List of largest stars

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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 Script error: No such module "convert".).[1]

File:Rho Cassiopeiae Sol VY Canis Majoris.png
The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars (Pistol Star, Rho Cassiopeiae, Betelgeuse, and VY Canis Majoris)

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 Template:Solar radius, 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.Script error: No such module "Unsubst".

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

Script error: No such module "Hatnote". The following lists show the largest known stars based on the host galaxy.

Milky Way

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List of the largest known stars in the Milky Way
Star name Solar radius (Template:Solar radius) MethodTemplate:Efn Notes
Orbit of Saturn Script error: No such module "val".–Script error: No such module "val".[10]Template:Efn 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 Script error: No such module "val"..
Reported for reference
RSGC1-F01 Template:Solar radius calculator[12] L/Teff
VY Canis Majoris Script error: No such module "val".[13][14][15] 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.[16] Potentially the largest known star.[14] 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.[13]
AH Scorpii Script error: No such module "val".[17][18] AD
RSGC1-F06 Template:Solar radius calculator[12] L/Teff
S Persei Script error: No such module "val".[19] AD
VX Sagittarii Script error: No such module "val".[20]Template:SndScript error: No such module "val".[18] AD The most luminous known asymptotic giant branch star.[20] Widely recognised as being among the largest known stars.[21]
NML Cygni <Script error: No such module "val".Template:Efn AD Surrounding dusty region is very complex making the radius hard to determine.[22]
Stephenson 2 DFK 2 Template:Solar radius calculator[12] L/Teff Another red supergiant, Stephenson 2 DFK 1 has an estimated radius of Template:Solar radius. However, it is potentially not a member of the Stephenson 2 cluster and also has a distance with an uncertainty of ≳50% due to it only being measured with radial velocities.[12][23]
Stephenson 2 DFK 49 Template:Solar radius calculator[12] L/Teff A K-type star similar to the yellow hypergiant IRC +10420 that has left its red supergiant stage.[12]
HD 143183 (V558 Normae) 1,261[24] L/Teff
PZ Cassiopeiae Template:Solar radius calculatorTemplate:SndTemplate:Solar radius calculator,[25] Script error: No such module "val".[26] L/Teff & AD
μ Cephei (Herschel's Garnet Star) 1,259[27]Template:SndTemplate:Solar radius calculatorScript error: No such module "Su".Template:Efn or ~RBetelgeuse L/Teff & AD Widely recognised as being among the largest known stars.[21] Might be the largest star visible to the naked eye.[28] The higher radii estimate assume Mu Cephei is in the Cepheus OB2 OB association.[27][29] Other sources suggest Mu Cephei and Betelgeuse are likely similar in properties.[30][31] If so, Mu Cephei's radius would be comparable to that of Betelgeuse, which is between Template:Solar radius.
RSGC1-F10 Template:Solar radius calculator[12] L/Teff
V354 Cephei 1,245[24] L/Teff
Westerlund 1 W237 (Westerlund 1 BKS B) Script error: No such module "val".[32] L/Teff
ST Cephei 1,218[24] L/Teff
IRC -10414 ~Script error: No such module "val".[33] L/Teff
RSGC1-F05 Template:Solar radius calculator[12] L/Teff
V517 Monocerotis Script error: No such module "val".[34] L/Teff
GCIRS 7 Script error: No such module "val".,[35] Template:Solar radius calculator,[36] Script error: No such module "val".[37] AD & L/Teff
Westerlund 1 W26 (Westerlund 1 BKS AS) Script error: No such module "val".–Script error: No such module "val".[32] L/Teff
[A72c] 16 1,157[24] L/Teff
WY Velorum A 1,157[24] L/Teff A symbiotic binary.[38]
RSGC1-F02 Template:Solar radius calculator[12] L/Teff
Orbit of Jupiter Script error: No such module "val".–Script error: No such module "val".[10]Template:Efn Reported for reference
V582 Cassiopeiae 1,111[24] L/Teff
RW Cygni Script error: No such module "val".[39] AD
RW Cephei Script error: No such module "val".[40] AD A K-type hypergiant star that experienced a "great dimming" event in 2022, similar to Betelgeuse.
RSGC1-F08 Template:Solar radius calculator[12] L/Teff
RT Carinae 1,090[41] L/Teff
RSGC1-F04 Template:Solar radius calculator,[42] 1,100,[43] Script error: No such module "val".[12] L/Teff
UU Persei Script error: No such module "val".[34] L/Teff
LL Pegasi Template:Solar radius calculator[44] L/Teff
HD 126577 Script error: No such module "val".[34] L/Teff
V766 Centauri Aa 1,060–1,160[45] ? V766 Centauri Aa is a rare variable yellow hypergiant.
CM Velorum 1,048[24]Template:SndScript error: No such module "val".[34] L/Teff
AG Camelopardalis 1,048[24] L/Teff
SU Persei Script error: No such module "val".Template:SndScript error: No such module "val".,[19] AD
Template:Vanchor Script error: No such module "val".[26] AD
