
MY Cephei 1,028 ± 169 – 1,138 ± 387[64][d] L/Teff
V346 Puppis1,025[65]L/Teff
V530 Cassiopeiae 1,017[26] L/Teff
V602 Carinae 1,015[66] AD
VV Cephei A 1,015[67] AD A red supergiant star orbited by a smaller B-type main-sequence star with a radius estimated between 13[68] and 25 R☉.[69] Widely recognised as being among the largest known stars.[37] Another estimate give a radius of 660 R☉[26] based on the Gaia DR3 distance of 1 kpc.[50]
U Lacertae A 1,013[26] L/Teff
RSGC1-F13 (FMR2006 13) 1,017+221
−286[18]		 L/Teff
KW Sagittarii 1,009±142[23][24] AD
Ve 4-64 1,007[26] L/Teff
RSGC1-F07 (FMR2006 7) 1,007+215
−276[18]		 L/Teff
V349 Carinae 1,002+12
−74[50]		 L/Teff
V674 Cephei 999[26] L/Teff
RSGC1-F09 (FMR2006 9) 996+210
−269[18]		 L/Teff
CZ Hydrae990[70]L/Teff
IRAS 18111-2257 ~990 – 1,200[71] L/Teff Estimated based on the bolometric luminosity (14,000–20,000 L☉) and assumed effective temperature of 2,000 K. Another period-luminosity-derived luminosity for this star results in a radius of 1,730 R☉.[71]
CIT 11 982[26] L/Teff
V381 Cephei Aa 977[26] L/Teff
MSX6C G086.5890–00.7718 (975+175
−183 – 1,035+186
−158)[72] – 1,196.91+6.31
−6.35[50]		 L/Teff Lower values based on the Gaia DR3 effective temperature and the luminosity of Levesque et al. (2005) and that of Messineo & Brown (2019). Higher value based on the GSP Phot-Aeneas library using BR/RP spectra in Gaia DR3.
Stephenson 2 DFK 3970 ± 210[18]L/Teff
V3953 Sagittarii (IRC −30398)970[73]L/Teff
V396 Centauri 965[26] L/Teff
UW Aquilae 964[26] L/Teff
RSGC1-F12 (FMR2006 12) 955+204
−262[18]		 L/Teff
RSGC1-F03 (FMR2006 3) 942+179
−222[18]		 L/Teff
V398 Cassiopeiae (HD 240275) 941[26] L/Teff
IRC +60342 940[26] L/Teff
ψ1 Aurigae 934[26] – 1,004[74] L/Teff
GX Monocerotis931[73]L/Teff
V645 Cephei 920[26] L/Teff
S Cassiopeiae920[73]L/TeffOne of the coolest known stars, at an effective temperature of 1,800 K (1,500 °C).
NV Aurigae (IRC +50137)918[73]L/Teff
Stephenson 2 DFK 5910 ± 180[18]L/Teff
UY Scuti 909[26] L/Teff Once thought to be 1,708 ± 192 R☉[23] or 1,943 R☉.[61]
NR Vulpeculae 908[26] – 923+62
−50[62]		 L/Teff
KU Andromedae (IRC +40004) 900[75] – 1,040[73] L/Teff
V774 Sagittarii 889[26] L/Teff
V923 Centauri 881[26] L/Teff
IRAS 20341+4047 880[26] L/Teff
IRAS 17418−2713 880[76] L/Teff
V540 Sagittarii 880[26] L/Teff
V386 Cephei 879[26] L/Teff
Trumpler 27-1 (CD–33°12241) 876+5
−12[50]		 ?
T Lyrae880[73]L/Teff
TYC 3996-552-2 870[26] L/Teff
V1417 Aquilae900[77]L/Teff
V1300 Aquilae (IRC −10529) 860[75] – 1,100[73] L/Teff
Westerlund 1 W20 (Westerlund 1 BKS D) 858±48[47] L/Teff
FX Serpentis857[65]L/Teff
AZ Cygni 856+20
−14 – 927+21
−15[30]		 AD Estimated based on data from the CHARA array. Other radii of 890+21
−15 R☉ (2014), 895+21
−15 R☉ (2015) and 890+21
−15 R☉ (2016) are calculated based on the same data.[30]
V348 Velorum 855[26] L/Teff
BI Cygni 852+12
−9 – 908+12
−10[30]		 AD
TW Carinae 835[26] L/Teff
V358 Cassiopeiae 835[26] L/Teff
VLH96 A833[78]L/Teff
DO 26226 826[26] L/Teff
HD 155737 823[26] L/Teff
6 Geminorum 821[30] L/Teff
RW Leonis Minoris 820[79] – 1,000[73] L/Teff
HaroChavira 2813[59]L/Teff
HD 300933 806[26] L/Teff
[W61c] R 53 801[26] L/Teff
RT Ophiuchi 801±217[80] AD
HD 95687 797[26] L/Teff
BO Carinae 790±158[42] L/Teff
HD 62745 790[26] L/Teff
WX Piscium 790[81] – 1,000[73] L/Teff
VR5–7 775 ± 65[82] L/Teff
T Cancri770[65]L/Teff
V Cygni 770[77] L/Teff
BD+63 3 770[26] L/Teff
CL Carinae 770[26] L/Teff
RS Persei 770±30,[83] 775+110
−85[62]		 AD
V355 Cephei 770±154[42] – 790[26] L/Teff
BD+63 270 769[26] L/Teff
V644 Cephei 765[26] L/Teff
BM VIII 11 754[26] L/Teff
[SLN74] 2130 752[26] L/Teff
IRAS 10176-5802 751.2+0.4
−0.6[50] – (793+281
−152–849+172
−133)[72]		 L/Teff Lower value based on the GSP Phot-Aeneas library using BR/RP spectra in Gaia DR3. Higher values based on the Gaia DR3 effective temperature and the luminosity of Levesque et al. (2005) and that of Messineo & Brown (2019).
HD 303250 750±150[42] L/Teff
V384 Persei 750[75] – 940[73] L/Teff
V466 Persei750[79]L/Teff
V Coronae Borealis750[75]L/Teff
GY Aquilae 748[24] – 920[84] AD
UU Pegasi 742±193[80] AD
IM Cassiopeiae 740[26] L/Teff
GY Camelopardalis740[75]L/Teff
R Andromedae730[75]L/Teff
RSGC3-S3730 ± 150[18]L/Teff
TT Centauri740[73]L/Teff
Stephenson 2 DFK 10 730[18] L/Teff
V1259 Orionis730[70]L/Teff
RSGC3-S15730 ± 140[18]L/Teff
VdBH 222#566 725[85] L/Teff May be larger at 912 R☉, however this is unlikely due to the luminosity does not match with the H-R diagram where the temperature was calculated.
HD 105563 A 723[26] L/Teff
Westerlund 1 W75 (Westerlund 1 BKS E) 722±36[47] L/Teff
AI Volantis720[75]L/Teff
V1111 Ophiuchi (IRC +10365) 720[75] – 900[73] L/Teff
XX Persei 718+80
−56[62]		 AD
RX Telescopii 716[26] L/Teff
V Camelopardalis 716±185[80] AD
CD–61°3575 716[26] L/Teff
S Cephei715[65]L/Teff
AS Cephei 713[26] L/Teff
V770 Cassiopeiae (BD+60 299) 713[26] L/Teff
AZ Cephei 712[26] L/Teff
R Leporis (Hind's Crimson Star) 710 – 910[86] AD
MZ Puppis 708[26] L/Teff
GP Cassiopeiae 707[26] – 771.74+0.23
−0.86[50]		 L/Teff
GCIRS 12N 703 ± 107[82] L/Teff
V528 Carinae 700±140[42] L/Teff
The following well-known stars are listed for the purpose of comparison.
Antares (α Scorpii A) 680[87] AD Fourteenth brightest star in the night sky.[88] Widely recognised as being among the largest known stars.[37]
Betelgeuse (α Orionis) 640,[89] 764+116
−62,[90] 782 ± 55[91]		 AD & SEIS Tenth brightest star in the night sky.[88] Widely recognised as being among the largest known stars,[37] radius decreased to ~500 R☉ during the 2020 great dimming event.[92]
R Horologii 630[75] L/Teff A red giant star with one of the largest ranges in brightness known of stars in the night sky visible to the unaided eye. Despite its large radius, it is less massive than the Sun.
V382 Carinae 616±69[93] AD A yellow hypergiant, one of the rarest types of stars.
119 Tauri (CE Tauri, Ruby Star) 587 – 593[94] AD
ρ Cassiopeiae 564±67 or 700±112[95] AD A yellow hypergiant star, similar to V382 Carinae, that is also visible to the naked eye.
CW Leonis 560[96] L/Teff The nearest carbon star.
V838 Monocerotis 464[97] L/Teff During the 2002 Red Nova, the star's radius may have increased up to 3,190 R☉.[98]
V509 Cassiopeiae 449±20[93] AD A variable yellow hypergiant whose size varied from around 680 R☉ in 1950–1970 to 910 R☉ in 1977, and later decreased to 390 R☉ in the 1990s.[99]
Pistol Star (V4647 Sagittarii) 420[100] L/Teff One of the most luminous stars known.
La Superba (Y Canum Venaticorum)344[101]L/Teff
Mira (ο Ceti A) 332–402[102] AD Prototype of the Mira variables.
Orbit of Mars 322–323.1[10][b] Reported for reference
R Doradus 298±21[103] AD The extrasolar star with the largest apparent size.
Rasalgethi (α Herculis A) 284±60 (264–303)[104] L/Teff
Cygnus OB2#12 246[105] ? One of the most massive and luminous stars known.
Orbit of Earth (~1 AU) 214[10][b] Reported for reference
Suhail (λ Velorum) 211±6[106] AD
Wezen (δ Canis Majoris) 188[107] L/Teff Thirty-sixth brightest star in the night sky.[88]
Enif (ε Pegasi) 178[107] L/Teff
Orbit of Venus 158.6[10][b] Reported for reference
η Carinae A 128 – 742[108] OD During the 1843 Great Eruption, the star's radius may have increased up to 4,319–6,032 R☉.[109]
Deneb (α Cygni) 107[110][e] – 203±17[111] AD & ? Eighteenth brightest star in the night sky.[88]
Orbit of Mercury 82.9–84.6[10][b] Reported for reference
Rigel (β Orionis A) 74.1+6.1
−7.3[112]		 AD Seventh brightest star in the night sky.
Canopus (α Carinae) 73.3[113] AD Second brightest star in the night sky.
Gacrux (γ Crucis) 73[114] L/Teff Twenty-sixth brightest star in the night sky.
Polaris (α Ursae Minoris) 46.27±0.42[115] AD The current star in the North Pole. It is a Classical Cepheid variable, and the brightest example of its class.
Aldebaran (α Tauri A) 45.1±0.1[116] AD Fourteenth brightest star in the night sky.
Arcturus (α Boötis) 25.4 ± 0.2[117] AD This is the nearest red giant to the Earth, and the fourth brightest star in the night sky.
Pollux (β Geminorum) 9.06 ± 0.03[112] AD The nearest giant star to the Earth.
Spica (α Virginis A) 7.47±0.54[118] One of the nearest supernova candidates and the sixteenth-brightest star in the night sky.
Regulus (α Leonis A) 4.16 × 3.14[119] The nearest B-type star to the Earth.
Vega (α Lyrae) 2.726±0.006 × 2.418±0.012[120] AD Fifth brightest star in the night sky.[88]
Altair (α Aquilae) 2.01 × 1.57[121] Twelfth brightest star in the night sky.
Sirius (α Canis Majoris A) 1.713[122] AD The brightest star in the night sky.
Rigil Kentaurus (α Centauri A) 1.2175[123] AD Third brightest star in the night sky.
Sun 1 The largest object in the Solar System.
Close

