List of largest known stars

Last updated

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]

Contents

The Sun, the orbit of Earth, Jupiter, and Neptune, compared to four stars. (Pistol Star, Rho Cassiopeiae, Betelgeuse, and VY Canis Majoris) 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 be 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 useful supergiant stars can be occulted by the Moon, including Antares A (Alpha Scorpii A). 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.

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.

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:

Lists

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

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

Milky Way

List of the largest known stars in the Milky Way
Star name Solar radii
(Sun = 1)		Method [lower-alpha 1] Notes
Orbit of Saturn 2,047–2,049.9 [8] [lower-alpha 2] Reported for reference
WOH G64 (For comparison)1,540 [9] [10] [11] [12] [13] ± 77 [9] L/TeffLocated in the Large Magellanic Cloud.

Possibly the largest known star. [9] [10] [14] [11]

Theoretical limit of star size (Milky Way)~1,500 [15] This value comes from the rough average radii of the three largest stars studied in the paper. It is consistent with the largest possible stellar radii predicted from the current evolutionary theory, and it is believed that stars above this radius would be too unstable and usually do not form. [15]
Reported for reference
RSGC1-F01 1,436, [16] 1,450, [17] 1,530+330
−424 [18] 		L/Teff
VY Canis Majoris 1,420±120 [19] [20] [21] ADAn 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 in the Milky Way. [20]
AH Scorpii 1,411±124 [23] [24] AD
RSGC1-F061,382+298
−384 [18] 		L/Teff
CD-33 12241 1,359 [25] L/Teff
Stephenson 2 DFK 2 1,301+259
−325 [18] 		L/TeffAnother red supergiant, Stephenson 2 DFK 1 has an estimated radius of 2,150 R☉. However, its luminosity is significantly above the Humphreys-Davidson limit and it is potentially not a member of the Stephenson 2 cluster. It also has a distance with an uncertainty of ≳50% due to it only being measured with radial velocities. [18] [26]
Stephenson 2 DFK 49 1,300+258
−323 [18] 		L/TeffA K-type star similar to the yellow hypergiant IRC +10420 that has left its red supergiant stage. [18]
CD-26 5055 1,280+20
−123 [27] 		L/Teff
RSGC1-F101,246+264
−337 [18] 		L/Teff
Westerlund 1 W237 (Westerlund 1 BKS B)1,241±70 [28] L/TeffPossibly a foreground giant. [29]
ST Cephei 1,218 [25] L/Teff
S Persei 1,212 [30]  –1,364±6 [31] AD
IRC -10414 ~1,200 [32] L/Teff
V517 Monocerotis 1,196+80
−159 [27] 		L/Teff
PZ Cassiopeiae 1,190±238(–1,940±388), [15] 1,231, [25] 1,364 [33] L/Teff
RSGC1-F051,185+254
−325 [18] 		L/Teff
GCIRS 7 1,170±60 [34] –1,368, [35] 1,359 [36] AD & L/Teff
Westerlund 1 W26 (Westerlund 1 BKS AS)1,165±58–1,221±120 [28] L/Teff
EV Carinae 1,165 [37] L/Teff
[A72c] 161,157 [25] L/Teff
WY Velorum A1,157 [25] L/TeffA symbiotic binary. [38]
RSGC1-F081,150+234
−297 [18] 		L/Teff
HD 143183 (V558 Normae)1,147 [39]  –1,261 [25] L/Teff
V354 Cephei 1,139 [33]  –1,245 [25] L/Teff
RSGC1-F02 1,499, [16] 1,128+238
−303, [18] 1,500 [17] 		L/Teff
VX Sagittarii 1,120 –1,550, [40] 1,200, [41] 1,356, [42] 1,400 [43] L/TeffThe most luminous known Asymptotic giant branch star. [42] Widely recognised as being among the largest known stars. [44]
Orbit of Jupiter 1,114.5–1,115.8 [8] [lower-alpha 2] Reported for reference
V582 Cassiopeiae 1,111 [25] L/Teff
RW Cygni 1,103+251
−177 [45] 		AD
RSGC1-F041,082, [16] 1,100, [17] 1,422+305
−390 [18] 		L/Teff
RT Carinae 1,090±218 [15] L/Teff
V384 Persei 1,088 [46] L/Teff
UU Persei 1,079+9
−8 [27] 		L/Teff
R Fornacis 1,078 [46] L/Teff
LL Pegasi 1,074 [47] L/Teff
V396 Centauri 1,070±214 [15] –1,145.31 [48] L/Teff & ?
HD 126577 1,066+9
−32 [27] 		L/Teff
V766 Centauri Aa1,060–1,160 [49] ?V766 Centauri Aa is a rare variable yellow hypergiant.
V1300 Aquilae (IRC -10529)1,059 [50] L/Teff
HaroChavira 1 1,058 [51] L/Teff
VV Cephei A1,050 [52] ADWidely recognised as being among the largest known stars. [44]
CM Velorum 1,048 [25]  –1,416.24+0.40
−0.96 [27] 		L/Teff
AG Camelopardalis 1,048 [25] L/Teff
WX Piscium 1,044 [50] L/Teff
KU Andromedae (IRC +40004)1,044 [50] L/Teff
KY Cygni 1,032 [51] –(1,420±284–2,850±570) [15] L/Teff
RSGC1-F111,032+210
−267 [18] 		L/Teff
BC Cygni 1,031 [51] –1,187+34
−37 [27] 		L/TeffA more detailed but older study gives values of 1,081R☉ (856–1,375) for the year 2000, and 1,303R☉ (1,021–1,553) for the year 1900. [53]
RW Leonis Minoris 1,028 [50] L/Teff
V346 Puppis 1,025 [46] L/Teff
V530 Cassiopeiae 1,017 [25] L/Teff
RSGC1-F13 1,017+221
−286, [18] 1,430, [17] 1,097 [16] 		L/Teff
V602 Carinae 1,015 [54]  –1,050±165 [55] AD
CK Carinae 1,013–1,060±212 [15] L/Teff
U Lacertae A1,013 [25] L/Teff
KW Sagittarii 1,009±142 [23] [24] AD
Ve 4-64 1,007 [25] L/Teff
RSGC1-F071,006+215
−276 [18] 		L/Teff
V349 Carinae 1,002+12
−74 [27] 		L/Teff
IRAS 18111-2257 ~1,000 [56] (~8×1013 –1×1014 cm)L/TeffEstimated based on the bolometric luminosity and assumed effective temperature of 2,000 K. Another period-luminosity-derived luminosity for this star results in a radius of 1,730 R☉. [56]
V674 Cephei 999 [25] L/Teff
RSGC1-F09996+210
−269 [18] 		L/Teff
CIT 11 982 [25] L/Teff
V381 Cephei Aa977 [25] L/Teff
MSX6C G086.5890-00.7718(975+175
−183–1,035+186
−158) [57] –1,196.91+6.31
−6.35 [27] 		L/TeffLower 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.
μ Cephei (Herschel's Garnet Star)972±228, [58] 1,000 –1,200, [59] 1,259, [60] 1,420, [15] [59] 1,500 [44] ADWidely recognised as being among the largest known stars. [44]
V3953 Sagittarii (IRC -30398)970 [50] L/Teff
UW Aquilae 964 [25] L/Teff
S Aurigae 957 [46] L/Teff
RSGC1-F12955+204
−262 [18] 		L/Teff
RSGC1-F03942+179
−222, [18] 1,200, [17] 1,167 [16] 		L/Teff
V398 Cassiopeiae (HD 240275)941 [25] L/Teff
IRC +60342 940 [25] L/Teff
V384 Persei 937 [50] L/Teff
ψ1 Aurigae 934 [25] L/Teff
GX Monocerotis 931 [50] L/Teff