BC Cygni 1,031[46]Template:SndScript error: No such module "val".[34] L/Teff A more detailed but older study gives values of Script error: No such module "val". Template:Solar radius (Script error: No such module "val".–Script error: No such module "val".) for the year 2000, and Script error: No such module "val". Template:Solar radius (Script error: No such module "val".–Script error: No such module "val".) for the year 1900.[47]
MY Cephei Template:Solar radius calculatorTemplate:SndTemplate:Solar radius calculator[48]Template:Efn L/Teff
V530 Cassiopeiae 1,017[24] L/Teff
V602 Carinae 1,015[49] AD
VV Cephei A 1,015[50] AD A red supergiant star orbited by a smaller B-type main-sequence star with a radius estimated between 13[51] and Template:Solar radius.[52] Widely recognised as being among the largest known stars.[21] Another estimate give a radius of Template:Solar radius[24] based on the Gaia DR3 distance of 1 kpc.[34]
U Lacertae A 1,013[24] L/Teff
KW Sagittarii Script error: No such module "val".[17][18] AD
Ve 4-64 1,007[24] L/Teff
V349 Carinae Script error: No such module "val".[34] L/Teff
RSGC1-F07 Template:Solar radius calculator[12] L/Teff
RSGC1-F09 Template:Solar radius calculator[12] L/Teff
RSGC1-F11 Template:Solar radius calculator[12] L/Teff
RSGC1-F13 Template:Solar radius calculator[12] L/Teff
V674 Cephei 999[24] L/Teff
IRAS 18111-2257 ~Template:Solar radius calculatorTemplate:SndTemplate:Solar radius calculator[53] L/Teff Estimated based on the bolometric luminosity (Template:Solar luminosity) and assumed effective temperature of 2,000 K. Another period-luminosity-derived luminosity for this star results in a radius of Template:Solar radius.[53]
CIT 11 982[24] L/Teff
V381 Cephei Aa 977[24] L/Teff
MSX6C G086.5890–00.7718 (Script error: No such module "val".Template:SndScript error: No such module "val".)[54]Template:SndScript error: No such module "val".[34] 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.
V396 Centauri 965[24] L/Teff
Template:Vanchor 964[24] L/Teff
RSGC1-F12 Template:Solar radius calculator[12] L/Teff
RSGC1-F03 Template:Solar radius calculator[12] L/Teff
V398 Cassiopeiae (HD 240275) 941[24] L/Teff
IRC +60342 940[24] L/Teff
ψ1 Aurigae 934[24] L/Teff
V645 Cephei 920[24] L/Teff
UY Scuti Script error: No such module "val".[24] L/Teff
NR Vulpeculae 908[24]Template:SndScript error: No such module "val".[26] L/Teff
KU Andromedae (IRC +40004) Template:Solar radius calculator[55]Template:SndTemplate:Solar radius calculator[56] L/Teff
V774 Sagittarii 889[24] L/Teff
V923 Centauri 881[24] L/Teff
IRAS 20341+4047 880[24] L/Teff
IRAS 17418−2713 Template:Solar radius calculator[57] L/Teff
V540 Sagittarii 880[24] L/Teff
V386 Cephei 879[24] L/Teff
Trumpler 27-1 (CD-33 12241) Script error: No such module "val".[34] ?
TYC 3996-552-2 870[24] L/Teff
V1300 Aquilae (IRC −10529) Template:Solar radius calculator[55]Template:SndTemplate:Solar radius calculator[56] L/Teff
Westerlund 1 W20 (Westerlund 1 BKS D) Script error: No such module "val".[32] L/Teff
AZ Cygni Script error: No such module "val".Template:SndScript error: No such module "val".[19] AD Estimated based on data from the CHARA array. Another radii of Template:Solar radius (2014), Template:Solar radius (2015) and Template:Solar radius (2016) are calculated based on the same data.[19]
V348 Velorum 855[24] L/Teff
BI Cygni Script error: No such module "val".Template:SndScript error: No such module "val".[19] AD
TW Carinae 835[24] L/Teff
V358 Cassiopeiae 835[24] L/Teff
DO 26226 826[24] L/Teff
HD 155737 823[24] L/Teff
6 Geminorum 821[19] L/Teff
RW Leonis Minoris Template:Solar radius calculator[58]Template:SndTemplate:Solar radius calculator[56] L/Teff
HD 300933 806[24] L/Teff
[W61c] R 53 801[24] L/Teff
RT Ophiuchi Script error: No such module "val".[59] AD
HD 95687 797[24] L/Teff
BO Carinae Script error: No such module "val".[41] L/Teff
HD 62745 790[24] L/Teff
WX Piscium Template:Solar radius calculator[60]Template:SndTemplate:Solar radius calculator[56] L/Teff
VR5–7 Template:Solar radius calculator[61] L/Teff
V Cygni Template:Solar radius calculator[62] L/Teff
BD+63 3 770[24] L/Teff
CL Carinae 770[24] L/Teff
RS Persei Script error: No such module "val".,[63] Script error: No such module "val".[26] AD
V355 Cephei Script error: No such module "val".[41]Template:Snd790[24] L/Teff
BD+63 270 769[24] L/Teff
V644 Cephei 765[24] L/Teff
BM VIII 11 754[24] L/Teff
[SLN74] 2130 752[24] L/Teff
IRAS 10176-5802 Script error: No such module "val".[34]Template:Snd(Script error: No such module "val".–Script error: No such module "val".)[54] 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 Script error: No such module "val".[41] L/Teff
V384 Persei Template:Solar radius calculator[55]Template:SndTemplate:Solar radius calculator[56] L/Teff
GY Aquilae Template:Solar radius calculator[18]Template:Snd<span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[64] AD
UU Pegasi Script error: No such module "val".[59] AD
IM Cassiopeiae 740[24] L/Teff
Stephenson 2 DFK 10 730[12] L/Teff