Magellanic Clouds

More information Star name, Solar radius (R☉) ...
List of the largest known stars in the Magellanic Clouds
Star name Solar radius (R☉) Galaxy Method[a] Notes
Theoretical limit of star size (Large Magellanic Cloud) ≳1,550[11] L/Teff Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3,545 K.
Reported for reference
WOH G64 A 1,540[12][13][14][15][16] ± 77[12] Large Magellanic Cloud L/Teff Surrounded by a large dust cloud.[124] Possibly the largest known star.[12][13][17][14]
HV 888 (WOH S140) 1,477[125]–1,509[126] Large Magellanic Cloud L/Teff
HD 269551 A1,439[127]Large Magellanic CloudL/Teff
HV 124631,420[127]Large Magellanic CloudL/Teff
IRAS 05280–6910 1,367[128] Large Magellanic Cloud L/Teff The most reddened object in the Large Magellanic Cloud.[15]
OGLE BRIGHT-LMC-LPV-521,275[127]–1,384[129]Large Magellanic Cloud
MSX LMC 597 1,243[127] – 1,444[15] Large Magellanic Cloud L/Teff
IRAS 05346-6949 1,211[130] Large Magellanic Cloud L/Teff It has an estimated mass-loss rate of 0.0017 M☉ (566 Earths) per year, the highest for any star.[130]
HV 56181,163[127]Large Magellanic CloudL/Teff
HV 2242 1,160[131] – 1,180[127] Large Magellanic Cloud L/Teff
LMC 253201,156[127]Large Magellanic CloudL/Teff
SMC 185921,129[127]Small Magellanic CloudL/Teff
MSX SMC 018 1,119[130] Small Magellanic Cloud L/Teff
LMC2521,117[127]–1,164[129]Large Magellanic Cloud
LMC0451,112[127]Large Magellanic CloudL/Teff
SP77 21-121,103[127]Large Magellanic CloudL/Teff
MSX LMC 8101,104[129]Large Magellanic CloudL/Teff
WOH S338 1,100[131] Large Magellanic Cloud L/Teff
LMC 1360421,092[127]Large Magellanic CloudL/Teff
LMC 1751881,090[127]–1,317[129]Large Magellanic Cloud
IRAS 04516-6902 1,085[128] Large Magellanic Cloud L/Teff
WOH S2741,071[127]Large Magellanic CloudL/Teff
[W60] D441,063[127]Large Magellanic CloudL/Teff
HV 122331,057[127]Large Magellanic CloudL/Teff
MSX LMC 589 1,051[129] Large Magellanic Cloud L/Teff
Theoretical limit of star size (Small Magellanic Cloud) ≳1,050[11] L/Teff Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3,850 K.
Reported for reference
MSX LMC 9471,050[129]Large Magellanic CloudL/Teff
LMC 1442171,039[127]Large Magellanic Cloud
SP77 31-181,038[127]Large Magellanic CloudL/Teff
IRAS 05402-6956 1,032[128] Large Magellanic Cloud L/Teff
IRAS 04509-6922 1,027[128]–1,187[129] Large Magellanic Cloud L/Teff
HV 22551,027[127]–1,236[129]Large Magellanic Cloud
TRM 361,019[127]Large Magellanic CloudL/Teff
Sk -69 148 1,006[132] Large Magellanic Cloud L/Teff A yellow hypergiant.
LMC 1755491,005[127]Large Magellanic CloudL/Teff
TRM 891,004[127]–1,526[129]Large Magellanic Cloud
B90 (WOH S264) 1000+70
−80 – 1,210[133]		 Large Magellanic Cloud L/Teff Has an unusually high metallicity and velocity.[133] Often referred to as its SIMBAD designation [W60] B90.
Discrepancy in radius is caused by a potential underestimation of the effective temperature measured from the Titanium(II) oxide bands.
HV 2450 1,000+2
−1[134]–1,071[134]		 Large Magellanic Cloud L/Teff A yellow hypergiant.
LMC 149767994[127]Large Magellanic CloudL/Teff
UCAC2 2674864 (HV 2834) 990+115
−100[13]		 Large Magellanic Cloud L/Teff
HV 996988[127]–1,176[129]Large Magellanic Cloud
W61 8–88986[127]Large Magellanic CloudL/Teff
HV 2362 982[127] – 1,030[131] Large Magellanic Cloud L/Teff
MG73 59 979[135] Large Magellanic Cloud L/Teff A yellow supergiant.
HD 268757 979[135] Large Magellanic Cloud L/Teff A G8 yellow hypergiant.
SMC 56389976[127]Small Magellanic CloudL/Teff
LMC 136404974[127]Large Magellanic CloudL/Teff
SP77 46-32973[127]–1,133[129]Large Magellanic Cloud
HV 2084967[127]–1,083[129]Small Magellanic Cloud
WOH S74965[127]–1,014[129]Large Magellanic CloudL/Teff
SMC 10889963[127]Small Magellanic CloudL/Teff
TRM 67951[127]Large Magellanic CloudL/Teff
LHA 120-S 26951[127]Large Magellanic CloudL/Teff
LMC 139413951[127]Large Magellanic CloudL/Teff
TRM 87947[127]Large Magellanic CloudL/Teff
LMC 148035947[127]Large Magellanic CloudL/Teff
HV 12802946[127]–1,377[129]Large Magellanic Cloud
SMC 018136945[127]Small Magellanic CloudL/Teff
LMC 142202943[127]Large Magellanic CloudL/Teff
LMC 147199 939[127] – 990[131] Large Magellanic Cloud L/Teff
SP77 37-24936[127]Large Magellanic CloudL/Teff
LMC 148381932[127]Large Magellanic CloudL/Teff
LMC 23095 926[129] – 1,280[127] Large Magellanic Cloud L/Teff
SP77 31-16 923±28[134] Large Magellanic Cloud L/Teff A yellow hypergiant.
LMC 170452920[127]Large Magellanic CloudL/Teff
SP77 44-5918[127]Large Magellanic CloudL/Teff
LMC 66778 915[127] – 990[131] Large Magellanic Cloud L/Teff
NGC371 R20913[136]Small Magellanic CloudL/Teff
LMC 150040911[127]Large Magellanic CloudL/Teff
HV 2236911[127]–971[129]Large Magellanic CloudL/Teff
TRM 108906[127]Large Magellanic CloudL/Teff
LMC 169142902[127]Large Magellanic CloudL/Teff
WOH S457 902±45[137] Large Magellanic Cloud L/Teff
IRAS 04498-6842 (LI-LMC 60) 898[128] – 1,137[129] – 1,765,[15] 1,224[127] Large Magellanic Cloud L/Teff Lower value derived from fitting models that assume the star's effective temperature to be 3,400 K. Higher value based on the measured effective temperature from van Loon et al. (2005). A newer paper estimates parameters that would result in a radius of 1,765 R☉.[15]
LMC 135720898[127]Large Magellanic CloudL/Teff
SMC 81961892[127]Small Magellanic CloudL/Teff
SP77 44-19891[127]–1,297[129]Large Magellanic CloudL/Teff
SP77 45–49890[127]Large Magellanic CloudL/Teff
LMC 175464892[129]–982[127]Large Magellanic Cloud
SMC 49478888[127]Small Magellanic CloudL/Teff
HV 12185 890+55
−65[13]		 Large Magellanic Cloud L/Teff
SP77 45–53885[129]–981[127]Large Magellanic Cloud
LMC 170079882[127]Large Magellanic CloudL/Teff
SMC 5092880[127]Small Magellanic CloudL/Teff
HV 12793 880+45
−65[13]		 Large Magellanic Cloud L/Teff
W61 21–22877[127]Large Magellanic CloudL/Teff
SP77 35-1877[127]Large Magellanic CloudL/Teff
UCAC3 43-23216873[127]Large Magellanic CloudL/Teff
HV 11423872[127]Small Magellanic CloudL/Teff
WOH S57 875+70
−60[13]		 Large Magellanic Cloud L/Teff
SP77 53-3870[127]Large Magellanic CloudL/Teff
SP77 36-14870[127]Large Magellanic CloudL/Teff
SP77 31-19870[127]Large Magellanic CloudL/Teff
LMC 158646865[127]Large Magellanic CloudL/Teff
SP77 31-20864[127]Large Magellanic CloudL/Teff
LMC 113364864[127]Large Magellanic CloudL/Teff
SMC 83202864[127]Small Magellanic CloudL/Teff
LMC 175746863[127]Large Magellanic CloudL/Teff
LMC207863[127]Large Magellanic CloudL/Teff
SP77 29-8858[127]Large Magellanic CloudL/Teff
SP77 54-38859[129]–911[127]Large Magellanic Cloud
LMC 174714855[127]–965[129]Large Magellanic Cloud
LMC 176135854[127]Large Magellanic CloudL/Teff
LMC178845[127]Large Magellanic CloudL/Teff
SP77 31-26845[127]Large Magellanic CloudL/Teff
LMC 106201844[127]Large Magellanic CloudL/Teff
SP77 48-13838[127]Large Magellanic CloudL/Teff
MSX LMC 1318837[127]Large Magellanic CloudL/Teff
SP77 28-13835[127]Large Magellanic CloudL/Teff
LMC 143898833[127]Large Magellanic CloudL/Teff