V645 Cephei 920 [25] L/Teff
S Cassiopeiae 920 [50] L/Teff
NV Aurigae (IRC +50137)918 [50] L/Teff
Stephenson 2 DFK 5 911 [18] L/Teff
UY Scuti 909 [25] L/Teff
NR Vulpeculae 908 [25] L/Teff
V1111 Ophiuchi (IRC +10365)902 [50] L/Teff
RW Cephei 900–1,760, [61] 940 [62] AD & L/Teff
NSV 25875 891 [63] L/Teff
V774 Sagittarii 889 [25] L/Teff
V923 Centauri 881 [25] L/Teff
IRAS 20341+4047 880 [25] L/Teff
V540 Sagittarii 880 [25] L/Teff
V386 Cephei 879 [25] L/Teff
T Lyrae 876 [50] L/Teff
Trumpler 27 MMU 1 875.86+5.5
−11.83 [27] 		L/Teff
V437 Scuti 874 [63] L/Teff
TYC 3996-552-2 870 [25] L/Teff
V1417 Aquilae 866 [64] L/Teff
V669 Cassiopeiae 859 [63] L/Teff
FX Serpentis 857 [46] L/Teff
Westerlund 1 W20 (Westerlund 1 BKS D)858±48 [28] L/Teff
V348 Velorum 855 [25] L/Teff
Stephenson 2 DFK 3 855 [18] L/Teff
BI Cygni 851 [65] –1,240±248 [15] L/Teff
MY Cephei 849 [25]  –1,135 [66] L/Teff
V509 Cassiopeiae 845 [25] L/Teff
TW Carinae 835 [25] L/Teff
V358 Cassiopeiae 835 [25] L/Teff
VLH96 A 833 [67] L/Teff
V1185 Scorpii 830 [63] L/Teff
DO 26226 826 [25] L/Teff
R Cygni 825 [50] L/Teff
HD 155737 823 [25] L/Teff
6 Geminorum 821 [31] L/Teff
AZ Cygni 814+175
−124 [45] –911+57
−50 [68] 		ADEstimated based on data from the CHARA array, higher value is an average of calculated radii based on the LDD angular diameter. Another paper estimates 856+20
−14 R☉ (2011), 927+21
−15 R☉ (2012), 890+21
−15 R☉ (2014), 895+21
−15 R☉ (2015) and 890+21
−15 R☉ (2016) based on the same data. [31]
HaroChavira 2 813 [51] L/Teff
HD 300933 A806 [25] L/Teff
[W61c] R 53801 [25] L/Teff
U Arietis 801±205 [69] AD
RT Ophiuchi 801±217 [70] AD
HD 95687 797 [25] L/Teff
HD 95687 797 [25] L/Teff
II Lupi 795 [64] L/Teff
HD 62745 790 [25] L/Teff
BO Carinae 790±158 [15] L/Teff
SU Persei 780±156 [15] –1,139+34
−23 [31] 		L/TeffHigher value is one of three radii (1,139+34
−23 R☉ (2015), 1,044+31
−21 R☉ (August 2016) and 1,095+33
−22 R☉ (October 2016)) measured from observations by the CHARA array.
VR5–7 775 ± 65 [71] L/Teff
RV Aquarii 772 [50] L/Teff
T Cancri 770 [46] L/Teff
CL Carinae 770 [25] L/Teff
RS Persei 770±30 [72] AD
V355 Cephei 770±154 [15]  –790 [25] L/Teff
V Cygni 770 [64] L/Teff
BD+63 3 770 [25] L/Teff
BD+63 270 769 [25] L/Teff
GU Cephei A767 [48] ?
V644 Cephei 765 [25] L/Teff
Betelgeuse (α Orionis)764+116
−62, [73] 944 ± 157, [74] 1,002, [75] 1,021, [76] 1,074+232
−165, [74] 1,259, [74] 1,268, [74] 1,285, [74] ~1,300, [74] 1,409+319
−229 [77] [74] 		?Tenth brightest star in the night sky. [78] Widely recognised as being among the largest known stars, [44] radius decreased to ~500 R☉ during the 2020 great dimming event. [79]
BM VIII 11 754 [25] L/Teff
[SLN74] 2130752 [25] L/Teff
IRAS 10176-5802 751.2+0.4
−0.6 [27] –(793+281
−152–849+172
−133) [57] 		L/TeffLower 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 [15] L/Teff
GY Aquilae 748 [24]  –920 [43]
RU Virginis 745 [46] L/Teff
TT Centauri 744 [50] L/Teff
UU Pegasi 742±193 [70] AD
IM Cassiopeiae 740 [25] L/Teff
RSGC3-S3735 [18] L/Teff
Stephenson 2 DFK 10 730 [18] L/Teff
RSGC3-S15728 [18] L/Teff
HD 105563 A723 [25] L/Teff
Westerlund 1 W75 (Westerlund 1 BKS E)722±36 [28] L/Teff
NO Aurigae 721 [80] L/Teff
RX Telescopii 716 [25] L/Teff
V Camelopardalis 716±185 [70] AD
CD-61 3575 716 [25] L/Teff
S Cephei 715 [46] L/Teff
AS Cephei 713 [25] L/Teff
V770 Cassiopeiae (BD+60 299)713 [25] L/Teff
AZ Cephei 712 [25] L/Teff
S Canis Minoris 710 [81]
MZ Puppis 708 [25] L/Teff
GP Cassiopeiae 707 [25]  –771.74+0.23
−0.86 [27] 		L/Teff
GCIRS 12N 703 ± 107 [71] L/Teff
V528 Carinae 700±140 [15] L/Teff
The following well-known stars are listed for the purpose of comparison.
Antares A (α Scorpii)680 [82] ADFourteenth brightest star in the night sky. [78] Widely recognised as being among the largest known stars. [44]
119 Tauri (CE Tauri, Ruby Star)587 – 593 [83] AD
CW Leonis 560 [84] L/TeffThe nearest carbon star.
V838 Monocerotis 364 [85] L/TeffDuring the 2002 Red Nova, the star's radius may have increased up to 3,190 R☉. [86]
La Superba (Y Canum Venaticorum)342 [87] AD
Mira A (ο Ceti)332–402 [88] AD
Orbit of Mars 322–323.1 [8] [lower-alpha 2] Reported for reference
Pistol Star (V4647 Sagittarii)306 [89] ?
R Doradus 298±21 [90] ADThe extrasolar star with the largest apparent size.
Rasalgethi A (α Herculis)284±60 (264–303) [91] L/Teff
Unurgunite (σ Canis Majoris)272.15+12.22
−1.94 [92] 		L/Teff
Cygnus OB2#12 246 [93] ?One of the most massive and luminous stars known.
η Carinae 240 [94] ?During the 1843 Great Eruption, the star's radius may have increased up to 4,319–6,032 R☉. [95]
Wezen (δ Canis Majoris)215±66 [96] ADThirty-sixth brightest star in the night sky. [78]
Orbit of Earth (~1 AU)214 [8] [lower-alpha 2] Reported for reference
Enif (ε Pegasi)210.4–210.7 [97] ?
Suhail (λ Velorum)210 [98] ?
Deneb (α Cygni)203±17 [99] ?Eighteenth brightest star in the night sky. [78]
Orbit of Venus 158.6 [8] [lower-alpha 2] Reported for reference
Tiaki (β Gruis)138 [100] L/Teff
Gacrux (γ Crucis)120 [101] Twenty-sixth brightest star in the night sky.
Orbit of Mercury 82.9–84.6 [8] [lower-alpha 2] Reported for reference
Rigel (β Orionis)78.9 ± 7.4 [102] Seventh brightest star in the night sky.
Canopus (α Carinae)73.3 [103] Second brightest star in the night sky.
Aldebaran (α Tauri)45.1 [104] Fourteenth brightest star in the night sky.
Polaris (α Ursae Minoris)37.5 [105] The current star in the North Pole. It is a Classical Cepheid variable, and the brightest example of its class.
Arcturus (α Boötis)25.4 ± 0.2 [106] 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 [107] The nearest giant star to the Earth.
Regulus A (α Leonis)4.35 ± 0.1 [107] The nearest B-type star to the Earth.
Vega (α Lyrae)2.726±0.006 × 2.418±0.012 [108] Fifth brightest star in the night sky. [78]
Sirius A (α Canis Majoris)1.711 [109] The brightest star in the night sky.
Rigil Kentaurus (α Centauri)1.2175 [110] Third brightest star in the night sky.
Sun 1The largest object in the Solar System.