VdBH 222#566 725[65] L/Teff May be larger at Template:Solar radius, 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[24] L/Teff
Westerlund 1 W75 (Westerlund 1 BKS E) Script error: No such module "val".[32] L/Teff
V1111 Ophiuchi (IRC +10365) Template:Solar radius calculator[55]Template:SndTemplate:Solar radius calculator[56] L/Teff
XX Persei Script error: No such module "val".[26] AD
Template:Vanchor 716[24] L/Teff
V Camelopardalis Script error: No such module "val".[59] AD
CD-61 3575 716[24] L/Teff
AS Cephei 713[24] L/Teff
V770 Cassiopeiae (BD+60 299) 713[24] L/Teff
Template:Vanchor 712[24] L/Teff
R Leporis (Hind's Crimson Star) Template:Solar radius calculatorTemplate:SndTemplate:Solar radius calculator[66] AD
MZ Puppis 708[24] L/Teff
GP Cassiopeiae 707[24]Template:SndScript error: No such module "val".[34] L/Teff
GCIRS 12N Template:Solar radius calculator[61] L/Teff
V528 Carinae Script error: No such module "val".[41] L/Teff
The following well-known stars are listed for the purpose of comparison.
Antares (α Scorpii A) Script error: No such module "val".[67] AD Fourteenth brightest star in the night sky.[68] Widely recognised as being among the largest known stars.[21]
Betelgeuse (α Orionis) 640,[69] Script error: No such module "val".,[70] 782 ± 55[71] AD & SEIS Tenth brightest star in the night sky.[68] Widely recognised as being among the largest known stars,[21] radius decreased to Template:Solar radius during the 2020 great dimming event.[72]
R Horologii 630[55] 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.
119 Tauri (CE Tauri, Ruby Star) 587Template:Snd593[73] AD
ρ Cassiopeiae Script error: No such module "val". or Script error: No such module "val".[74] AD A yellow hypergiant star, similar to V382 Carinae, that is also visible to the naked eye.
CW Leonis 560[75] L/Teff The nearest carbon star.
V509 Cassiopeiae Script error: No such module "val".[40] AD A variable yellow hypergiant whose size varied from around Template:Solar radius in 1950–1970 to Template:Solar radius in 1977, and later decreased to Template:Solar radius in the 1990s.[76]
V838 Monocerotis 464[77] L/Teff During the 2002 Red Nova, the star's radius may have increased up to Template:Solar radius.[78]
Pistol Star (V4647 Sagittarii) Template:Solar radius calculator[79] L/Teff One of the most luminous stars known.
Mira (ο Ceti A) 332–402[80] AD Prototype of the Mira variables.
Orbit of Mars Script error: No such module "val".–Script error: No such module "val".[10]Template:Efn Reported for reference
R Doradus Script error: No such module "val".[81] AD The extrasolar star with the largest apparent size.
Rasalgethi (α Herculis A) Script error: No such module "val". (Script error: No such module "val".–Script error: No such module "val".)[82] L/Teff
Cygnus OB2#12 246[83] ? One of the most massive and luminous stars known.
Orbit of Earth (~1 AU) Script error: No such module "val".[10]Template:Efn Reported for reference
Suhail (λ Velorum) Script error: No such module "val".[84] AD
Wezen (δ Canis Majoris) 188[85] L/Teff Thirty-sixth brightest star in the night sky.[68]
Enif (ε Pegasi) 178[85] L/Teff
Orbit of Venus Script error: No such module "val".[10]Template:Efn Reported for reference
η Carinae A 128Template:Snd742[86] OD During the 1843 Great Eruption, the star's radius may have increased up to 4,319–6,032 Template:Solar radius.[87]
Deneb (α Cygni) Template:Solar radius calculator[88]Template:EfnTemplate:SndScript error: No such module "val".[89] AD & ? Eighteenth brightest star in the night sky.[68]
Orbit of Mercury Script error: No such module "val".–Script error: No such module "val".[10]Template:Efn Reported for reference
Rigel (β Orionis A) Script error: No such module "val".[90] AD Seventh brightest star in the night sky.
Canopus (α Carinae) 73.3[91] AD Second brightest star in the night sky.
Gacrux (γ Crucis) 73[92] L/Teff Twenty-sixth brightest star in the night sky.
Polaris (α Ursae Minoris) Script error: No such module "val".[93] AD The current star in the North Pole. It is a Classical Cepheid variable, and the brightest example of its class.
Aldebaran (α Tauri) Script error: No such module "val".[94] AD Fourteenth brightest star in the night sky.
Arcturus (α Boötis) 25.4 ± 0.2[95] 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[90] AD The nearest giant star to the Earth.
Spica (α Virginis A) Script error: No such module "val".[96] One of the nearest supernova candidates and the sixteenth-brightest star in the night sky.
Regulus (α Leonis A) 4.16 × 3.14[97] The nearest B-type star to the Earth.
Vega (α Lyrae) Script error: No such module "val". × Script error: No such module "val".[98] AD Fifth brightest star in the night sky.[68]
Altair (α Aquilae) 2.01 × 1.57[99] Twelfth brightest star in the night sky.
Sirius (α Canis Majoris A) 1.713[100] AD The brightest star in the night sky.
Rigil Kentaurus (α Centauri A) 1.2175[101] AD Third brightest star in the night sky.
Sun Script error: No such module "val". The largest object in the Solar System.