TYC 9161-866-1833[127]Large Magellanic CloudL/Teff
SMC 59803829[127]Small Magellanic CloudL/Teff
LMC 157401828[127]Large Magellanic CloudL/Teff
SP77 39-22828[127]Large Magellanic CloudL/Teff
WOH S52828[127]Large Magellanic CloudL/Teff
SP77 30-22826[127]Large Magellanic CloudL/Teff
LMC 145728826[127]Large Magellanic CloudL/Teff
LMC 169049825[127]Large Magellanic CloudL/Teff
SP77 46-34825[127]Large Magellanic CloudL/Teff
LMC 177997825[129]–867[127]Large Magellanic Cloud
SP77 28-2 825±60[13] Large Magellanic Cloud L/Teff
SP77 22-9 823[127] – 850[131] Large Magellanic Cloud L/Teff
Z Doradus 824±108[137]–956[129] Large Magellanic Cloud L/Teff
WOH S421822[127]–840[129]Large Magellanic Cloud
LMC 72727822[127]Large Magellanic CloudL/Teff
SP77 37-28821[127]Large Magellanic CloudL/Teff
MSX LMC 575816[127]–933[129]Large Magellanic Cloud
LMC 143035815[127]Large Magellanic CloudL/Teff
WOH S49815[127]Large Magellanic CloudL/Teff
SP77 52-28812[127]Large Magellanic CloudL/Teff
SHV 0520422-693821808[127]Large Magellanic CloudL/Teff
HD 268850808[129]–898[127]Large Magellanic Cloud
SMC 20133809[129]–835[127]Small Magellanic Cloud
SMC 25888804[127]Small Magellanic CloudL/Teff
SP77 55-20803[127]Large Magellanic CloudL/Teff
PGMW 1058800[127]Large Magellanic CloudL/Teff
LMC 145112798[127]Large Magellanic CloudL/Teff
SMC 47757795[127]Small Magellanic CloudL/Teff
LMC 175709794[127]Large Magellanic CloudL/Teff
SMC 46497794[127]Small Magellanic CloudL/Teff
WOH S60789[127]Large Magellanic CloudL/Teff
WOH S102789[127]Large Magellanic CloudL/Teff
LMC 164709787[127]Large Magellanic CloudL/Teff
SP77 31-28787[127]Large Magellanic CloudL/Teff
TRM 73787[129]–816[127]Large Magellanic Cloud
SP77 31-21784[127]Large Magellanic CloudL/Teff
SMC 8930784[127]Small Magellanic CloudL/Teff
PMMR 62784[127]Small Magellanic CloudL/Teff
SP77 46-31782[127]Large Magellanic CloudL/Teff
LMC211780[127]Large Magellanic CloudL/Teff
LMC 140403778[127]Large Magellanic CloudL/Teff
LMC 134383778[127]–803[129]Large Magellanic CloudL/Teff
SP77 47-11778[127]Large Magellanic CloudL/Teff
SP77 40-7 778[127] – 810[131] Large Magellanic Cloud L/Teff
W61 19–24 780+50
−70[13]		 Large Magellanic Cloud L/Teff
WOH S28 780[131] Large Magellanic Cloud L/Teff
LMC 141568776[127]Large Magellanic CloudL/Teff
SP77 51-2776[127]Large Magellanic CloudL/Teff
SP77 31–43773[127]Large Magellanic CloudL/Teff
MSX LMC 833773[127]–849[129]Large Magellanic Cloud
SP77 52-32772[127]Large Magellanic CloudL/Teff
SP77 22-10767[127]Large Magellanic CloudL/Teff
SP77 48-6 768[138] Large Magellanic Cloud L/Teff
SMC 12322765[127]Small Magellanic CloudL/Teff
WOH S517764[127]Large Magellanic CloudL/Teff
WOH S183763[127]Large Magellanic CloudL/Teff
LMC256762[127]Large Magellanic CloudL/Teff
LMC 154311762[127]Large Magellanic CloudL/Teff
LMC 119219762[127]Large Magellanic CloudL/Teff
WOH S452 762±275[137] Large Magellanic Cloud L/Teff
MSX SMC 024761[129]Large Magellanic CloudL/Teff
WOH S282758[127]Large Magellanic CloudL/Teff
LMC 64048758[127]Large Magellanic CloudL/Teff
PGMW 3160758[127]Large Magellanic CloudL/Teff
WOH S438 757±211[137] Large Magellanic Cloud L/Teff
LMC 61753755[127]Large Magellanic CloudL/Teff
LMC 140296754[127]Large Magellanic CloudL/Teff
WOH S478753[127]Large Magellanic CloudL/Teff
LMC 139027 751[127] – 790[131] Large Magellanic Cloud L/Teff
SP77 45-16 749[127] – 800[131] Large Magellanic Cloud L/Teff
SP77 37-20749[127]Large Magellanic CloudL/Teff
SP77 54-27 750[131] – 758[127] – 800[131] Large Magellanic Cloud L/Teff
LMC 155529747[127]Large Magellanic CloudL/Teff
LMC 143877746[127]Large Magellanic CloudL/Teff
SMC 64663745[127]Small Magellanic CloudL/Teff
WOH G302745[127]Large Magellanic CloudL/Teff
TRM 65743[127]Large Magellanic CloudL/Teff
HV 12149741[127]–767[129]Small Magellanic Cloud
SMC 50840740[127]Small Magellanic CloudL/Teff
SMC 46662740[127]–874[129]Small Magellanic Cloud
SP77 29-11738[127]Large Magellanic CloudL/Teff
SMC 30616737[127]Small Magellanic CloudL/Teff
LMC 162635736[127]Large Magellanic CloudL/Teff
SP77 39-17 736[127] – 760[131] Large Magellanic Cloud L/Teff
LMC 163466734[127]Large Magellanic CloudL/Teff
HV 2310734[129]Large Magellanic CloudL/Teff
HD 269723 734±17,[134] 814[135]–829[138] Large Magellanic Cloud L/Teff A yellow hypergiant.
SP77 44-17732[127]Large Magellanic CloudL/Teff
SP77 38-5a732[127]Large Magellanic CloudL/Teff
LMC 67982730[127]Large Magellanic CloudL/Teff
LHA 120-S 129730[127]Large Magellanic CloudL/Teff
PMMR 64 730+75
−65[13]		 Small Magellanic Cloud L/Teff
SP77 51-15727[127]Large Magellanic CloudL/Teff
LMC 168757725[127]Large Magellanic CloudL/Teff
LMC 163007725[127]Large Magellanic CloudL/Teff
W61 8–14724[127]Large Magellanic CloudL/Teff
IRAS 05425-6914724[127]Large Magellanic CloudL/Teff
SMC 55188724[127]Small Magellanic CloudL/Teff
SP77 44-13721[127]Large Magellanic CloudL/Teff
MSX LMC 905719[127]Large Magellanic CloudL/Teff
LMC 147928719[127]Large Magellanic CloudL/Teff
LH 43-15 719[127] – 740[131] Large Magellanic Cloud L/Teff
PMMR 116 717[138] Small Magellanic Cloud L/Teff
LMC 123778715[127]Large Magellanic CloudL/Teff
WOH S314714[127]Large Magellanic CloudL/Teff
SP77 61-23713[127]Large Magellanic CloudL/Teff
WOH S230713[127]Large Magellanic CloudL/Teff
LMC 150396710[127]Large Magellanic CloudL/Teff
SP77 48-17709[127]Large Magellanic CloudL/Teff
LMC 165242707[127]Large Magellanic CloudL/Teff
SP77 51-19707[127]Large Magellanic CloudL/Teff
LMC 170539707[127]Large Magellanic CloudL/Teff
LMC 154729705[127]Large Magellanic CloudL/Teff
OGLE BRIGHT-LMC-LPV-101703[127]Large Magellanic CloudL/Teff
MSX SMC 055 702[136]–1,557+215
−130[129]		 Small Magellanic Cloud L/Teff A super-AGB candidate.
LMC 168290702[127]Large Magellanic CloudL/Teff
LMC180702[127]Large Magellanic CloudL/Teff
SP77 45-2702[127]Large Magellanic CloudL/Teff
SP77 48-6 700+29
−28[134]		 Large Magellanic Cloud L/Teff A yellow hypergiant.
The following well-known stars are listed for the purpose of comparison.
HV 2112 675 – 1,193[139] Small Magellanic Cloud L/Teff It has been previously considered to be a possible Thorne–Żytkow object.[139]
HV 11417 673[129]–798[127] Small Magellanic Cloud L/Teff Candidate Thorne-Zytkow object.[139]
HD 269953 647[135]–720[138] Large Magellanic Cloud L/Teff A yellow hypergiant.
HD 271182621[140]Large Magellanic CloudL/TeffA yellow hypergiant.
HD 33579 471[138] Large Magellanic Cloud L/Teff The brightest star in the Large Magellanic Cloud.
S Doradus 100[141] Large Magellanic Cloud L/Teff A luminous blue variable in the S Doradus instability strip.
HD 37974 99[142] Large Magellanic Cloud L/Teff An unusual blue hypergiant with a large dusty disk.[142]
R136a1 42.7+1.6
−0.9[143]		 Large Magellanic Cloud L/Teff One of the most luminous and most massive stars.
BAT 99-98 37.5[144] Large Magellanic Cloud L/Teff One of the most luminous and most massive stars.
HD 5980 A 24[145] Small Magellanic Cloud L/Teff A luminous blue variable and one of the most luminous stars.
Close