Magellanic Clouds

List of the largest known stars in the Magellanic Clouds
Star name Solar radii
(Sun = 1)		GalaxyMethod [lower-alpha 1] Notes

L/Teff

WOH G64 1,540 [9] [10] [11] [12] [13] ± 77 [9] Large Magellanic CloudL/TeffSurrounded by a large dust cloud. [111] [112] Possibly the largest known star. [9] [10] [14] [11]
WOH S1701,461 [113] Large Magellanic CloudL/Teff
HD 2695511,439 [113] Large Magellanic CloudL/Teff
HV 124631,420 [113] Large Magellanic CloudL/Teff
HV 888 1,374 [113] –1,584 [12] Large Magellanic CloudL/Teff
IRAS 05280–6910 1,367 [114] Large Magellanic CloudL/TeffThe most reddened object in the Large Magellanic Cloud. [12]
LMC 230951,280 [113] Large Magellanic CloudL/Teff
MSX LMC 5971,278 [115] –1,444 [12] Large Magellanic CloudL/Teff
OGLE BRIGHT-LMC-LPV-521,275 [113] –1,384 [115] Large Magellanic Cloud
HV 28341,253 [115] Large Magellanic CloudL/Teff
LMC 1450131,243 [113] Large Magellanic CloudL/Teff
IRAS 05346-69491,211 [116] Large Magellanic CloudL/TeffIt has an estimated mass-loss rate of 0.0017 M☉ (566 Earths) per year, the highest for any star. [116]
HV 56181,163 [113] Large Magellanic CloudL/Teff
HV 22421,160 [117]  –1,180 [113] Large Magellanic CloudL/Teff
LMC 253201,156 [113] Large Magellanic CloudL/Teff
WOH S264 ([W60] B90)1,149 [115] –1,390+130
−110 [10] 		Large Magellanic CloudL/TeffFurther investigation is needed to constrain the luminosity and radius with more certainty. [10]
SMC 185921,129 [113] Small Magellanic CloudL/Teff
MSX SMC 0181,119 [116] Small Magellanic CloudL/Teff
LMC2521,117 [113] –1,164 [115] Large Magellanic Cloud
LMC0451,112 [113] Large Magellanic CloudL/Teff
SP77 21-121,103 [113] Large Magellanic CloudL/Teff
MSX LMC 8101,104 [115] Large Magellanic CloudL/Teff
WOH S3381,100 [117] Large Magellanic CloudL/Teff
LMC 1360421,092 [113] Large Magellanic CloudL/Teff
LMC 1751881,090 [113] –1,317 [115] Large Magellanic Cloud
IRAS 04516-69021,085 – 1,283 [114] Large Magellanic CloudL/Teff
WOH S2741,071 [113] Large Magellanic CloudL/Teff
SP77 46-21,071 [113] Large Magellanic CloudL/Teff
[W60] D441,063 [113] Large Magellanic CloudL/Teff
HV 122331,057 [113] Large Magellanic CloudL/Teff
MSX LMC 5891,051 [115] Large Magellanic CloudL/Teff
MSX LMC 9471,050 [115] Large Magellanic CloudL/Teff
LMC 1442171,039 [113] Large Magellanic Cloud
SP77 31-181,038 [113] Large Magellanic CloudL/Teff
IRAS 05402-69561,032 [114] Large Magellanic CloudL/Teff
IRAS 04509-6922(1,027-2,249) [114] –1,187 [115] Large Magellanic CloudL/Teff
HV 22551,027 [113] –1,236 [115] Large Magellanic Cloud
TRM 361,019 [113] Large Magellanic CloudL/Teff
LMC 1755491,005 [113] Large Magellanic CloudL/Teff
TRM 891,004 [113] –1,526 [115] Large Magellanic Cloud
LMC 149767994 [113] Large Magellanic CloudL/Teff
UCAC2 2674864 (HV 2834)990+115
−100 [10] 		Large Magellanic CloudL/Teff
HV 996988 [113] –1,176 [115] Large Magellanic Cloud
W61 8-88986 [113] Large Magellanic CloudL/Teff
HV 2362982 [113]  –1,030 [117] Large Magellanic CloudL/Teff
MG73 59979 [118] Large Magellanic CloudL/TeffA yellow supergiant.
HD 268757979 [118] Large Magellanic CloudL/TeffA G8 yellow hypetgiant.
SMC 56389976 [113] Small Magellanic CloudL/Teff
LMC 136404974 [113] Large Magellanic CloudL/Teff
SP77 46-32973 [113] –1,133 [115] Large Magellanic Cloud
HV 2084967 [113] –1,083 [115] Small Magellanic Cloud
WOH S74965 [113] –1,014 [115] Large Magellanic CloudL/Teff
SMC 10889963 [113] Small Magellanic CloudL/Teff
TRM 67951 [113] Large Magellanic CloudL/Teff
LHA 120-S 26951 [113] Large Magellanic CloudL/Teff
LMC 139413951 [113] Large Magellanic CloudL/Teff
TRM 87947 [113] Large Magellanic CloudL/Teff
LMC 148035947 [113] Large Magellanic CloudL/Teff
HV 12802946 [113] –1,377 [115] Large Magellanic Cloud
SMC 18136 945 [113] Small Magellanic CloudL/Teff
LMC 142202943 [113] Large Magellanic CloudL/Teff
LMC 147199939 [113]  –990 [117] Large Magellanic CloudL/Teff
SP77 37-24936 [113] Large Magellanic CloudL/Teff
LMC 148381932 [113] Large Magellanic CloudL/Teff
LMC 170452920 [113] Large Magellanic CloudL/Teff
SP77 44-5918 [113] Large Magellanic CloudL/Teff
LMC 66778915 [113]  –990 [117] Large Magellanic CloudL/Teff
NGC371 R20913 [119] Small Magellanic CloudL/Teff
LMC 150040911 [113] Large Magellanic CloudL/Teff
HV 2236911 [113] –971 [115] Large Magellanic CloudL/Teff
TRM 108906 [113] Large Magellanic CloudL/Teff
LMC 169142902 [113] Large Magellanic CloudL/Teff
WOH S457902±45 [120] Large Magellanic CloudL/Teff
IRAS 04498-6842 (LI-LMC 60)(898-1,660) [114]  –1,137 [115]  –1,765, [12] 1,224 [113] Large Magellanic CloudL/TeffLower 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☉. [12]
LMC 135720898 [113] Large Magellanic CloudL/Teff
SMC 81961892 [113] Small Magellanic CloudL/Teff
SP77 44-19891 [113] –1,297 [115] Large Magellanic CloudL/Teff
SP77 45-49890 [113] Large Magellanic CloudL/Teff
LMC 175464892 [115] –982 [113] Large Magellanic Cloud
SMC 49478888 [113] Small Magellanic CloudL/Teff
HV 12185890+55
−65 [10] 		Large Magellanic CloudL/Teff
SP77 45-53885 [115] –981 [113] Large Magellanic Cloud
LMC 170079882 [113] Large Magellanic CloudL/Teff
SMC 5092880 [113] Small Magellanic CloudL/Teff
HV 12793880+45
−65 [10] 		Large Magellanic CloudL/Teff
W61 21-22877 [113] Large Magellanic CloudL/Teff
SP77 35-1877 [113] Large Magellanic CloudL/Teff
UCAC3 43-23216873 [113] Large Magellanic CloudL/Teff
HV 11423 872 [113] Small Magellanic CloudL/Teff
WOH S57875+70
−60 [10] 		Large Magellanic CloudL/Teff
SP77 53-3870 [113] Large Magellanic CloudL/Teff
SP77 36-14870 [113] Large Magellanic CloudL/Teff
SP77 31-19870 [113] Large Magellanic CloudL/Teff
LMC 158646865 [113] Large Magellanic CloudL/Teff
SP77 31-20864 [113] Large Magellanic CloudL/Teff
LMC 113364864 [113] Large Magellanic CloudL/Teff
SMC 83202864 [113] Small Magellanic CloudL/Teff
LMC 175746863 [113] Large Magellanic CloudL/Teff
LMC207863 [113] Large Magellanic CloudL/Teff
SP77 29-8858 [113] Large Magellanic CloudL/Teff
SP77 54-38859 [115] –911 [113] Large Magellanic Cloud
LMC 174714855 [113] –965 [115] Large Magellanic Cloud
LMC 176135854 [113] Large Magellanic CloudL/Teff
LMC178845 [113] Large Magellanic CloudL/Teff
SP77 31-26845 [113] Large Magellanic CloudL/Teff
LMC 106201844 [113] Large Magellanic CloudL/Teff
SP77 48-13838 [113] Large Magellanic CloudL/Teff
MSX LMC 1318837 [113] Large Magellanic CloudL/Teff
SP77 28-13835 [113] Large Magellanic CloudL/Teff
LMC 143898833 [113] Large Magellanic CloudL/Teff
TYC 9161-866-1833 [113] Large Magellanic CloudL/Teff
SMC 59803829 [113] Small Magellanic CloudL/Teff
LMC 157401828 [113] Large Magellanic CloudL/Teff
SP77 39-22828 [113] Large Magellanic CloudL/Teff
WOH S52828 [113] Large Magellanic CloudL/Teff
SP77 30-22826 [113] Large Magellanic CloudL/Teff