Magellanic Clouds

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List of the largest known stars in the Magellanic Clouds
Star name Solar radii
(Sun = 1) 		Galaxy MethodTemplate:Efn 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 Script error: No such module "val"..
Reported for reference
HV 888 1,477[102]–1,584[103] Large Magellanic Cloud L/Teff
IRAS 05280–6910 1,367[104] Large Magellanic Cloud L/Teff The most reddened object in the Large Magellanic Cloud.[103]
IRAS 05346-6949 1,211[105] Large Magellanic Cloud L/Teff It has an estimated mass-loss rate of 0.0017 Template:Solar mass (566 Earths) per year, the highest for any star.[105]
HV 2242 1,160[106]Template:SndTemplate:Solar radius calculator[107] Large Magellanic Cloud L/Teff
MSX SMC 018 1,119[105] Small Magellanic Cloud L/Teff
WOH S338 1,100[106] Large Magellanic Cloud L/Teff
IRAS 04516-6902 1,085[104] Large Magellanic Cloud L/Teff
MSX LMC 589 1,051[108] 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 Script error: No such module "val"..
Reported for reference
IRAS 05402-6956 1,032[104] Large Magellanic Cloud L/Teff
Template:Vanchor 1,027[104]–1,187[108] Large Magellanic Cloud L/Teff
B90 (WOH S264) Script error: No such module "val".Template:Snd1,210[109] Large Magellanic Cloud L/Teff Has an unusually high metallicity and velocity.[109] 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 Script error: No such module "val".[110]–1,071[110] Large Magellanic Cloud L/Teff A yellow hypergiant.
UCAC2 2674864 (HV 2834) Script error: No such module "val".[111] Large Magellanic Cloud L/Teff
HV 2362 Template:Solar radius calculator[107]Template:Snd1,030[106] Large Magellanic Cloud L/Teff
MG73 59 979[112] Large Magellanic Cloud L/Teff A yellow supergiant.
HD 268757 979[112] Large Magellanic Cloud L/Teff A G8 yellow hypergiant.
LMC 147199 Template:Solar radius calculator[107]Template:Snd990[106] Large Magellanic Cloud L/Teff
LMC 23095 926[108] – 1,280[107] Large Magellanic Cloud L/Teff
SP77 31-16 Script error: No such module "val".[110] Large Magellanic Cloud L/Teff A yellow hypergiant.
LMC 66778 Template:Solar radius calculator[107]Template:Snd990[106] Large Magellanic Cloud L/Teff
WOH S457 Script error: No such module "val".[113] Large Magellanic Cloud L/Teff
IRAS 04498-6842 (LI-LMC 60) 898[104]Template:SndTemplate:Solar radius calculator[108]Template:SndTemplate:Solar radius calculator,[103] Template:Solar radius calculator[107] 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 Template:Solar radius.[103]
HV 12185 Script error: No such module "val".[111] Large Magellanic Cloud L/Teff
HV 12793 Script error: No such module "val".[111] Large Magellanic Cloud L/Teff
WOH S57 Script error: No such module "val".[111] Large Magellanic Cloud L/Teff
SP77 28-2 Script error: No such module "val".[111] Large Magellanic Cloud L/Teff
SP77 22-9 Template:Solar radius calculator[107]Template:Snd850[106] Large Magellanic Cloud L/Teff
Z Doradus Script error: No such module "val".[113]–956[108] Large Magellanic Cloud L/Teff
WOH G64 A ~800[114] Large Magellanic Cloud L/Teff In a symbiotic binary with a smaller B-type star, WOH G64 B.[114] It was previously estimated to be Template:Solar radius when a red supergiant, which would make it a candidate for the largest known star, but transitioned to a yellow hypergiant after a potential 30 year long outburst.[114]
SP77 40-7 Template:Solar radius calculator[107]Template:Snd810[106] Large Magellanic Cloud L/Teff
W61 19–24 Script error: No such module "val".[111] Large Magellanic Cloud L/Teff
WOH S28 780[106] Large Magellanic Cloud L/Teff
SP77 48-6 768[115] Large Magellanic Cloud L/Teff
WOH S452 Script error: No such module "val".[113] Large Magellanic Cloud L/Teff
WOH S438 Script error: No such module "val".[113] Large Magellanic Cloud L/Teff
LMC 139027 Template:Solar radius calculator[107]Template:Snd790[106] Large Magellanic Cloud L/Teff
SP77 45-16 Template:Solar radius calculator[107]Template:Snd800[106] Large Magellanic Cloud L/Teff
SP77 54-27 750[106]Template:SndTemplate:Solar radius calculator[107]Template:Snd800[106] Large Magellanic Cloud L/Teff
SP77 39-17 Template:Solar radius calculator[107]Template:Snd760[106] Large Magellanic Cloud L/Teff
HD 269723 Script error: No such module "val".,[110] 814[112]–829[115] Large Magellanic Cloud L/Teff A yellow hypergiant.
PMMR 64 Script error: No such module "val".[111] Small Magellanic Cloud L/Teff
LH 43-15 Template:Solar radius calculator[107]Template:Snd740[106] Large Magellanic Cloud L/Teff
PMMR 116 717[115] Small Magellanic Cloud L/Teff
MSX SMC 055 702[116]–Script error: No such module "val".[108] Small Magellanic Cloud L/Teff A super-AGB candidate.
SP77 48-6 Script error: No such module "val".[110] 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[117] Small Magellanic Cloud L/Teff It has been previously considered to be a possible Thorne–Żytkow object.[117]
HV 11417 673[108]–798[107] Small Magellanic Cloud L/Teff Candidate Thorne-Zytkow object.[117]
HD 269953 647[112]–720[115] Large Magellanic Cloud L/Teff A yellow hypergiant.
HD 33579 471[115] Large Magellanic Cloud L/Teff The brightest star in the Large Magellanic Cloud.
S Doradus 100[118] Large Magellanic Cloud L/Teff A luminous blue variable in the S Doradus instability strip.
HD 37974 99[119] Large Magellanic Cloud L/Teff An unusual blue hypergiant with a large dusty disk.[119]
R136a1 Script error: No such module "val".[120] Large Magellanic Cloud L/Teff One of the most luminous and most massive stars.
BAT 99-98 37.5[121] Large Magellanic Cloud L/Teff One of the most luminous and most massive stars.
HD 5980 A 24[122] Small Magellanic Cloud L/Teff A luminous blue variable and one of the most luminous stars.