Andromeda (M31) and Triangulum (M33) galaxies

More information Star name, Solar radius (R☉) ...
List of the largest known stars in Andromeda and Triangulum galaxies
Star name Solar radius (R☉) Galaxy Method[a] Notes
Theoretical limit of star size (Andromeda Galaxy) ≳1,750[11] L/Teff Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3,625 K.
Reported for reference
Theoretical limit of star size (Triangulum Galaxy) ≳1,500[11] L/Teff Estimated by measuring the fraction of red supergiants at higher luminosities in a large sample of stars. Assumes an effective temperature of 3,605 K.
Reported for reference
LGGS J004428.48+415130.9 1,410[146] Andromeda Galaxy L/Teff
LGGS J013418.56+303808.6 1,363[147] Triangulum Galaxy L/Teff
LGGS J013414.27+303417.71,342[147]–1,479[127]Triangulum GalaxyL/Teff
LGGS J004514.91+413735.01,324[127]Andromeda GalaxyL/Teff
LGGS J004125.23+411208.91,302[127]Andromeda GalaxyL/Teff
LGGS J013350.62+303230.31,283[127]Triangulum GalaxyL/Teff
LGGS J004312.43+413747.11,279[127]Andromeda GalaxyL/Teff
LGGS J003951.33+405303.71,272[127]Andromeda GalaxyL/Teff
M31-1775 1,254[148] Andromeda Galaxy L/Teff
LGGS J013416.52+305155.41,227[127]Triangulum GalaxyL/Teff
LGGS J004416.83+411933.21,209[127]Andromeda GalaxyL/Teff
LGGS J004531.13+414825.71,201[127]Andromeda GalaxyL/Teff
2MASS J01343365+30465471,196[127]Triangulum GalaxyL/Teff
LGGS J013409.63+303907.61,182[127]Triangulum GalaxyL/Teff
LGGS J004133.18+411217.21,180[127]Andromeda GalaxyL/Teff
LGGS J004455.90+413035.21,172[127]Andromeda GalaxyL/Teff
LGGS J013352.96+303816.01,163[127]Andromeda GalaxyL/Teff
LGGS J004047.22+404445.51,162[127]Andromeda GalaxyL/Teff
LGGS J004254.18+414033.61,154[127]Andromeda GalaxyL/Teff
LGGS J004428.48+415130.91,130[127]Andromeda GalaxyL/Teff
LGGS J013414.27+303417.71,129[147]Triangulum GalaxyL/Teff
LGGS J004035.08+404522.31,122[127]Andromeda GalaxyL/Teff
LGGS J013341.98+302102.01,119[127]Triangulum GalaxyL/Teff
LGGS J013307.37+304543.21,119[127]Triangulum GalaxyL/Teff
M31-1515 1,112[148] Andromeda Galaxy L/Teff Within a binary star system with an OB companion.[148]
LGGS J004218.33+412633.91,111[127]Andromeda GalaxyL/Teff
LGGS J004102.54+403426.51,108[127]Andromeda GalaxyL/Teff
LGGS J013335.90+303344.51,104[127]Triangulum GalaxyL/Teff
LGGS J013358.54+303419.91,103[127]Triangulum GalaxyL/Teff
LGGS J013414.49+303511.61,102[127]Triangulum GalaxyL/Teff
LGGS J013336.64+303532.31,102[127]–1,408[147]Triangulum GalaxyL/Teff
LGGS J004259.34+413726.01,094[127]Andromeda GalaxyL/Teff
LGGS J004509.98+414627.51,089[127]Andromeda GalaxyL/Teff
LGGS J013241.94+302047.51,083[127]Triangulum GalaxyL/Teff
LGGS J004034.74+404459.61,078[127]Andromeda GalaxyL/Teff
LGGS J004059.50+404542.61,071[127]Andromeda GalaxyL/Teff
LGGS J013430.75+303218.81,067[127]Triangulum GalaxyL/Teff
LGGS J013412.27+305314.11,063[127]–1,066[147]Triangulum GalaxyL/Teff
LGGS J013328.17+304741.51,063[127]Triangulum GalaxyL/Teff
LGGS J004524.97+420727.21,059[127]Andromeda GalaxyL/Teff
LGGS J013233.77+302718.81,058[127]–1,129[147]Triangulum GalaxyL/Teff
LGGS J004125.72+411212.71,058[127]Andromeda GalaxyL/Teff
LGGS J004114.18+403759.81,058[127]Andromeda GalaxyL/Teff
M33-2747 1,057[148] Triangulum Galaxy L/Teff
LGGS J013307.60+304259.01,051[127]Triangulum GalaxyL/Teff
LGGS J004103.67+410211.81,047[127]Andromeda GalaxyL/Teff
LGGS J013305.48+303138.51,046[127]Triangulum GalaxyL/Teff
LGGS J004442.41+412649.51,040[127]Andromeda GalaxyL/Teff
LGGS J013403.87+303753.21,040[127]Triangulum GalaxyL/Teff
LGGS J013351.47+303640.31,034[127]Triangulum GalaxyL/Teff
LGGS J004306.62+413806.21,028[127]Andromeda GalaxyL/Teff
LGGS J013303.54+303201.21,027[127]–1,131[147]Triangulum GalaxyL/Teff
LGGS J004234.41+405855.91,023[127]Andromeda GalaxyL/Teff
LGGS J004051.31+404421.71,022[127]Andromeda GalaxyL/Teff
LGGS J004031.00+404311.11,011[127]Andromeda GalaxyL/Teff
LGGS J013406.20+303913.61,009[127]Triangulum GalaxyL/Teff
LGGS J013344.10+304425.11,007[127]Triangulum GalaxyL/Teff
LGGS J004307.36+405852.21,007[127]Andromeda GalaxyL/Teff
LGGS J013407.13+303929.5994[127]Triangulum GalaxyL/Teff
LGGS J013312.35+303033.9993[127]Triangulum GalaxyL/Teff
LGGS J013330.05+303145.9988[127]Triangulum GalaxyL/Teff
LGGS J013350.84+304403.1984[127]Triangulum GalaxyL/Teff
LGGS J013329.47+301848.3981[127]Triangulum GalaxyL/Teff
LGGS J004148.74+410843.0981[127]Andromeda GalaxyL/Teff
LGGS J004415.76+411750.7977[127]Andromeda GalaxyL/Teff
LGGS J004127.44+411240.7977[127]Andromeda GalaxyL/Teff
LGGS J013312.75+303946.1975[127]Triangulum GalaxyL/Teff
LGGS J004027.36+410444.9973[127]Andromeda GalaxyL/Teff
LGGS J013434.35+302627.3973[127]Triangulum GalaxyL/Teff
LGGS J013423.29+305655.0993[127]–972[147]Triangulum GalaxyL/Teff
LGGS J013319.13+303642.5970[127]Triangulum GalaxyL/Teff
LGGS J004305.77+410742.5969[127]Andromeda GalaxyL/Teff
LGGS J013403.73+304202.4965[127]–1,032[147]Triangulum GalaxyL/Teff
LGGS J004346.10+411138.8962[127]Andromeda GalaxyL/Teff
LGGS J004419.20+412343.7959[127]Andromeda GalaxyL/Teff
LGGS J013353.91+302641.8959[127]–1,008[147]Triangulum GalaxyL/Teff
LGGS J013315.23+305329.0958[127]Triangulum GalaxyL/Teff
LGGS J013315.23+305329.0956[147]Triangulum GalaxyL/Teff
LGGS J004138.35+412320.7954[127]Andromeda GalaxyL/Teff
LGGS J004419.45+411749.5950[127]Andromeda GalaxyL/Teff
LGGS J013413.95+303339.6948[127]Triangulum GalaxyL/Teff
LGGS J013336.42+303530.9947[127]Triangulum GalaxyL/Teff
LGGS J004047.82+410936.4943[127]Andromeda GalaxyL/Teff
LGGS J013258.18+303606.3943[127]Triangulum GalaxyL/Teff
LGGS J004447.74+413050.0938[127]Andromeda GalaxyL/Teff
2MASS J01343131+3046088938[127]Triangulum GalaxyL/Teff
LGGS J004346.18+411515.0936[127]Andromeda GalaxyL/Teff
LGGS J004304.62+410348.4936[127]Andromeda GalaxyL/Teff
LGGS J004458.28+413154.3933[127]Andromeda GalaxyL/Teff
LGGS J004102.82+410422.3933[127]Andromeda GalaxyL/Teff
LGGS J013344.33+303636.0932[127]Triangulum GalaxyL/Teff
LGGS J004631.49+421133.1932[127]Andromeda GalaxyL/Teff
LGGS J013321.44+304045.4932[127]–1,015[147]Triangulum GalaxyL/Teff
LGGS J013358.04+304900.1931[127]Triangulum GalaxyL/Teff
LGGS J013314.31+302952.91,067[127]–930[147]Triangulum GalaxyL/Teff
LGGS J013315.97+303153.7929[127]Triangulum GalaxyL/Teff
LGGS J004126.14+403346.5927[127]Andromeda GalaxyL/Teff
M31-1372 926[148] Andromeda Galaxy L/Teff
LGGS J004347.31+411203.6925[127]Andromeda GalaxyL/Teff
LGGS J004252.78+405627.5923[127]Andromeda GalaxyL/Teff
LGGS J013411.54+303312.6918[127]Triangulum GalaxyL/Teff
LGGS J013357.08+303817.8918[127]Triangulum GalaxyL/Teff
LGGS J003943.89+402104.6917[127]Andromeda GalaxyL/Teff
LGGS J004503.35+413026.3916[127]Andromeda GalaxyL/Teff
LGGS J013338.97+303828.9915[127]Triangulum GalaxyL/Teff
LGGS J013330.27+303510.6915[127]Triangulum GalaxyL/Teff
LGGS J004033.06+404303.1912[127]Andromeda GalaxyL/Teff
LGGS J004357.15+411136.6911[127]Andromeda GalaxyL/Teff
LGGS J004406.60+411536.6911[127]Andromeda GalaxyL/Teff
LGGS J013312.38+302453.2911[127]–952[147]Triangulum GalaxyL/Teff
LGGS J004451.76+420006.0911[127]Andromeda GalaxyL/Teff