LMC 145728826 [113] Large Magellanic CloudL/Teff
LMC 169049825 [113] Large Magellanic CloudL/Teff
SP77 46-34825 [113] Large Magellanic CloudL/Teff
LMC 177997825 [115] –867 [113] Large Magellanic Cloud
SP77 28-2825±60 [10] Large Magellanic CloudL/Teff
SP77 22-9823 [113]  –850 [117] Large Magellanic CloudL/Teff
Z Doradus824±108 [120] –956 [115] Large Magellanic CloudL/Teff
WOH S421822 [113] –840 [115] Large Magellanic Cloud
LMC 72727822 [113] Large Magellanic CloudL/Teff
SP77 37-28821 [113] Large Magellanic CloudL/Teff
MSX LMC 575816 [113] –933 [115] Large Magellanic Cloud
LMC 143035815 [113] Large Magellanic CloudL/Teff
WOH S49815 [113] Large Magellanic CloudL/Teff
HD 269723814 [118] –829 [121] Large Magellanic CloudL/TeffA yellow hypergiant.
SP77 52-28812 [113] Large Magellanic CloudL/Teff
SHV 0520422-693821808 [113] Large Magellanic CloudL/Teff
HD 268850808 [115] –898 [113] Large Magellanic Cloud
SMC 20133809 [115] –835 [113] Small Magellanic Cloud
SMC 25888804 [113] Small Magellanic CloudL/Teff
SP77 55-20803 [113] Large Magellanic CloudL/Teff
PGMW 1058800 [113] Large Magellanic CloudL/Teff
LMC 145112798 [113] Large Magellanic CloudL/Teff
SMC 47757795 [113] Small Magellanic CloudL/Teff
LMC 175709794 [113] Large Magellanic CloudL/Teff
SMC 46497794 [113] Small Magellanic CloudL/Teff
WOH S60789 [113] Large Magellanic CloudL/Teff
WOH S102789 [113] Large Magellanic CloudL/Teff
LMC 164709787 [113] Large Magellanic CloudL/Teff
SP77 31-28787 [113] Large Magellanic CloudL/Teff
TRM 73787 [115] –816 [113] Large Magellanic Cloud
SP77 31-21784 [113] Large Magellanic CloudL/Teff
SMC 8930784 [113] Small Magellanic CloudL/Teff
PMMR 62 784 [113] Small Magellanic CloudL/Teff
SP77 46-31782 [113] Large Magellanic CloudL/Teff
LMC211780 [113] Large Magellanic CloudL/Teff
LMC 140403778 [113] Large Magellanic CloudL/Teff
LMC 134383778 [113] –803 [115] Large Magellanic CloudL/Teff
SP77 47-11778 [113] Large Magellanic CloudL/Teff
SP77 40-7778 [113]  –810 [117] Large Magellanic CloudL/Teff
W61 19-24780+50
−70 [10] 		Large Magellanic CloudL/Teff
WOH S28780 [117] Large Magellanic CloudL/Teff
LMC 141568776 [113] Large Magellanic CloudL/Teff
SP77 51-2776 [113] Large Magellanic CloudL/Teff
SP77 31-43773 [113] Large Magellanic CloudL/Teff
MSX LMC 833773 [113] –849 [115] Large Magellanic Cloud
SP77 52-32772 [113] Large Magellanic CloudL/Teff
SP77 22-10767 [113] Large Magellanic CloudL/Teff
SP77 48-6768 [121] Large Magellanic CloudL/Teff
SMC 12322765 [113] Small Magellanic CloudL/Teff
WOH S517764 [113] Large Magellanic CloudL/Teff
WOH S183763 [113] Large Magellanic CloudL/Teff
LMC256762 [113] Large Magellanic CloudL/Teff
LMC 154311762 [113] Large Magellanic CloudL/Teff
LMC 119219762 [113] Large Magellanic CloudL/Teff
WOH S452762±275 [120] Large Magellanic CloudL/Teff
MSX SMC 024761 [115] Large Magellanic CloudL/Teff
WOH S282758 [113] Large Magellanic CloudL/Teff
LMC 64048758 [113] Large Magellanic CloudL/Teff
PGMW 3160758 [113] Large Magellanic CloudL/Teff
WOH S438757±211 [120] Large Magellanic CloudL/Teff
LMC 61753755 [113] Large Magellanic CloudL/Teff
LMC 140296754 [113] Large Magellanic CloudL/Teff
WOH S478753 [113] Large Magellanic CloudL/Teff
LMC 139027751 [113]  –790 [117] Large Magellanic CloudL/Teff
SP77 45-16749 [113]  –800 [117] Large Magellanic CloudL/Teff
SP77 37-20749 [113] Large Magellanic CloudL/Teff
SP77 54-27750 [117]  –758 [113]  –800 [117] Large Magellanic CloudL/Teff
LMC 155529747 [113] Large Magellanic CloudL/Teff
LMC 143877746 [113] Large Magellanic CloudL/Teff
SMC 64663745 [113] Small Magellanic CloudL/Teff
WOH G302745 [113] Large Magellanic CloudL/Teff
TRM 65743 [113] Large Magellanic CloudL/Teff
HV 12149741 [113] –767 [115] Small Magellanic Cloud
SMC 50840740 [113] Small Magellanic CloudL/Teff
SMC 46662740 [113] –874 [115] Small Magellanic Cloud
SP77 29-11738 [113] Large Magellanic CloudL/Teff
SMC 30616737 [113] Small Magellanic CloudL/Teff
LMC 162635736 [113] Large Magellanic CloudL/Teff
SP77 39-17736 [113]  –760 [117] Large Magellanic CloudL/Teff
LMC 163466734 [113] Large Magellanic CloudL/Teff
HV 2310734 [115] Large Magellanic CloudL/Teff
SP77 44-17732 [113] Large Magellanic CloudL/Teff
SP77 38-5a732 [113] Large Magellanic CloudL/Teff
LMC 67982730 [113] Large Magellanic CloudL/Teff
LHA 120-S 129730 [113] Large Magellanic CloudL/Teff
PMMR 64730+75
−65 [10] 		Small Magellanic CloudL/Teff
SP77 51-15727 [113] Large Magellanic CloudL/Teff
LMC 168757725 [113] Large Magellanic CloudL/Teff
LMC 163007725 [113] Large Magellanic CloudL/Teff
W61 8-14724 [113] Large Magellanic CloudL/Teff
IRAS 05425-6914724 [113] Large Magellanic CloudL/Teff
SMC 55188724 [113] Small Magellanic CloudL/Teff
SP77 44-13721 [113] Large Magellanic CloudL/Teff
MSX LMC 905719 [113] Large Magellanic CloudL/Teff
LMC 147928719 [113] Large Magellanic CloudL/Teff
LH 43-15719 [113]  –740 [117] Large Magellanic CloudL/Teff
PMMR 116717 [121] Small Magellanic CloudL/Teff
LMC 123778715 [113] Large Magellanic CloudL/Teff
WOH S314714 [113] Large Magellanic CloudL/Teff
SP77 61-23713 [113] Large Magellanic CloudL/Teff
WOH S230713 [113] Large Magellanic CloudL/Teff
LMC 150396710 [113] Large Magellanic CloudL/Teff
SP77 48-17709 [113] Large Magellanic CloudL/Teff
LMC 165242707 [113] Large Magellanic CloudL/Teff
SP77 51-19707 [113] Large Magellanic CloudL/Teff
LMC 170539707 [113] Large Magellanic CloudL/Teff
LMC 154729705 [113] Large Magellanic CloudL/Teff
OGLE BRIGHT-LMC-LPV-101703 [113] Large Magellanic CloudL/Teff
MSX SMC 055702 [119] –1,557+215
−130 [115] 		Small Magellanic CloudL/TeffA super-AGB candidate.
LMC 168290702 [113] Large Magellanic CloudL/Teff
LMC180702 [113] Large Magellanic CloudL/Teff
SP77 45-2702 [113] Large Magellanic CloudL/Teff
The following well-known stars are listed for the purpose of comparison.
HV 2112 675 – 1,193 [122] Small Magellanic CloudL/TeffIt has been previously considered to be a possible Thorne–Żytkow object. [122]
HV 11417 673 [115] –798 [113] Small Magellanic CloudL/TeffCandidate Thorne-Zytkow object. [122]
HD 269953647 [118] –720 [121] Large Magellanic CloudL/TeffA yellow hypergiant.
HD 33579 471 [121] Large Magellanic CloudL/TeffThe brightest star in the Large Magellanic Cloud.
S Doradus 100 [123] Large Magellanic CloudL/TeffA luminous blue variable in the S Doradus instability strip.
HD 37974 99 [124] Large Magellanic CloudL/TeffAn unusual blue hypergiant with a large dusty disk. [124]
R136a1 42.7+1.6
−0.9 [125] 		Large Magellanic CloudL/TeffOne of the most luminous and most massive stars.
BAT 99-98 37.5 [126] Large Magellanic CloudL/TeffOne of the most luminous and most massive stars.
HD 5980 A24 [127] Small Magellanic CloudL/TeffA luminous blue variable and one of the most luminous stars.