Andromeda (M31) and Triangulum (M33) galaxies

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List of the largest known stars in Andromeda and Triangulum galaxies
Star name Solar radii
(Sun = 1) 		Galaxy MethodTemplate:Efn 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 Script error: No such module "val"..
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 Script error: No such module "val"..
Reported for reference
LGGS J004428.48+415130.9 1,410[123] Andromeda Galaxy L/Teff
LGGS J013418.56+303808.6 1,363[124] Triangulum Galaxy L/Teff
LGGS J004255.95+404857.5 785[125] Andromeda Galaxy L/Teff
LGGS J004124.80+411634.7 760, 1,205, 1,240[125] Andromeda Galaxy L/Teff
LGGS J013349.86+303246.1 710[126]–795[124] Triangulum Galaxy L/Teff A yellow supergiant.
The following well-known stars are listed for the purpose of comparison.
Var 83 150[127] Triangulum Galaxy L/Teff A luminous blue variable and one of the most luminous stars in M33.

Other galaxies (within the Local Group)

Template:List of largest stars row
List of the largest known stars in other galaxies (within the Local Group)
Star name Solar radii
(Sun = 1) 		Galaxy MethodTemplate:Efn Notes
[SC88] 55 1,159[128] NGC 3109 L/Teff
Sextans A 10 Script error: No such module "val".[129] Sextans A L/Teff
NGC 6822-RSG 19 928[130] NGC 6822 L/Teff
[SC88] 59 908[128] NGC 3109 L/Teff
WLM 02 Script error: No such module "val".[131] WLM L/Teff
Sextans A 5 Script error: No such module "val".[129] Sextans A L/Teff
NGC 6822-RSG 26 866[130] NGC 6822 L/Teff
[SC88] 72 838[128] NGC 3109 L/Teff
NGC 6822-RSG 12 837[130] NGC 6822 L/Teff
[SC88] 48 777[128] NGC 3109 L/Teff
NGC 6822-RSG 9 763[130] NGC 6822 L/Teff
NGC 6822-RSG 6 712[130] NGC 6822 L/Teff
Sextans A 7 Script error: No such module "val".[129] Sextans A L/Teff
The following well-known stars are listed for the purpose of comparison.
AT 2018akx 211[132] NGC 3109 L/Teff It is a LBV,[133] and is the second brightest star in NGC 3109.
NGC 6822-WR 12 3.79[134] NGC 6822 L/Teff A Wolf-Rayet star, one of the hottest known stars.

Outside the Local Group (inside the Virgo supercluster)