LGGS J013322.82+301910.9934[127]–911[147]Triangulum GalaxyL/Teff
M31-504 919[148] Andromeda Galaxy L/Teff
LGGS J013355.56+304120.9908[127]Triangulum GalaxyL/Teff
LGGS J004034.40+403627.4907[127]Andromeda GalaxyL/Teff
LGGS J003910.56+402545.6906[127]Andromeda GalaxyL/Teff
LGGS J004142.43+411814.1906[127]Andromeda GalaxyL/Teff
LGGS J013316.57+303051.9902[127]Triangulum GalaxyL/Teff
LGGS J013245.59+303518.7900[127]Triangulum GalaxyL/Teff
LGGS J004034.67+404322.5898[127]Andromeda GalaxyL/Teff
LGGS J004027.65+405126.7898[127]Andromeda GalaxyL/Teff
LGGS J004322.75+411101.8895[127]Andromeda GalaxyL/Teff
LGGS J004116.47+410813.7895[127]Andromeda GalaxyL/Teff
LGGS J013306.33+303208.2894[127]Triangulum GalaxyL/Teff
LGGS J004039.12+404252.3894[127]Andromeda GalaxyL/Teff
LGGS J004433.96+415414.8893[127]Andromeda GalaxyL/Teff
M31-1414 893[148] Andromeda Galaxy L/Teff
LGGS J013454.31+304109.8891[147]Triangulum GalaxyL/Teff
LGGS J004030.64+404246.2890[127]Andromeda GalaxyL/Teff
M33-113 890[148] Triangulum Galaxy L/Teff
LGGS J004252.67+413615.2889[127]Andromeda GalaxyL/Teff
LGGS J013349.94+302928.8888[127]Triangulum GalaxyL/Teff
2MASS J01335010+3039106886[127]Triangulum GalaxyL/Teff
LGGS J013357.37+304558.7886[127]Triangulum GalaxyL/Teff
LGGS J013338.77+303532.9885[127]Triangulum GalaxyL/Teff
LGGS J013359.20+303212.1884[127]Triangulum GalaxyL/Teff
LGGS J013340.42+303131.3880[127]Triangulum GalaxyL/Teff
LGGS J004511.40+413717.8880[127]Andromeda GalaxyL/Teff
LGGS J013352.16+303902.2880[127]Triangulum GalaxyL/Teff
LGGS J004219.25+405116.4880[127]Andromeda GalaxyL/Teff
LGGS J004331.90+411145.0880[127]Andromeda GalaxyL/Teff
2MASS J01333718+3038206879[127]Triangulum GalaxyL/Teff
LGGS J013415.42+302816.4876[127]Triangulum GalaxyL/Teff
LGGS J013345.01+302105.1876[127]Triangulum GalaxyL/Teff
LGGS J004107.23+411636.8870[127]Andromeda GalaxyL/Teff
LGGS J013417.83+303356.0867[127]Triangulum GalaxyL/Teff
LGGS J004120.25+403838.1867[127]Andromeda GalaxyL/Teff
LGGS J004402.38+412114.9866[127]Andromeda GalaxyL/Teff
2MASS J01334194+3038565866[127]Triangulum GalaxyL/Teff
LGGS J013309.10+303017.8865[127]–933[147]Triangulum GalaxyL/Teff
LGGS J004429.36+412307.8862[127]Andromeda GalaxyL/Teff
LGGS J013310.20+303314.4861[127]Triangulum GalaxyL/Teff
LGGS J004404.60+412729.8860[127]Andromeda GalaxyL/Teff
LGGS J003907.69+402859.5860[127]Andromeda GalaxyL/Teff
LGGS J004219.64+412736.1859[127]Andromeda GalaxyL/Teff
LGGS J003949.31+402049.1859[127]Andromeda GalaxyL/Teff
LGGS J013310.16+302726.3855[127]Triangulum GalaxyL/Teff
LGGS J004036.97+403412.4855[127]Andromeda GalaxyL/Teff
LGGS J013343.68+304450.7855[127]Triangulum GalaxyL/Teff
LGGS J013409.10+303351.8854[127]Triangulum GalaxyL/Teff
LGGS J013407.11+303918.7854[127]Triangulum GalaxyL/Teff
LGGS J004107.11+411635.6854[127]Andromeda GalaxyL/Teff
LGGS J013400.01+304622.2852[127]Triangulum GalaxyL/Teff
LGGS J013327.14+303917.4851[127]Andromeda GalaxyL/Teff
LGGS J013339.79+304032.2850[127]Triangulum GalaxyL/Teff
LGGS J004501.30+413922.5850[127]Andromeda GalaxyL/Teff
LGGS J004450.87+412924.3850[127]Andromeda GalaxyL/Teff
LGGS J004040.69+405908.1850[127]Andromeda GalaxyL/Teff
LGGS J003942.92+402051.1850[127]Andromeda GalaxyL/Teff
2MASS J01335092+3040481850[127]Triangulum GalaxyL/Teff
LGGS J013315.19+305319.8847[127]Triangulum GalaxyL/Teff
LGGS J013416.89+305158.3845[127]–920[147]Triangulum GalaxyL/Teff
LGGS J004415.17+415640.6845[127]Andromeda GalaxyL/Teff
LGGS J004424.94+412322.3844[127]Andromeda GalaxyL/Teff
LGGS J013331.93+301952.9838[127]Triangulum GalaxyL/Teff
LGGS J004406.16+414846.4836[127]Andromeda GalaxyL/Teff
M33-453 836[148] Triangulum Galaxy L/Teff
LGGS J013445.65+303235.4835[127]Triangulum GalaxyL/Teff
LGGS J004109.39+404901.9834[127]Andromeda GalaxyL/Teff
LGGS J004423.83+414928.6833[127]Andromeda GalaxyL/Teff
LGGS J013242.31+302113.9833[147]Triangulum GalaxyL/Teff
LGGS J004030.48+404051.1833[127]Andromeda GalaxyL/Teff
LGGS J004118.29+404940.3832[127]Andromeda GalaxyL/Teff
LGGS J013414.17+304701.9831[127]Triangulum GalaxyL/Teff
LGGS J013328.89+303058.0831[127]Triangulum GalaxyL/Teff
LGGS J004107.70+403702.3831[127]Andromeda GalaxyL/Teff
LGGS J003925.67+404111.8831[127]Andromeda GalaxyL/Teff
LGGS J004306.95+410038.2826[127]Andromeda GalaxyL/Teff
LGGS J013408.81+304637.8826[127]Triangulum GalaxyL/Teff
LGGS J013345.22+303138.2826[127]Triangulum GalaxyL/Teff
LGGS J003950.65+402531.8825[127]Andromeda GalaxyL/Teff
LGGS J013427.65+305642.4825[147]Triangulum GalaxyL/Teff
M33-374 824[148] Triangulum Galaxy L/Teff
LGGS J013500.04+303703.8823[127]Triangulum GalaxyL/Teff
LGGS J004108.42+410655.3822[127]Andromeda GalaxyL/Teff
LGGS J013340.77+302108.7821[127]–820[147]Triangulum GalaxyL/Teff
LGGS J004458.57+412925.1821[127]Andromeda GalaxyL/Teff
LGGS J013309.97+302727.5973[127]Triangulum GalaxyL/Teff
LGGS J004124.81+411206.1819[127]Andromeda GalaxyL/Teff
LGGS J013401.65+303128.7819[127]Triangulum GalaxyL/Teff
LGGS J013455.65+304349.0816[127]Triangulum GalaxyL/Teff
LGGS J013310.60+302301.8816[127]Triangulum GalaxyL/Teff
LGGS J004544.71+414331.9815[127]Andromeda GalaxyL/Teff
LGGS J004119.35+410836.4813[127]Andromeda GalaxyL/Teff
LGGS J013436.65+304517.1814[127]–812[147]Triangulum GalaxyL/Teff
LGGS J013301.79+303954.3812[127]Triangulum GalaxyL/Teff
LGGS J013328.85+310041.7810[127]–909[147]Triangulum GalaxyL/Teff
LGGS J013401.08+303432.2809[127]Triangulum GalaxyL/Teff
LGGS J004036.45+403613.1808[127]Andromeda GalaxyL/Teff
LGGS J004521.53+413758.6807[127]Andromeda GalaxyL/Teff
LGGS J004432.38+415149.9807[127]Andromeda GalaxyL/Teff
LGGS J013306.95+303506.1807[147]Triangulum GalaxyL/TeffContradictory classification in literature, it has been considered a candidate LBV, a RSG or a BSG.
LGGS J013242.26+302114.1807[127]Triangulum GalaxyL/Teff
LGGS J013321.94+304112.0806[127]–829[147]Triangulum GalaxyL/Teff
LGGS J013304.56+303043.2804[127]Triangulum GalaxyL/Teff
LGGS J004331.73+414223.0803[127]Andromeda GalaxyL/Teff
LGGS J004044.17+410729.0803[127]Andromeda GalaxyL/Teff
LGGS J013352.83+305605.2803[127]Triangulum GalaxyL/Teff
LGGS J013343.30+303318.9873[127]–803[147]Triangulum GalaxyL/Teff
LGGS J013342.61+303534.7800[127]Triangulum GalaxyL/Teff
LGGS J013326.90+310054.2800[127]–909[147]Triangulum GalaxyL/Teff
M33-920 799[148] Triangulum Galaxy L/Teff
LGGS J013300.94+303404.3798[127]Triangulum GalaxyL/Teff
LGGS J013416.06+303730.0798[127]Triangulum GalaxyL/Teff
LGGS J004503.83+413737.0797[127]Andromeda GalaxyL/Teff
M33-255 797[148] Triangulum Galaxy L/Teff
LGGS J004438.83+415253.0794[127]Andromeda GalaxyL/Teff
LGGS J004235.88+405442.2794[127]Andromeda GalaxyL/Teff
LGGS J004335.28+410959.7794[127]Andromeda GalaxyL/Teff
LGGS J013402.32+303828.4793[127]Triangulum GalaxyL/Teff
LGGS J004125.55+405034.8792[127]Andromeda GalaxyL/Teff
M31-2338 792[148] Andromeda Galaxy L/Teff
LGGS J013507.43+304132.6791[127]Triangulum GalaxyL/Teff
LGGS J013353.25+303918.7791[127]Triangulum GalaxyL/Teff
LGGS J004308.71+410604.5790[127]Andromeda GalaxyL/Teff
LGGS J013417.17+304826.6789[127]Triangulum GalaxyL/Teff
LGGS J013310.71+302714.9789[127]–884[147]Triangulum GalaxyL/Teff