Andromeda (M31) and Triangulum (M33) galaxies

List of the largest known stars in Andromeda and Triangulum galaxies
Star name Solar radii
(Sun = 1)		GalaxyMethod [lower-alpha 1] Notes
WOH G64 (For comparison)1540 [9] [10] [11] [12] [13] ± 77 [9] Large Magellanic CloudL/TeffLocated in the Large Magellanic Cloud.

Possibly the largest known star. [9] [10] [14] [11]

LGGS J013418.56+303808.61,363 [128] Triangulum Galaxy L/Teff
LGGS J013414.27+303417.71,342 [128] –1,479 [113] Triangulum Galaxy L/Teff
LGGS J004514.91+413735.01,324 [113] Andromeda Galaxy L/Teff
LGGS J004125.23+411208.91,302 [113] Andromeda Galaxy L/Teff
LGGS J013350.62+303230.31,283 [113] Triangulum Galaxy L/Teff
LGGS J004312.43+413747.11,279 [113] Andromeda Galaxy L/Teff
LGGS J003951.33+405303.71,272 [113] Andromeda Galaxy L/Teff
LGGS J004124.80+411634.71,240 [129] Andromeda Galaxy L/Teff
LGGS J013416.52+305155.41,227 [113] Triangulum Galaxy L/Teff
LGGS J004416.83+411933.21,209 [113] Andromeda Galaxy L/Teff
LGGS J004531.13+414825.71,201 [113] Andromeda Galaxy L/Teff
2MASS J01343365+30465471,196 [113] Triangulum Galaxy L/Teff
LGGS J013409.63+303907.61,182 [113] Triangulum Galaxy L/Teff
LGGS J004133.18+411217.21,180 [113] Andromeda Galaxy L/Teff
LGGS J004455.90+413035.21,172 [113] Andromeda Galaxy L/Teff
LGGS J013352.96+303816.01,163 [113] Andromeda Galaxy L/Teff
LGGS J004047.22+404445.51,162 [113] Andromeda Galaxy L/Teff
LGGS J004254.18+414033.61,154 [113] Andromeda Galaxy L/Teff
LGGS J004428.48+415130.91,130 [113] Andromeda Galaxy L/Teff
LGGS J013414.27+303417.71,129 [128] Triangulum Galaxy L/Teff
LGGS J004035.08+404522.31,122 [113] Andromeda Galaxy L/Teff
LGGS J013341.98+302102.01,119 [113] Triangulum Galaxy L/Teff
LGGS J013307.37+304543.21,119 [113] Triangulum Galaxy L/Teff
LGGS J004218.33+412633.91,111 [113] Andromeda Galaxy L/Teff
LGGS J004102.54+403426.51,108 [113] Andromeda Galaxy L/Teff
LGGS J013335.90+303344.51,104 [113] Triangulum Galaxy L/Teff
LGGS J013358.54+303419.91,103 [113] Triangulum Galaxy L/Teff
LGGS J013414.49+303511.61,102 [113] Triangulum Galaxy L/Teff
LGGS J013336.64+303532.31,102 [113] –1,408 [128] Triangulum Galaxy L/Teff
LGGS J004259.34+413726.01,094 [113] Andromeda Galaxy L/Teff
LGGS J004509.98+414627.51,089 [113] Andromeda Galaxy L/Teff
LGGS J013241.94+302047.51,083 [113] Triangulum Galaxy L/Teff
LGGS J004034.74+404459.61,078 [113] Andromeda Galaxy L/Teff
LGGS J004059.50+404542.61,071 [113] Andromeda Galaxy L/Teff
LGGS J013430.75+303218.81,067 [113] Triangulum Galaxy L/Teff
LGGS J013412.27+305314.11,063 [113] –1,066 [128] Triangulum Galaxy L/Teff
LGGS J013328.17+304741.51,063 [113] Triangulum Galaxy L/Teff
LGGS J004524.97+420727.21,059 [113] Andromeda Galaxy L/Teff
LGGS J013233.77+302718.81,058 [113] –1,129 [128] Triangulum Galaxy L/Teff
LGGS J004125.72+411212.71,058 [113] Andromeda Galaxy L/Teff
LGGS J004114.18+403759.81,058 [113] Andromeda Galaxy L/Teff
LGGS J013307.60+304259.01,051 [113] Triangulum Galaxy L/Teff
LGGS J004103.67+410211.81,047 [113] Andromeda Galaxy L/Teff
LGGS J013305.48+303138.51,046 [113] Triangulum Galaxy L/Teff
LGGS J004442.41+412649.51,040 [113] Andromeda Galaxy L/Teff
LGGS J013403.87+303753.21,040 [113] Triangulum Galaxy L/Teff
LGGS J013351.47+303640.31,034 [113] Triangulum Galaxy L/Teff
LGGS J004306.62+413806.21,028 [113] Andromeda Galaxy L/Teff
LGGS J013303.54+303201.21,027 [113] –1,131 [128] Triangulum Galaxy L/Teff
LGGS J004234.41+405855.91,023 [113] Andromeda Galaxy L/Teff
LGGS J004051.31+404421.71,022 [113] Andromeda Galaxy L/Teff
LGGS J004031.00+404311.11,011 [113] Andromeda Galaxy L/Teff
LGGS J013406.20+303913.61,009 [113] Triangulum Galaxy L/Teff
LGGS J013344.10+304425.11,007 [113] Triangulum Galaxy L/Teff
LGGS J004307.36+405852.21,007 [113] Andromeda Galaxy L/Teff
LGGS J013407.13+303929.5994 [113] Triangulum Galaxy L/Teff
LGGS J013312.35+303033.9993 [113] Triangulum Galaxy L/Teff
LGGS J013330.05+303145.9988 [113] Triangulum Galaxy L/Teff
LGGS J013350.84+304403.1984 [113] Triangulum Galaxy L/Teff
LGGS J013329.47+301848.3981 [113] Triangulum Galaxy L/Teff
LGGS J004148.74+410843.0981 [113] Andromeda Galaxy L/Teff
LGGS J004415.76+411750.7977 [113] Andromeda Galaxy L/Teff
LGGS J004127.44+411240.7977 [113] Andromeda Galaxy L/Teff
LGGS J013312.75+303946.1975 [113] Triangulum Galaxy L/Teff
LGGS J004027.36+410444.9973 [113] Andromeda Galaxy L/Teff
LGGS J013434.35+302627.3973 [113] Triangulum Galaxy L/Teff
LGGS J013423.29+305655.0993 [113] –972 [128] Triangulum Galaxy L/Teff
LGGS J013319.13+303642.5970 [113] Triangulum Galaxy L/Teff
LGGS J004305.77+410742.5969 [113] Andromeda Galaxy L/Teff
LGGS J013403.73+304202.4965 [113] –1,032 [128] Triangulum Galaxy L/Teff
LGGS J004346.10+411138.8962 [113] Andromeda Galaxy L/Teff
LGGS J004419.20+412343.7959 [113] Andromeda Galaxy L/Teff
LGGS J013353.91+302641.8959 [113] –1,008 [128] Triangulum Galaxy L/Teff
LGGS J013315.23+305329.0958 [113] Triangulum Galaxy L/Teff
LGGS J013315.23+305329.0956 [128] Triangulum Galaxy L/Teff