Template:List of largest stars rowTemplate:List of largest stars rowTemplate:List of largest stars rowTemplate:List of largest stars row
List of the largest known stars in galaxies outside the Local Group inside the Virgo supercluster
Star name Solar radii
(Sun = 1) 		Galaxy Group MethodTemplate:Efn Notes
NGC 300-125 Script error: No such module "val".[135] 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.[135]
NGC 247-154 Script error: No such module "val".[135] 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.[135]
[S83] 34 1,430[136] Pinwheel Galaxy M101 Group L/Teff
NGC 7793-34 Script error: No such module "val".[135] 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.[135]
[S83] 29 1,325[136] Pinwheel Galaxy M101 Group L/Teff
NGC 55-40 1,286 Script error: No such module "Su".[135] 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.[135]
[S83] 28 1,286[136] Pinwheel Galaxy M101 Group L/Teff
NGC 300-154 1,200 Script error: No such module "Su".[135] 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.[135]
NGC 300-114 1,181 Script error: No such module "Su".[135] 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.[135]
NGC 300-199 1,181 Script error: No such module "Su".[135] 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.[135]
NGC 300-153 1,173 Script error: No such module "Su".[135] 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.[135]
NGC 300-150 1,167 Script error: No such module "Su".[135] 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.[135]
NGC 253-2006 1,167 Script error: No such module "Su".[135] 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.[135]
[S83] 160 1,138[136] Pinwheel Galaxy M101 Group L/Teff A yellow hypergiant.
SPIRITS 14atl 1,134–1,477[137] Messier 83 Centaurus A/M83 Group L/Teff
NGC 300-59 1,133 Script error: No such module "Su".[135] 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.[135]
NGC 7793-86 1,127 Script error: No such module "Su".[135] 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.[135]
NGC 300-263 1,108 Script error: No such module "Su".[135] 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.[135]
NGC 247-447 1,101 Script error: No such module "Su".[135] 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.[135]
SPIRITS 15ahp 1,098[137] NGC 2403 M81 Group L/Teff
NGC 300-240 1,088 Script error: No such module "Su".[135] 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.[135]
NGC 7793-86 1,078 Script error: No such module "Su".[135] 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.[135]
NGC 300-173 1,063 Script error: No such module "Su".[135] 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.[135]
[S83] 182 1,043[136] Pinwheel Galaxy M101 Group L/Teff A yellow hypergiant.
NGC 300-340 1,036 Script error: No such module "Su".[135] 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.[135]
NGC 300-346 1,023 Script error: No such module "Su".[135] 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.[135]
NGC 247-533 1,004 Script error: No such module "Su".[135] 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.[135]
[S83] 173 1,000[136] Pinwheel Galaxy M101 Group L/Teff A yellow hypergiant.
NGC 300-351 992 Script error: No such module "Su".[135] 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.[135]
NGC 300-524 987 Script error: No such module "Su".[135] 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.[135]
NGC 55-135 964 Script error: No such module "Su".[135] 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.[135]
NGC 55-93 955 Script error: No such module "Su".[135] 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.[135]
NGC 7793-539 948[135] 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.[135]
NGC 55-87 948 Script error: No such module "Su".[135] 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.[135]
NGC 55-146 921 Script error: No such module "Su".[135] 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.[135]
NGC 300-273 921 Script error: No such module "Su".[135] 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.[135]
NGC 300-186 915 Script error: No such module "Su".[135] 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.[135]
NGC 55-200 905 Script error: No such module "Su".[135] 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.[135]
NGC 55-152 895 Script error: No such module "Su".[135] 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.[135]
NGC 300-413 861 Script error: No such module "Su".[135] 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.[135]
NGC 55-174 856 Script error: No such module "Su".[135] 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.[135]
NGC 55-75 836 Script error: No such module "Su".[135] 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.[135]
NGC 300-545 824 Script error: No such module "Su".[135] 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.[135]
NGC 247-2912 821 Script error: No such module "Su".[135] 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.[135]
[S83] 24 817[136] Pinwheel Galaxy M101 Group L/Teff
NGC 55-216 801 Script error: No such module "Su".[135] 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.[135]
NGC 247-1471 798 Script error: No such module "Su".[135] 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.[135]
NGC 300-499 796 Script error: No such module "Su".[135] 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.[135]
NGC 300-379 744 Script error: No such module "Su".[135] 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.[135]
NGC 300-838 744 Script error: No such module "Su".[135] 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.[135]
NGC 55-149 738 Script error: No such module "Su".[135] 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.[135]
NGC 55-194 730 Script error: No such module "Su".[135] 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.[135]
NGC 55-270 728 Script error: No such module "Su".[135] 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.[135]
NGC 300-1047 724 Script error: No such module "Su".[135] 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.[135]
NGC 247-3231 719 Script error: No such module "Su".[135] 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.[135]
NGC 247-2966 719 Script error: No such module "Su".[135] 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.[135]
NGC 55-245 717 Script error: No such module "Su".[135] 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.[135]
NGC 300-1068 716 Script error: No such module "Su".[135] 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.[135]
NGC 300-1081 712 Script error: No such module "Su".[135] 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.[135]
The following well-known stars are listed for the purpose of comparison.
Holmberg IX V1 A 337[138] Holmberg IX M81 Group L/Teff Primary star of a yellow supergiant contact binary.
Holmberg IX V1 B 292[138] Holmberg IX M81 Group L/Teff Secondary star of a yellow supergiant contact binary.
NGC 2363-V1 Script error: No such module "val".–Script error: No such module "val".[139] NGC 2366 M81 Group L/Teff
[HMR2016] N4038 13068 124-885[140] NGC 4038 NGC 4038 Group L/Teff
[HMR2016] N4038 46842 88-815[141] NGC 4038 NGC 4038 Group L/Teff

Outside the Virgo supercluster

Note that this list does not include the candidate JWST dark stars, with estimated radii of up to Script error: No such module "convert".[142] or Quasi-stars, with theoretical models suggesting that they could reach radii of up to Script error: No such module "convert"..[143]

Star name Solar radii
(Sun = 1) 		Galaxy Group MethodTemplate:Efn Notes
Quyllur Template:Solar radius calculator[144] 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[145] Sunburst galaxy PSZ1 G311.65-18.48 L/Teff The most luminous known star.[146]
Mothra 271[147] LS1 MACS J0416.1-2403 L/Teff A binary star at cosmological distances.

Transient events

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

List of largest stars during transient events
Star or transient event name Solar radii
(Sun = 1) 		Year Galaxy Group Method Notes
AT 2017jfs >33,000[148] 2017 NGC 4470 L/Teff
SNhunt151 <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[149] 2014 UGC 3165 LDC 331 L/Teff
SN 2015bh Script error: No such module "val".[150] 2015 NGC 2770 LDC 616 L/Teff
AT 2018hso 10,350[151] 2018 NGC 3729 M109 Group L/Teff
AT 2023clx <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[152] 2023 NGC 3799 nest 101314 L/Teff
M51 OT2019-1 <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[153] 2019 Whirlpool Galaxy M51 Group L/Teff
η Carinae 4,319 – 6,032[87] 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.[154]
AT 2010dn <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[155] 2010 NGC 3180 LDC 743 L/Teff
SN 2011fh 3,980[156] 2011 NGC 4806 Abell 3528 L/Teff
AT 2014ej <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[157] 2014 NGC 7552 Grus Quartet L/Teff
V838 Monocerotis 3,190[78] 2002 Milky Way Local Group L/Teff
SN2008S <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[155] 2008 NGC 6946 NGC 6946 Group L/Teff
SNhunt120 <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[158][157] 2012 NGC 5775 Virgo Cluster L/Teff
AT 2017be <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[159] 2017 NGC 2537 L/Teff
PHL 293B star 1,348 – 1,463[160] 2002 PHL 293B L/Teff
SNhunt248 ~850[161] 2014 NGC 5806 NGC 5846 Group L/Teff
SN 2002kg 704[162] 2002 NGC 2403 M81 Group L/Teff
R71 500[163] 2012 Large Magellanic Cloud Local Group L/Teff
SN 2000ch 500[164] 2000 NGC 3432 LDC 743 L/Teff
Godzilla 430 – 2,365[145] 2015 Sunburst galaxy L/Teff
AT 2016blu ~330[165] 2012Template:Snd2022 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 1999Template:Snd2009.[165]