LGGS J013432.36+304159.0788[127]Triangulum GalaxyL/Teff
LGGS J004356.23+414641.8788[127]Andromeda GalaxyL/Teff
LGGS J013340.77+302108.7788[127]Triangulum GalaxyL/Teff
LGGS J013346.61+304125.4786[127]Triangulum GalaxyL/Teff
M31-2420 786[148] Andromeda Galaxy L/Teff
LGGS J004447.08+412801.7785[127]Andromeda GalaxyL/Teff
LGGS J004255.95+404857.5 785[149] Andromeda Galaxy L/Teff
LGGS J013231.91+302329.1783[127]Triangulum GalaxyL/Teff
M31-2252 783[148] Andromeda Galaxy L/Teff
LGGS J004110.32+410433.4782[127]Andromeda GalaxyL/Teff
LGGS J004159.06+405718.7780[127]Andromeda GalaxyL/Teff
M31-1494 758[148] Andromeda Galaxy L/Teff
LGGS J004241.10+413142.3775[127]Andromeda GalaxyL/Teff
LGGS J013401.88+303858.3776[147]Triangulum GalaxyL/Teff
LGGS J013445.12+305858.9773[127]Triangulum GalaxyL/Teff
LGGS J004030.92+404329.3773[127]Andromeda GalaxyL/Teff
M31-1410 772[148] Andromeda Galaxy L/Teff
LGGS J013359.57+303413.5771[127]Triangulum GalaxyL/Teff
LGGS J004353.97+411255.6771[127]Andromeda GalaxyL/Teff
LGGS J004029.03+403412.6770[127]Andromeda GalaxyL/Teff
LGGS J004526.24+420047.5767[127]Andromeda GalaxyL/Teff
LGGS J013348.44+302029.8767[127]Triangulum GalaxyL/Teff
LGGS J004552.15+421003.5767[127]Andromeda GalaxyL/Teff
M31-689 767[148] Andromeda Galaxy L/Teff
LGGS J013320.75+303204.8764[127]Triangulum GalaxyL/Teff
LGGS J013416.28+303353.5763[127]–801[147]Triangulum GalaxyL/Teff
LGGS J013357.91+303338.9763[127]Triangulum GalaxyL/Teff
LGGS J013253.14+303515.3762[127]Triangulum GalaxyL/Teff
LGGS J004051.18+403053.4762[127]Andromeda GalaxyL/Teff
LGGS J013402.57+303746.3762[127]Triangulum GalaxyL/Teff
LGGS J013352.15+304006.4762[127]Triangulum GalaxyL/Teff
LGGS J004427.07+415203.0762[127]Andromeda GalaxyL/Teff
LGGS J004233.23+405917.0762[127]Andromeda GalaxyL/Teff
LGGS J004156.96+405720.8761[127]Andromeda GalaxyL/Teff
LGGS J004117.14+410843.7761[127]Andromeda GalaxyL/Teff
LGGS J004124.80+411634.7 760, 1,205, 1,240[149] Andromeda Galaxy L/Teff
LGGS J004109.61+404920.4761[127]Andromeda GalaxyL/Teff
LGGS J003930.09+402313.0759[127]Andromeda GalaxyL/Teff
LGGS J013324.71+303423.7758[127]Triangulum GalaxyL/Teff
LGGS J013317.40+303210.8758[127]Triangulum GalaxyL/Teff
LGGS J013411.83+304631.0756[127]Triangulum GalaxyL/Teff
LGGS J004417.75+420039.1755[127]Andromeda GalaxyL/Teff
LGGS J004454.50+413007.8755[127]Andromeda GalaxyL/Teff
LGGS J013348.77+304526.8754[127]Triangulum GalaxyL/Teff
LGGS J004019.69+404912.2754[127]Andromeda GalaxyL/Teff
LGGS J004340.32+411157.1753[127]Andromeda GalaxyL/Teff
LGGS J013304.02+303215.2753[127]Triangulum GalaxyL/Teff
LGGS J013409.16+303846.9752[127]Triangulum GalaxyL/Teff
LGGS J013459.81+304156.9751[127]–765[147]Triangulum GalaxyL/Teff
LGGS J013334.82+302029.1751[127]–930[147]Triangulum GalaxyL/Teff
LGGS J013400.71+303422.3750[127]Triangulum GalaxyL/Teff
LGGS J004224.65+412623.7749[127]Andromeda GalaxyL/Teff
LGGS J013414.88+303401.2749[127]Triangulum GalaxyL/Teff
LGGS J004343.33+414529.5749[127]Andromeda GalaxyL/Teff
LGGS J004034.76+403648.9749[127]Andromeda GalaxyL/Teff
LGGS J013353.53+303418.7749[127]Triangulum GalaxyL/Teff
LGGS J004501.84+420259.2747[127]Andromeda GalaxyL/Teff
LGGS J013409.70+303916.2744[127]Triangulum GalaxyL/Teff
LGGS J013345.71+303609.8744[127]Triangulum GalaxyL/Teff
LGGS J004342.75+411442.8743[127]Andromeda GalaxyL/Teff
M31-1621 743[148] Andromeda Galaxy L/Teff
LGGS J013333.32+303147.2741[127]Triangulum GalaxyL/Teff
LGGS J013338.97+303506.1741[127]Triangulum GalaxyL/Teff
LGGS J013303.61+302841.5741[127]Triangulum GalaxyL/Teff
LGGS J004201.12+412516.0737[127]Andromeda GalaxyL/Teff
LGGS J004341.35+411213.8734[127]Andromeda GalaxyL/Teff
LGGS J013438.76+304608.1734[127]Triangulum GalaxyL/Teff
LGGS J013402.33+301749.2734[127]–786[147]Triangulum GalaxyL/Teff
2MASS J01334180+3040207732[127]Triangulum GalaxyL/Teff
LGGS J013354.32+301724.6732[127]–854[147]Triangulum GalaxyL/Teff
LGGS J013334.23+303400.3732[127]Triangulum GalaxyL/Teff
LGGS J013357.60+304113.3730[127]Triangulum GalaxyL/Teff
LGGS J004614.57+421117.4730[127]Andromeda GalaxyL/Teff
LGGS J004120.96+404125.3730[127]Andromeda GalaxyL/Teff
LGGS J004228.46+405519.0728[127]Andromeda GalaxyL/Teff
LGGS J004024.52+404444.8728[127]Andromeda GalaxyL/Teff
LGGS J013349.75+304459.8727[127]Triangulum GalaxyL/Teff
LGGS J013306.88+303004.6727[127]Triangulum GalaxyL/Teff
LGGS J004358.00+412114.1727[127]Andromeda GalaxyL/Teff
LGGS J004147.27+411537.8727[127]Andromeda GalaxyL/Teff
LGGS J013407.23+304158.8725[127]–833[147]Triangulum GalaxyL/Teff
LGGS J004519.82+415531.9725[127]Andromeda GalaxyL/Teff
LGGS J004410.84+411538.8725[127]Andromeda GalaxyL/Teff
LGGS J013407.38+305935.0724[127]Triangulum GalaxyL/Teff
LGGS J004438.75+415553.6724[127]Andromeda GalaxyL/Teff
LGGS J004324.16+411228.3723[127]Andromeda GalaxyL/Teff
LGGS J004059.58+403815.6723[127]Andromeda GalaxyL/Teff
LGGS J013327.40+304126.4721[127]Triangulum GalaxyL/Teff
LGGS J013243.72+301912.5721[127]–783[147]Triangulum GalaxyL/Teff
Gaia DR3 303379932695513216720[127]Triangulum GalaxyL/Teff
LGGS J004558.92+414642.1720[127]Andromeda GalaxyL/Teff
LGGS J004103.46+403633.2717[127]Andromeda GalaxyL/Teff
LGGS J013324.89+301754.3717[127]Triangulum GalaxyL/Teff
LGGS J004015.18+405947.7716[127]Andromeda GalaxyL/Teff
LGGS J013414.53+303557.7715[127]Triangulum GalaxyL/Teff
LGGS J013351.89+303853.5715[127]Triangulum GalaxyL/Teff
LGGS J004458.82+413050.4715[127]Andromeda GalaxyL/Teff
LGGS J013352.51+303942.2715[127]Triangulum GalaxyL/Teff
LGGS J004124.91+411133.1715[127]Andromeda GalaxyL/Teff
LGGS J004604.18+415135.4713[127]Andromeda GalaxyL/Teff
LGGS J013305.17+303119.8711[127]Triangulum GalaxyL/Teff
LGGS J004517.25+413948.2711[127]Andromeda GalaxyL/Teff
LGGS J013349.86+303246.1 710[150]–795[147] Triangulum Galaxy L/Teff A yellow supergiant.
2MASS J01335929+3034435709[127]Triangulum GalaxyL/Teff
LGGS J004230.32+405624.1708[127]Andromeda GalaxyL/Teff
LGGS J004101.02+403506.1708[127]Andromeda GalaxyL/Teff
LGGS J004119.21+411237.2707[127]Andromeda GalaxyL/Teff
LGGS J004606.25+415018.9707[127]Andromeda GalaxyL/Teff
LGGS J013442.05+304540.2707[127]–707[147]Triangulum GalaxyL/Teff
LGGS J013431.84+302721.5707[127]–717[147]Triangulum GalaxyL/Teff
LGGS J013304.68+304456.0707[127]–739[147]Triangulum GalaxyL/Teff
LGGS J004432.27+415158.4705[127]Andromeda GalaxyL/Teff
2MASS J01335131+3039149704[127]Triangulum GalaxyL/Teff
LGGS J013339.46+302113.0703[127]–748[147]Triangulum GalaxyL/Teff
LGGS J003935.36+401946.4703[127]Andromeda GalaxyL/Teff
LGGS J013343.03+303433.5702[127]Triangulum GalaxyL/Teff
LGGS J004505.87+413452.3702[127]Andromeda GalaxyL/Teff
LGGS J013414.18+305248.0701[127]–731[147]Triangulum GalaxyL/Teff
LGGS J013402.53+304107.7701[127]–749[147]Triangulum GalaxyL/Teff
LGGS J013340.80+304248.5701[127]–814[147]Triangulum GalaxyL/Teff
LGGS J013312.59+303252.5701[127]Triangulum GalaxyL/Teff
The following well-known stars are listed for the purpose of comparison.
Var 83 150[151] Triangulum Galaxy L/Teff A luminous blue variable and one of the most luminous stars in M33.
Close