LGGS J004138.35+412320.7954 [113] Andromeda Galaxy L/Teff
LGGS J004419.45+411749.5950 [113] Andromeda Galaxy L/Teff
LGGS J013413.95+303339.6948 [113] Triangulum Galaxy L/Teff
LGGS J013336.42+303530.9947 [113] Triangulum Galaxy L/Teff
LGGS J004047.82+410936.4943 [113] Andromeda Galaxy L/Teff
LGGS J013258.18+303606.3943 [113] Triangulum Galaxy L/Teff
LGGS J004447.74+413050.0938 [113] Andromeda Galaxy L/Teff
2MASS J01343131+3046088938 [113] Triangulum Galaxy L/Teff
LGGS J004346.18+411515.0936 [113] Andromeda Galaxy L/Teff
LGGS J004304.62+410348.4936 [113] Andromeda Galaxy L/Teff
LGGS J004458.28+413154.3933 [113] Andromeda Galaxy L/Teff
LGGS J004102.82+410422.3933 [113] Andromeda Galaxy L/Teff
LGGS J013344.33+303636.0932 [113] Triangulum Galaxy L/Teff
LGGS J004631.49+421133.1932 [113] Andromeda Galaxy L/Teff
LGGS J013321.44+304045.4932 [113] –1,015 [128] Triangulum Galaxy L/Teff
LGGS J013358.04+304900.1931 [113] Triangulum Galaxy L/Teff
LGGS J013314.31+302952.91,067 [113] –930 [128] Triangulum Galaxy L/Teff
LGGS J013315.97+303153.7929 [113] Triangulum Galaxy L/Teff
LGGS J004126.14+403346.5927 [113] Andromeda Galaxy L/Teff
LGGS J004347.31+411203.6925 [113] Andromeda Galaxy L/Teff
LGGS J004252.78+405627.5923 [113] Andromeda Galaxy L/Teff
LGGS J013411.54+303312.6918 [113] Triangulum Galaxy L/Teff
LGGS J013357.08+303817.8918 [113] Triangulum Galaxy L/Teff
LGGS J003943.89+402104.6917 [113] Andromeda Galaxy L/Teff
LGGS J004503.35+413026.3916 [113] Andromeda Galaxy L/Teff
LGGS J013338.97+303828.9915 [113] Triangulum Galaxy L/Teff
LGGS J013330.27+303510.6915 [113] Triangulum Galaxy L/Teff
LGGS J004033.06+404303.1912 [113] Andromeda Galaxy L/Teff
LGGS J004357.15+411136.6911 [113] Andromeda Galaxy L/Teff
LGGS J004406.60+411536.6911 [113] Andromeda Galaxy L/Teff
LGGS J013312.38+302453.2911 [113] –952 [128] Triangulum Galaxy L/Teff
LGGS J004451.76+420006.0911 [113] Andromeda Galaxy L/Teff
LGGS J013322.82+301910.9934 [113] –911 [128] Triangulum Galaxy L/Teff
LGGS J013355.56+304120.9908 [113] Triangulum Galaxy L/Teff
LGGS J004034.40+403627.4907 [113] Andromeda Galaxy L/Teff
LGGS J003910.56+402545.6906 [113] Andromeda Galaxy L/Teff
LGGS J004142.43+411814.1906 [113] Andromeda Galaxy L/Teff
LGGS J013316.57+303051.9902 [113] Triangulum Galaxy L/Teff
LGGS J013245.59+303518.7900 [113] Triangulum Galaxy L/Teff
LGGS J004034.67+404322.5898 [113] Andromeda Galaxy L/Teff
LGGS J004027.65+405126.7898 [113] Andromeda Galaxy L/Teff
LGGS J004322.75+411101.8895 [113] Andromeda Galaxy L/Teff
LGGS J004116.47+410813.7895 [113] Andromeda Galaxy L/Teff
LGGS J013306.33+303208.2894 [113] Triangulum Galaxy L/Teff
LGGS J004039.12+404252.3894 [113] Andromeda Galaxy L/Teff
LGGS J004433.96+415414.8893 [113] Andromeda Galaxy L/Teff
LGGS J013454.31+304109.8891 [128] Triangulum Galaxy L/Teff
LGGS J004030.64+404246.2890 [113] Andromeda Galaxy L/Teff
LGGS J004252.67+413615.2889 [113] Andromeda Galaxy L/Teff
LGGS J013349.94+302928.8888 [113] Triangulum Galaxy L/Teff
2MASS J01335010+3039106886 [113] Triangulum Galaxy L/Teff
LGGS J013357.37+304558.7886 [113] Triangulum Galaxy L/Teff
LGGS J013338.77+303532.9885 [113] Triangulum Galaxy L/Teff
LGGS J013359.20+303212.1884 [113] Triangulum Galaxy L/Teff
LGGS J013340.42+303131.3880 [113] Triangulum Galaxy L/Teff
LGGS J004511.40+413717.8880 [113] Andromeda Galaxy L/Teff
LGGS J013352.16+303902.2880 [113] Triangulum Galaxy L/Teff
LGGS J004219.25+405116.4880 [113] Andromeda Galaxy L/Teff
LGGS J004331.90+411145.0880 [113] Andromeda Galaxy L/Teff
2MASS J01333718+3038206879 [113] Triangulum Galaxy L/Teff
LGGS J013415.42+302816.4876 [113] Triangulum Galaxy L/Teff
LGGS J013345.01+302105.1876 [113] Triangulum Galaxy L/Teff
LGGS J004107.23+411636.8870 [113] Andromeda Galaxy L/Teff
LGGS J013417.83+303356.0867 [113] Triangulum Galaxy L/Teff
LGGS J004120.25+403838.1867 [113] Andromeda Galaxy L/Teff
LGGS J004402.38+412114.9866 [113] Andromeda Galaxy L/Teff
2MASS J01334194+3038565866 [113] Triangulum Galaxy L/Teff
LGGS J013309.10+303017.8865 [113] –933 [128] Triangulum Galaxy L/Teff
LGGS J004429.36+412307.8862 [113] Andromeda Galaxy L/Teff
LGGS J013310.20+303314.4861 [113] Triangulum Galaxy L/Teff
LGGS J004404.60+412729.8860 [113] Andromeda Galaxy L/Teff
LGGS J003907.69+402859.5860 [113] Andromeda Galaxy L/Teff
LGGS J004219.64+412736.1859 [113] Andromeda Galaxy L/Teff
LGGS J003949.31+402049.1859 [113] Andromeda Galaxy L/Teff
LGGS J013310.16+302726.3855 [113] Triangulum Galaxy L/Teff
LGGS J004036.97+403412.4855 [113] Andromeda Galaxy L/Teff
LGGS J013343.68+304450.7855 [113] Triangulum Galaxy L/Teff
LGGS J013409.10+303351.8854 [113] Triangulum Galaxy L/Teff
LGGS J013407.11+303918.7854 [113] Triangulum Galaxy L/Teff
LGGS J004107.11+411635.6854 [113] Andromeda Galaxy L/Teff
LGGS J013400.01+304622.2852 [113] Triangulum Galaxy L/Teff
LGGS J013327.14+303917.4851 [113] Andromeda Galaxy L/Teff
LGGS J013339.79+304032.2850 [113] Triangulum Galaxy L/Teff
LGGS J004501.30+413922.5850 [113] Andromeda Galaxy L/Teff