SN Progenitors

List of largest supernova progenitors
Star or supernova name Solar radii
(Sun = 1) 		Year Galaxy Group Method Notes
SN 2020xva 1,520[166] 2020 SDSS J173209.23+533908.4 L/Teff
SN 2019ust 1,440[166] 2019 UGC 548 [TKT2016] 54 L/Teff
N6946-BH1 1,216-2,720[167] 2008 NGC 6946 LDC 1412 L/Teff Not a true supernova and was a failed supernova.
SN 2021ibn 1,200[166] 2021 2MASX J08501445+3701127 L/Teff
SN 2020afdi 1,200[166] 2020 NGC 5836 L/Teff
SN 2002hh 1,184-1,904[168] 2002 NGC 6946 LDC 1412 L/Teff
SN 2018fif 1,174[169] 2018 UGC 85 LGG 485 L/Teff
SN 1999an 1,131-1,492[168] 1999 IC 755 Virgo Cluster L/Teff
SN 2019eoh Script error: No such module "val".[166] 2019 IC 4145 L/Teff
SN 2017eaw 1,000-2,000[170] 2017 NGC 6946 LDC 1412 L/Teff
SN 2020faa <span data-sort-value="Script error: No such module "sortkey"." style="display:none;">Script error: No such module "Math".[171] 2020 2MASS J14470904+7244157 L/Teff
SN 2023ixf Script error: No such module "val".[172]–Script error: No such module "val".[173] 2023 Pinwheel galaxy M101 Group L/Teff
SN 2004et 893-976[168] 2004 NGC 6946 LDC 1412 L/Teff
SN 2019oxn Script error: No such module "val".[166] 2019 SDSS J175113.25+512300.1 L/Teff
SN 2018aoq 742[168] 2018 NGC 4151 LDC 867 L/Teff
NGC3021-CANDIDATE-1 722[174] 2005 NGC 3021 LDC 676 L/Teff Not a true supernova and was a failed supernova.
SN 1999br 717-945[168] 1999 NGC 4900 Virgo Cluster L/Teff
SN 2020jfo Script error: No such module "val".[175] 2020 Messier 61 Virgo Cluster L/Teff
SN 2009hd 686[168] 2009 Messier 66 M66 Group L/Teff Progenitor was similar to V915 Scorpii.
SN 1999em 663-942[168] 1999 NGC 1637 [TSK2008] 975 L/Teff
SN 2009md 663[168] 2009 NGC 3389 LGG 214 L/Teff
SN 2012ec 625[168] 2012 NGC 1084 NGC 1052 Group L/Teff
SN 1999gi 593-783[168] 1999 NGC 3184 LDC 743 L/Teff
SN 2006my 585-941[168] 2006 NGC 4651 Virgo Cluster L/Teff
SN 2007aa 559-737[168] 2007 NGC 4030 Virgo Cluster L/Teff
SN 2012aw 549-882[168] 2012 Messier 95 LGG 217 L/Teff
SN 2004A 539-866[168] 2004 NGC 6207 [TKS2008] 816 L/Teff
SN 2001du 534-744[168] 2001 NGC 1365 Fornax Cluster L/Teff
SN 2012A 513-588[168] 2012 NGC 3239 LDC 778 L/Teff
SN 2013ej 512[168] 2013 Messier 74 M74 Group L/Teff
SN 2009kr 504-2,182[168] 2009 NGC 1832 NGC 1832 Group L/Teff Progenitor was a RSG or YSG.
SN 2020cxd 500[166] 2020 NGC 6395 LDC 1246 L/Teff
SN 2024abfl 499-592[176] 2024 NGC 2146 L/Teff
SN 2008bk 494-567[168] 2008 NGC 7793 Sculptor Group L/Teff
SN 2020fqv 490[166] 2020 NGC 4568 Virgo Cluster L/Teff
SN 2024ggi 477[168] 2024 NGC 3621 [TSK2008] 310 L/Teff
SN 2008cn 439[168] 2008 NGC 4603 LGG 301 L/Teff Progenitor was a YSG.
SN 2023axu Script error: No such module "val".[177] 2023 NGC 2283 [TSK2008] 995 L/Teff
SN 2005cs 409[168] 2005 Whirlpool Galaxy M51 Group L/Teff
SN 2004dg 407-654[168] 2004 NGC 5806 NGC 5846 Group L/Teff
SN 2003gd 384[178] 2003 Messier 74 M74 Group L/Teff
SN 2006bc 378-608[168] 2006 NGC 2397 LGG 147 L/Teff
SN 2006ov 326-524[168] 2006 Messier 61 Virgo Cluster L/Teff
SN 2022acko 323-520[168] 2022 NGC 1300 LGG 90 L/Teff
SN 2003gm 216-278[179] 2003 NGC 5334 L/Teff
SN 2005gl 201[180] 2005 NGC 266 LGG 14 L/Teff Progenitor was a LBV.
SN 2013cu >144, 368[181] 2013 UGC 9379 L/Teff Progenitor was either a YHG or LBV.
SN 2020bio 100-1,500[182] 2020 NGC 5390 LGG 361 L/Teff
SN 1961V 100[183] 1961 NGC 1058 NGC 1023 Group L/Teff May be the hyper-eruption of a LBV.
SN 2021agco Script error: No such module "val".[184] 2021 UGC 3855 LDC 506 L/Teff Nearest ultrastripped supernova known.
SN 1987A 41.15[185] 1987 Large Magellanic Cloud Local Group L/Teff
iPTF13bvn 9.8[186] 2013 NGC 5806 NGC 5846 Group L/Teff Progenitor was WR star.