Other galaxies (within the Local Group)

More information Star name, Solar radius (R☉) ...
List of the largest known stars in other galaxies (within the Local Group)
Star name Solar radius (R☉) Galaxy Method[a] Notes
NGC 6822-52 1,053[152] NGC 6822 L/Teff
Sextans A 10 995±130[153] Sextans A L/Teff
NGC 6822-RSG 19 928[154] NGC 6822 L/Teff
WLM 02 883+284
−167[155]		 WLM L/Teff
Sextans A 5 870±145[153] Sextans A L/Teff
NGC 6822-RSG 26 866[154] NGC 6822 L/Teff
NGC 6822-70 860[152] NGC 6822 L/Teff
NGC 6822-RSG 12 837[154] NGC 6822 L/Teff
NGC 6822-55 830[152] NGC 6822 L/Teff
NGC 6822-103 787[152] NGC 6822 L/Teff
Leo A 7785[156]Leo AL/Teff
IC 10-26089 769[152] IC 10 L/Teff
NGC 6822-RSG 9 763[154] NGC 6822 L/Teff
NGC 6822-RSG 6 712[154] NGC 6822 L/Teff
Sextans A 7 710±100[153] Sextans A L/Teff
The following well-known stars are listed for the purpose of comparison.
AT 2018akx 211[157] NGC 3109 L/Teff It is a LBV,[158] and is the second brightest star in NGC 3109.
NGC 6822-WR 12 3.79[159] NGC 6822 L/Teff A Wolf-Rayet star, one of the hottest known stars.
Close

Outside the Local Group (inside the Virgo supercluster)

More information Star name, Solar radius (R☉) ...
List of the largest known stars in galaxies outside the Local Group inside the Virgo supercluster
Star name Solar radius (R☉) Galaxy Group Method[a] Notes
NGC 300-125 1,504+176
−157[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-154 1,503+79
−75[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 7793-34 1,392+157
−160[160]		 NGC 7793 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-40 1,286 +116
−106[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 2403 V141,260[161]NGC 2403M81 GroupL/TeffA F-type yellow hypergiant.
NGC 300-154 1,200 +123
−111[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-114 1,181 +123
−111[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-199 1,181 +120
−109[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-153 1,173 +120
−109[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-150 1,167 +119
−107[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 253-2006 1,167 +75
−70[160]		 Sculptor Galaxy Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
SPIRITS 14atl 1,134–1,477[162] Messier 83 Centaurus A/M83 Group L/Teff
NGC 300-59 1,133 +146
−129[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 7793-86 1,127 +94
−109[160]		 NGC 7793 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-263 1,108 +113
−102[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-447 1,101 +58
−56[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
SPIRITS 15ahp 1,098[162] NGC 2403 M81 Group L/Teff
NGC 300-240 1,088 +112
−101[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 7793-86 1,078 +69
−64[160]		 NGC 7793 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-173 1,063 +84
−77[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-340 1,036 +105
−95[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-346 1,023 +139
−128[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-533 1,004 +66
−62[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-351 992 +115
−102[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-524 987 +77
−72[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-135 964 +99
−89[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-93 955 +49
−47[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 7793-539 948[160] NGC 7793 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-87 948 +109
−98[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-146 921 +49
−46[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-273 921 +94
−85[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-186 915 +72
−65[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-200 905 +59
−55[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-152 895 +58
−54[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-413 861 +66
−61[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-174 856 +65
−61[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
M81 10584-25-2851[161]Messier 81M81 GroupL/TeffA yellow hypergiant.
M81 10584-13-3843[161]Messier 81M81 GroupL/TeffA yellow hypergiant.
NGC 55-75 836 +81
−111[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-545 824 +104
−93[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-2912 821 +54
−51[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-216 801 +102
−89[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-1471 798 +52
−48[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-499 796 +89
−108[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-379 744 +56
−52[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-838 744 +57
−53[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-149 738 +47
−55[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-194 730 +46
−44[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
[GKE2015] 7729[163]NGC 300NGC 55 GroupL/Teff
NGC 55-270 728 +38
−36[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-1047 724 +65
−59[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-3231 719 +56
−51[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 247-2966 719 +56
−52[160]		 NGC 247 Sculptor Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 55-245 717 +55
−50[160]		 NGC 55 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-1068 716 +64
−58[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
NGC 300-1081 712 +54
−51[160]		 NGC 300 NGC 55 Group L/Teff Effective temperature is based on Titanium(II) oxide lines, which often results in lower values, therefore increasing the radius.[160]
The following well-known stars are listed for the purpose of comparison.
Holmberg IX V1 A 337[164] Holmberg IX M81 Group L/Teff Primary star of a yellow supergiant contact binary.
Holmberg IX V1 B 306[164] Holmberg IX M81 Group L/Teff Secondary star of a yellow supergiant contact binary.
NGC 2363-V1 194–356[165] NGC 2366 M81 Group L/Teff
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Outside the Virgo supercluster

Note that this list does not include the candidate JWST dark stars, with estimated radii of up to 61 astronomical units (13,000 R☉)[166] or quasi-stars, with theoretical models suggesting that they could reach radii of up to 40,700 solar radii (189 au).[167]

More information Star name, Solar radius (R☉) ...
Star name Solar radius (R☉) Galaxy Group Method[a] Notes
W2 A 1,182[168] Warhol Arc MACS J0416.1-2403 L/Teff W2 A is the primary star in a binary system consisting of a red supergiant and a B-type supergiant, located at redshift z = 0.94.
Quyllur 965[169] ACT-CL J0102-4915 L/Teff Likely the first red supergiant star at cosmological distances and is also discovered by James Webb Space Telescope.
The following well-known stars are listed for the purpose of comparison.
Godzilla 430–2,365[170] Sunburst galaxy PSZ1 G311.65-18.48 L/Teff The most luminous known star.[171]
Mothra 271[172] LS1 MACS J0416.1-2403 L/Teff A binary star at cosmological distances.
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Transient events

During some transient events, such as red novae or LBV eruptions the star's radius can increase by a significant amount.

More information Star or transient event name, Solar radius (R☉) ...
List of largest stars during transient events
Star or transient event name Solar radius (R☉) Year Galaxy Group Method Notes
AT 2017jfs >33,000[173] 2017 NGC 4470 L/Teff
SNhunt151 16,700[174] 2014 UGC 3165 LDC 331 L/Teff
SN 2015bh 16,400±2,600[175] 2015 NGC 2770 LDC 616 L/Teff
AT 2018hso 10,350[176] 2018 NGC 3729 M109 Group L/Teff
AT 2023clx 6,800[177] 2023 NGC 3799 nest 101314 L/Teff
M51 OT2019-1 5,500[178] 2019 Whirlpool Galaxy M51 Group L/Teff
η Carinae 4,319 – 6,032[109] 1845 Milky Way Local Group L/Teff During the outburst, the star became the second brightest star in sky, reaching an apparent magnitude of between −0.8 and −1.0.[179]
AT 2010dn 4,130[180] 2010 NGC 3180 LDC 743 L/Teff
SN 2011fh 3,980[181] 2011 NGC 4806 Abell 3528 L/Teff
AT 2014ej 3,600[182] 2014 NGC 7552 Grus Quartet L/Teff
V838 Monocerotis 3,190[98] 2002 Milky Way Local Group L/Teff
SN2008S 3,020[180] 2008 NGC 6946 NGC 6946 Group L/Teff
SNhunt120 2,900[183][182] 2012 NGC 5775 Virgo Cluster L/Teff
AT 2017be 2,000[184] 2017 NGC 2537 L/Teff
PHL 293B star 1,348 – 1,463[185] 2002 PHL 293B L/Teff
SNhunt248 ~850[186] 2014 NGC 5806 NGC 5846 Group L/Teff
SN 2002kg 704[187] 2002 NGC 2403 M81 Group L/Teff
R71 500[188] 2012 Large Magellanic Cloud Local Group L/Teff
SN 2000ch 500[189] 2000 NGC 3432 LDC 743 L/Teff
Godzilla 430 – 2,365[170] 2015 Sunburst galaxy L/Teff
AT 2016blu ~330[190] 2012 – 2022 NGC 4559 Coma I Group L/Teff 19 outbursts were detected between 2012 and 2022. The star was likely relatively stable the decade before since no outbursts were detected from 1999 – 2009.[190]
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SN Progenitors