LGGS J004450.87+412924.3850 [113] Andromeda Galaxy L/Teff
LGGS J004040.69+405908.1850 [113] Andromeda Galaxy L/Teff
LGGS J003942.92+402051.1850 [113] Andromeda Galaxy L/Teff
2MASS J01335092+3040481850 [113] Triangulum Galaxy L/Teff
LGGS J013315.19+305319.8847 [113] Triangulum Galaxy L/Teff
LGGS J013416.89+305158.3845 [113] –920 [128] Triangulum Galaxy L/Teff
LGGS J004415.17+415640.6845 [113] Andromeda Galaxy L/Teff
LGGS J004424.94+412322.3844 [113] Andromeda Galaxy L/Teff
LGGS J013331.93+301952.9838 [113] Triangulum Galaxy L/Teff
LGGS J004406.16+414846.4836 [113] Andromeda Galaxy L/Teff
LGGS J013445.65+303235.4835 [113] Triangulum Galaxy L/Teff
LGGS J004109.39+404901.9834 [113] Andromeda Galaxy L/Teff
LGGS J004423.83+414928.6833 [113] Andromeda Galaxy L/Teff
LGGS J013242.31+302113.9833 [128] Triangulum Galaxy L/Teff
LGGS J004030.48+404051.1833 [113] Andromeda Galaxy L/Teff
LGGS J004118.29+404940.3832 [113] Andromeda Galaxy L/Teff
LGGS J013414.17+304701.9831 [113] Triangulum Galaxy L/Teff
LGGS J013328.89+303058.0831 [113] Triangulum Galaxy L/Teff
LGGS J004107.70+403702.3831 [113] Andromeda Galaxy L/Teff
LGGS J003925.67+404111.8831 [113] Andromeda Galaxy L/Teff
LGGS J004306.95+410038.2826 [113] Andromeda Galaxy L/Teff
LGGS J013408.81+304637.8826 [113] Triangulum Galaxy L/Teff
LGGS J013345.22+303138.2826 [113] Triangulum Galaxy L/Teff
LGGS J003950.65+402531.8825 [113] Andromeda Galaxy L/Teff
LGGS J013427.65+305642.4825 [128] Triangulum Galaxy L/Teff
LGGS J013500.04+303703.8823 [113] Triangulum Galaxy L/Teff
LGGS J004108.42+410655.3822 [113] Andromeda Galaxy L/Teff
LGGS J013340.77+302108.7821 [113] –820 [128] Triangulum Galaxy L/Teff
LGGS J004458.57+412925.1821 [113] Andromeda Galaxy L/Teff
LGGS J013309.97+302727.5973 [113] Triangulum Galaxy L/Teff
LGGS J004124.81+411206.1819 [113] Andromeda Galaxy L/Teff
LGGS J013401.65+303128.7819 [113] Triangulum Galaxy L/Teff
LGGS J013455.65+304349.0816 [113] Triangulum Galaxy L/Teff
LGGS J013310.60+302301.8816 [113] Triangulum Galaxy L/Teff
LGGS J004544.71+414331.9815 [113] Andromeda Galaxy L/Teff
LGGS J004119.35+410836.4813 [113] Andromeda Galaxy L/Teff
LGGS J013436.65+304517.1814 [113] –812 [128] Triangulum Galaxy L/Teff
LGGS J013301.79+303954.3812 [113] Triangulum Galaxy L/Teff
LGGS J013328.85+310041.7810 [113] –909 [128] Triangulum Galaxy L/Teff
LGGS J013401.08+303432.2809 [113] Triangulum Galaxy L/Teff
LGGS J004036.45+403613.1808 [113] Andromeda Galaxy L/Teff
LGGS J004521.53+413758.6807 [113] Andromeda Galaxy L/Teff
LGGS J004432.38+415149.9807 [113] Andromeda Galaxy L/Teff
LGGS J013306.95+303506.1807 [128] Triangulum Galaxy L/TeffContradictory classification in literature, it has been considered a candidate LBV, a RSG or a BSG.
LGGS J013242.26+302114.1807 [113] Triangulum Galaxy L/Teff
LGGS J013321.94+304112.0806 [113] –829 [128] Triangulum Galaxy L/Teff
LGGS J013304.56+303043.2804 [113] Triangulum Galaxy L/Teff
LGGS J004331.73+414223.0803 [113] Andromeda Galaxy L/Teff
LGGS J004044.17+410729.0803 [113] Andromeda Galaxy L/Teff
LGGS J013352.83+305605.2803 [113] Triangulum Galaxy L/Teff
LGGS J013343.30+303318.9873 [113] –803 [128] Triangulum Galaxy L/Teff
LGGS J013342.61+303534.7800 [113] Triangulum Galaxy L/Teff
LGGS J013326.90+310054.2800 [113] –909 [128] Triangulum Galaxy L/Teff
LGGS J013300.94+303404.3798 [113] Triangulum Galaxy L/Teff
LGGS J013416.06+303730.0798 [113] Triangulum Galaxy L/Teff
LGGS J004503.83+413737.0797 [113] Andromeda Galaxy L/Teff
LGGS J004503.83+413737.0797 [113] Andromeda Galaxy L/Teff
LGGS J004438.83+415253.0794 [113] Andromeda Galaxy L/Teff
LGGS J004235.88+405442.2794 [113] Andromeda Galaxy L/Teff
LGGS J004335.28+410959.7794 [113] Andromeda Galaxy L/Teff
LGGS J013402.32+303828.4793 [113] Triangulum Galaxy L/Teff
LGGS J004125.55+405034.8792 [113] Andromeda Galaxy L/Teff
LGGS J013507.43+304132.6791 [113] Triangulum Galaxy L/Teff
LGGS J013353.25+303918.7791 [113] Triangulum Galaxy L/Teff
LGGS J004308.71+410604.5790 [113] Andromeda Galaxy L/Teff
LGGS J013417.17+304826.6789 [113] Triangulum Galaxy L/Teff
LGGS J013310.71+302714.9789 [113] –884 [128] Triangulum Galaxy L/Teff
LGGS J013432.36+304159.0788 [113] Triangulum Galaxy L/Teff
LGGS J004356.23+414641.8788 [113] Andromeda Galaxy L/Teff
LGGS J013340.77+302108.7788 [113] Triangulum Galaxy L/Teff
LGGS J013346.61+304125.4786 [113] Triangulum Galaxy L/Teff
LGGS J004447.08+412801.7785 [113] Andromeda Galaxy L/Teff
LGGS J004255.95+404857.5785 [129] Andromeda Galaxy L/Teff
LGGS J013231.91+302329.1783 [113] Triangulum Galaxy L/Teff
LGGS J004110.32+410433.4782 [113] Andromeda Galaxy L/Teff
LGGS J004159.06+405718.7780 [113] Andromeda Galaxy L/Teff
LGGS J004241.10+413142.3775 [113] Andromeda Galaxy L/Teff
LGGS J013401.88+303858.3776 [128] Triangulum Galaxy L/Teff
LGGS J013445.12+305858.9773 [113] Triangulum Galaxy L/Teff
LGGS J004030.92+404329.3773 [113] Andromeda Galaxy L/Teff
LGGS J013359.57+303413.5771 [113] Triangulum Galaxy L/Teff
LGGS J004353.97+411255.6771 [113] Andromeda Galaxy L/Teff