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 Script error: No such module "val".. Stars with angular diameters larger than 13Script error: No such module "String".milliarcseconds are included.

List of largest stars by apparent size (angular diameter)
Name Angular diameter
(mas) 		Angular diameter typeTemplate:Efn Distance
(light-years) 		Spectral type[187] Notes
Sun 2,000,000 0.000016 G2V The largest star by angular diameter.
R Doradus 51.18±1.24[81] LD

179±10[81]

M8III:e The largest star by angular diameter apart from the Sun.
Betelgeuse
(α Orionis) 		42.28±0.43[70] LD

408–540Script error: No such module "Su".[70]

M1-M2Ia-Iab
Antares
(α Scorpii A) 		37.31±0.09[188] LD 553.5±93.9[189] M1.5Iab
Mira
(ο Ceti) 		28.9±0.3Template:Snd34.9±0.4[190] Ross 299±33[189] M5-M9IIIe The angular diameter vary during Mira's pulsations.
Tiaki
(β Gruis) 		28.8±0.6[191] ? 177±4[189] M4.5III
Gacrux
(γ Crucis) 		24.7[92] ? 88.6±0.4[189] M3.5III
Rasalgethi
(α Herculis) 		23.95±5.03[82] Est 359±52[189] M5Ib-II
R Hydrae 23.7±1[18] ? 482±33[18] M6-9e
Arcturus
(α Boötis) 		21.06±0.17[192] LD 36.8[192] K1.5IIIFe-0.5
π1 Gruis 21[193] ? 535[193] S5,7
Aldebaran
(α Tauri) 		20.58[194]–21.1[195] LD 65.3±1[196] K5+III
GY Aquilae 20.46[18] ? 1108±98[18] M8
θ Apodis 18.1[197] ? 389±17[198] M6.5III
R Lyrae 18.016±0.224[195] LD 310Script error: No such module "Su".[199] M4.5III
Scheat
(β Pegasi) 		16.75±0.24[200] Ross 196±2[189] M2.5II-III
Gorgonea Tertia
(ρ Persei) 		16.555±0.166[195] LD 308±7[189] M4+IIIa
SW Virginis 16.11±0.13–16.8±0.34[201] UD 527±46.9[202] M7III:
R Aquarii 15.61±0.8Template:Snd16.59±1.03[201] LD 711Script error: No such module "Su".[203] M6.5–M8.5e
g Herculis 15.2±0.5Template:Snd19.09±0.19[201] LD 385±10[199] M6-III
RS Cancri 15.1±0.5Template:Snd17.2±0.4[195] LD 490±40[204] M6S
Tejat
(μ Geminorum) 		15.118±0.151[195] LD 230±10[189] M3IIIab
R Leonis Minoris 14.4±0.87[201] LD 942Script error: No such module "Su".[199] M6.5-9e
S Cephei 14.29±2.28[201] LD 1591Script error: No such module "Su".[199] C7,3e
T Cassiopeiae 14.22±0.73[201] LD 893Script error: No such module "Su".[199] M7-9e
μ Cephei (Herschel's Garnet Star) 14.11 ± 0.6[31] 2,000[30]–3060Script error: No such module "Su".[29] M2Ia
Mirach
(β Andromedae) 		13.749±0.137[195] LD 199±9[205] M0+IIIa
Menkar
(α Ceti) 		13.238±0.056[195] LD 249±8[189] M1.5IIIa Other measurements include 12.2±0.04 mas.[206]
V Cygni 13.1±0.208Template:Snd14.84±2.37[201] LD 1747Script error: No such module "Su".[199] C7,4eJ

See also

Script error: No such module "Template wrapper".Script error: No such module "Check for unknown parameters".

Notes

Template:Notelist

References

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  187. ↑ SIMBAD.
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  192. ↑ a b Script error: No such module "Citation/CS1".
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  198. ↑ Template:Cite DR3
  199. ↑ a b c d e f Script error: No such module "Citation/CS1". Data about this star can be seen here.
  200. ↑ Script error: No such module "Citation/CS1".
  201. ↑ a b c d e f g Script error: No such module "Citation/CS1".
  202. ↑ Template:Cite DR3
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  204. ↑ Template:Cite DR3
  205. ↑ Template:Cite Exoplanet Archive
  206. ↑ Script error: No such module "citation/CS1".

Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".
Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".

Cite error: Script error: No such module "Namespace detect".Script error: No such module "Namespace detect".

Script error: No such module "Check for unknown parameters".

External links

Script error: No such module "Navbox". Template:Portal bar

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