More information Star or supernova name, Solar radius (R☉) ...
List of largest supernova progenitors
Star or supernova name Solar radius (R☉) Year Galaxy Group Method Notes
SN 2025pht 1,850 ± 340 – 2,620 ± 480[191] 2025 NGC 1637 L/Teff
SN 2020xva 1,520[192] 2020 SDSS J173209.23+533908.4 L/Teff
SN 2019ust 1,440[192] 2019 UGC 548 [TKT2016] 54 L/Teff
N6946-BH1 1,216-2,720[193] 2008 NGC 6946 LDC 1412 L/Teff Not a true supernova and was a failed supernova.
SN 2021ibn 1,200[192] 2021 2MASX J08501445+3701127 L/Teff
SN 2020afdi 1,200[192] 2020 NGC 5836 L/Teff
SN 2002hh 1,184-1,904[194] 2002 NGC 6946 LDC 1412 L/Teff
SN 2018fif 1,174[195] 2018 UGC 85 LGG 485 L/Teff
SN 1999an 1,131-1,492[194] 1999 IC 755 Virgo Cluster L/Teff
SN 2019eoh 1,100±130[192] 2019 IC 4145 L/Teff
SN 2017eaw 1,000-2,000[196] 2017 NGC 6946 LDC 1412 L/Teff
SN 2020faa 1,000[197] 2020 2MASS J14470904+7244157 L/Teff
SN 2023ixf 912+227
−222[198]–1,060±30[199]		 2023 Pinwheel galaxy M101 Group L/Teff
SN 2004et 893-976[194] 2004 NGC 6946 LDC 1412 L/Teff
SN 2019oxn 780±120[192] 2019 SDSS J175113.25+512300.1 L/Teff
SN 2018aoq 742[194] 2018 NGC 4151 LDC 867 L/Teff
NGC3021-CANDIDATE-1 722[200] 2005 NGC 3021 LDC 676 L/Teff Not a true supernova and was a failed supernova.
SN 1999br 717-945[194] 1999 NGC 4900 Virgo Cluster L/Teff
SN 2020jfo 700±10[201] 2020 Messier 61 Virgo Cluster L/Teff
SN 2009hd 686[194] 2009 Messier 66 M66 Group L/Teff Progenitor was similar to V915 Scorpii.
SN 1999em 663-942[194] 1999 NGC 1637 [TSK2008] 975 L/Teff
SN 2009md 663[194] 2009 NGC 3389 LGG 214 L/Teff
SN 2012ec 625[194] 2012 NGC 1084 NGC 1052 Group L/Teff
SN 1999gi 593-783[194] 1999 NGC 3184 LDC 743 L/Teff
SN 2006my 585-941[194] 2006 NGC 4651 Virgo Cluster L/Teff
SN 2007aa 559-737[194] 2007 NGC 4030 Virgo Cluster L/Teff
SN 2012aw 549-882[194] 2012 Messier 95 LGG 217 L/Teff
SN 2004A 539-866[194] 2004 NGC 6207 [TKS2008] 816 L/Teff
SN 2001du 534-744[194] 2001 NGC 1365 Fornax Cluster L/Teff
SN 2012A 513-588[194] 2012 NGC 3239 LDC 778 L/Teff
SN 2013ej 512[194] 2013 Messier 74 M74 Group L/Teff
SN 2009kr 504-2,182[194] 2009 NGC 1832 NGC 1832 Group L/Teff Progenitor was a RSG or YSG.
SN 2020cxd 500[192] 2020 NGC 6395 LDC 1246 L/Teff
SN 2024abfl 499-592[202] 2024 NGC 2146 L/Teff
SN 2008bk 494-567[194] 2008 NGC 7793 Sculptor Group L/Teff
SN 2020fqv 490[192] 2020 NGC 4568 Virgo Cluster L/Teff
SN 2024ggi 477[194] 2024 NGC 3621 [TSK2008] 310 L/Teff
SN 2008cn 439[194] 2008 NGC 4603 LGG 301 L/Teff Progenitor was a YSG.
SN 2023axu 417±28[203] 2023 NGC 2283 [TSK2008] 995 L/Teff
SN 2005cs 409[194] 2005 Whirlpool Galaxy M51 Group L/Teff
SN 2004dg 407-654[194] 2004 NGC 5806 NGC 5846 Group L/Teff
SN 2003gd 384[204] 2003 Messier 74 M74 Group L/Teff
SN 2006bc 378-608[194] 2006 NGC 2397 LGG 147 L/Teff
SN 2006ov 326-524[194] 2006 Messier 61 Virgo Cluster L/Teff
SN 2022acko 323-520[194] 2022 NGC 1300 LGG 90 L/Teff
SN 2003gm 216-278[205] 2003 NGC 5334 L/Teff
SN 2005gl 201[206] 2005 NGC 266 LGG 14 L/Teff Progenitor was a LBV.
SN 2013cu >144, 368[207] 2013 UGC 9379 L/Teff Progenitor was either a YHG or LBV.
SN 2020bio 100-1,500[208] 2020 NGC 5390 LGG 361 L/Teff
SN 1961V 100[209] 1961 NGC 1058 NGC 1023 Group L/Teff May be the hyper-eruption of a LBV.
SN 2021agco 78.37+25.59
−19.94[210]		 2021 UGC 3855 LDC 506 L/Teff Nearest ultrastripped supernova known.
SN 1987A 41.15[211] 1987 Large Magellanic Cloud Local Group L/Teff
iPTF13bvn 9.8[212] 2013 NGC 5806 NGC 5846 Group L/Teff Progenitor was WR star.
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Largest stars by apparent size

The following list include the largest stars by their apparent size (angular diameter) as seen from Earth. The unit of measurement is the milliarcsecond (mas), equivalent to 10×10−3 arcseconds. Stars with angular diameters larger than 13 milliarcseconds are included.

More information Name, Angular diameter (mas) ...
List of largest stars by apparent size (angular diameter)
Name Angular diameter
(mas)		 Angular diameter type[f] Distance
(light-years)		 Spectral type[213] Notes
Sun 2,000,000 0.000016 G2V The largest star by angular diameter.
R Doradus 51.18±1.24[103] LD

179±10[103]

 M8III:e The largest star by angular diameter apart from the Sun.
Betelgeuse
(α Orionis)		 42.28±0.43[90] LD

408–540+98
−49[90]

 M1-M2Ia-Iab
Antares
(α Scorpii A)		 37.31±0.09[214] LD 553.5±93.9[215] M1.5Iab
Mira
(ο Ceti)		 28.9±0.3 – 34.9±0.4[216] Ross 299±33[215] M5-M9IIIe The angular diameter vary during Mira's pulsations.
Tiaki
(β Gruis)		 28.8±0.6[217] ? 177±4[215] M4.5III
Gacrux
(γ Crucis)		 24.7[114] ? 88.6±0.4[215] M3.5III
Rasalgethi
(α Herculis)		 23.95±5.03[104] Est 359±52[215] M5Ib-II
R Hydrae 23.7±1[24] ? 482±33[24] M6-9e
Arcturus
(α Boötis)		 21.06±0.17[218] LD 36.8[218] K1.5IIIFe-0.5
π1 Gruis 21[219] ? 535[219] S5,7
Aldebaran
(α Tauri)		 20.58[220]–21.1[221] LD 65.3±1[222] K5+III
GY Aquilae 20.46[24] ? 1108±98[24] M8
θ Apodis 18.1[223] ? 389±17[224] M6.5III
R Lyrae 18.016±0.224[221] LD 310+10
−7[225]		 M4.5III
Scheat
(β Pegasi)		 16.75±0.24[226] Ross 196±2[215] M2.5II-III
Gorgonea Tertia
(ρ Persei)		 16.555±0.166[221] LD 308±7[215] M4+IIIa
SW Virginis 16.11±0.13–16.8±0.34[227] UD 527±46.9[228] M7III:
R Aquarii 15.61±0.8 – 16.59±1.03[227] LD 711+39
−36[229]		 M6.5–M8.5e
g Herculis 15.2±0.5 – 19.09±0.19[227] LD 385±10[225] M6-III
RS Cancri 15.1±0.5 – 17.2±0.4[221] LD 490±40[230] M6S
Tejat
(μ Geminorum)		 15.118±0.151[221] LD 230±10[215] M3IIIab
R Leonis Minoris 14.4±0.87[227] LD 942+33
−47[225]		 M6.5-9e
S Cephei 14.29±2.28[227] LD 1591+49
−46[225]		 C7,3e
T Cassiopeiae 14.22±0.73[227] LD 893+49
−46[225]		 M7-9e
μ Cephei (Herschel's Garnet Star) 14.11 ± 0.6[46] 2,000[45]–3060+460
−130[44]		 M2Ia
Mirach
(β Andromedae)		 13.749±0.137[221] LD 199±9[231] M0+IIIa
Menkar
(α Ceti)		 13.238±0.056[221] LD 249±8[215] M1.5IIIa Other measurements include 12.2±0.04 mas.[232]
V Cygni 13.1±0.208 – 14.84±2.37[227] LD 1747+163
−137[225]		 C7,4eJ
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See also

Notes

  1. [a]
    Methods for calculating the radius:
  2. [b]
    At the J2000 epoch
  3. [c]
    Using an angular diameter of 7.8±0.64 milliarcseconds[38] and a distance of 1610+130
    −110     parsecs.    [33]
  4. [d]
    Luminosities are calculated using the apparent bolometric magnitude and distances in the following equation:
    100.4 • (4.74−(mbol+5−5 • log(dist)))
  5. [e]
    Calculated using a distance of 432 parsecs and an angular diameter of 2.31 milliarcseconds.
  6. [f]
    Legend:
    UD=Uniform disk diameter
    LD=Limb-darkened diameter
    Ross=Rosseland diameter
    Est = Estimated using distance and physical radius

References

External links

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