LGGS J004029.03+403412.6770 [113] Andromeda Galaxy L/Teff
LGGS J004526.24+420047.5767 [113] Andromeda Galaxy L/Teff
LGGS J013348.44+302029.8767 [113] Triangulum Galaxy L/Teff
LGGS J004552.15+421003.5767 [113] Andromeda Galaxy L/Teff
LGGS J013320.75+303204.8764 [113] Triangulum Galaxy L/Teff
LGGS J013416.28+303353.5763 [113] –801 [128] Triangulum Galaxy L/Teff
LGGS J013357.91+303338.9763 [113] Triangulum Galaxy L/Teff
LGGS J013253.14+303515.3762 [113] Triangulum Galaxy L/Teff
LGGS J004051.18+403053.4762 [113] Andromeda Galaxy L/Teff
LGGS J013402.57+303746.3762 [113] Triangulum Galaxy L/Teff
LGGS J013352.15+304006.4762 [113] Triangulum Galaxy L/Teff
LGGS J004427.07+415203.0762 [113] Andromeda Galaxy L/Teff
LGGS J004233.23+405917.0762 [113] Andromeda Galaxy L/Teff
LGGS J004156.96+405720.8761 [113] Andromeda Galaxy L/Teff
LGGS J004117.14+410843.7761 [113] Andromeda Galaxy L/Teff
LGGS J004109.61+404920.4761 [113] Andromeda Galaxy L/Teff
LGGS J003930.09+402313.0759 [113] Andromeda Galaxy L/Teff
LGGS J013324.71+303423.7758 [113] Triangulum Galaxy L/Teff
LGGS J013317.40+303210.8758 [113] Triangulum Galaxy L/Teff
LGGS J013411.83+304631.0756 [113] Triangulum Galaxy L/Teff
LGGS J004417.75+420039.1755 [113] Andromeda Galaxy L/Teff
LGGS J004454.50+413007.8755 [113] Andromeda Galaxy L/Teff
LGGS J013348.77+304526.8754 [113] Triangulum Galaxy L/Teff
LGGS J004019.69+404912.2754 [113] Andromeda Galaxy L/Teff
LGGS J004340.32+411157.1753 [113] Andromeda Galaxy L/Teff
LGGS J013304.02+303215.2753 [113] Triangulum Galaxy L/Teff
LGGS J013409.16+303846.9752 [113] Triangulum Galaxy L/Teff
LGGS J013459.81+304156.9751 [113] –765 [128] Triangulum Galaxy L/Teff
LGGS J013334.82+302029.1751 [113] –930 [128] Triangulum Galaxy L/Teff
LGGS J013400.71+303422.3750 [113] Triangulum Galaxy L/Teff
LGGS J004224.65+412623.7749 [113] Andromeda Galaxy L/Teff
LGGS J013414.88+303401.2749 [113] Triangulum Galaxy L/Teff
LGGS J004343.33+414529.5749 [113] Andromeda Galaxy L/Teff
LGGS J004034.76+403648.9749 [113] Andromeda Galaxy L/Teff
LGGS J013353.53+303418.7749 [113] Triangulum Galaxy L/Teff
LGGS J004501.84+420259.2747 [113] Andromeda Galaxy L/Teff
LGGS J013409.70+303916.2744 [113] Triangulum Galaxy L/Teff
LGGS J013345.71+303609.8744 [113] Triangulum Galaxy L/Teff
LGGS J004342.75+411442.8743 [113] Andromeda Galaxy L/Teff
LGGS J013333.32+303147.2741 [113] Triangulum Galaxy L/Teff
LGGS J013338.97+303506.1741 [113] Triangulum Galaxy L/Teff
LGGS J013303.61+302841.5741 [113] Triangulum Galaxy L/Teff
LGGS J004201.12+412516.0737 [113] Andromeda Galaxy L/Teff
LGGS J004341.35+411213.8734 [113] Andromeda Galaxy L/Teff
LGGS J013438.76+304608.1734 [113] Triangulum Galaxy L/Teff
LGGS J013402.33+301749.2734 [113] –786 [128] Triangulum Galaxy L/Teff
2MASS J01334180+3040207732 [113] Triangulum Galaxy L/Teff
LGGS J013354.32+301724.6732 [113] –854 [128] Triangulum Galaxy L/Teff
LGGS J013334.23+303400.3732 [113] Triangulum Galaxy L/Teff
LGGS J013357.60+304113.3730 [113] Triangulum Galaxy L/Teff
LGGS J004614.57+421117.4730 [113] Andromeda Galaxy L/Teff
LGGS J004120.96+404125.3730 [113] Andromeda Galaxy L/Teff
LGGS J004228.46+405519.0728 [113] Andromeda Galaxy L/Teff
LGGS J004024.52+404444.8728 [113] Andromeda Galaxy L/Teff
LGGS J013349.75+304459.8727 [113] Triangulum Galaxy L/Teff
LGGS J013306.88+303004.6727 [113] Triangulum Galaxy L/Teff
LGGS J004358.00+412114.1727 [113] Andromeda Galaxy L/Teff
LGGS J004147.27+411537.8727 [113] Andromeda Galaxy L/Teff
LGGS J013407.23+304158.8725 [113] –833 [128] Triangulum Galaxy L/Teff
LGGS J004519.82+415531.9725 [113] Andromeda Galaxy L/Teff
LGGS J004410.84+411538.8725 [113] Andromeda Galaxy L/Teff
LGGS J013407.38+305935.0724 [113] Triangulum Galaxy L/Teff
LGGS J004438.75+415553.6724 [113] Andromeda Galaxy L/Teff
LGGS J004324.16+411228.3723 [113] Andromeda Galaxy L/Teff
LGGS J004059.58+403815.6723 [113] Andromeda Galaxy L/Teff
LGGS J013327.40+304126.4721 [113] Triangulum Galaxy L/Teff
LGGS J013243.72+301912.5721 [113] –783 [128] Triangulum Galaxy L/Teff
Gaia DR3 303379932695513216720 [113] Triangulum Galaxy L/Teff
LGGS J004558.92+414642.1720 [113] Andromeda Galaxy L/Teff
LGGS J004103.46+403633.2717 [113] Andromeda Galaxy L/Teff
LGGS J013324.89+301754.3717 [113] Triangulum Galaxy L/Teff
LGGS J004015.18+405947.7716 [113] Andromeda Galaxy L/Teff
LGGS J013414.53+303557.7715 [113] Triangulum Galaxy L/Teff
LGGS J013351.89+303853.5715 [113] Triangulum Galaxy L/Teff
LGGS J004458.82+413050.4715 [113] Andromeda Galaxy L/Teff
LGGS J013352.51+303942.2715 [113] Triangulum Galaxy L/Teff
LGGS J004124.91+411133.1715 [113] Andromeda Galaxy L/Teff
LGGS J004604.18+415135.4713 [113] Andromeda Galaxy L/Teff
LGGS J013305.17+303119.8711 [113] Triangulum Galaxy L/Teff
LGGS J004517.25+413948.2711 [113] Andromeda Galaxy L/Teff
LGGS J013349.86+303246.1710 [130] –795 [128] Triangulum Galaxy L/TeffA yellow supergiant.
2MASS J01335929+3034435709 [113] Triangulum Galaxy L/Teff
LGGS J004230.32+405624.1708 [113] Andromeda Galaxy L/Teff
LGGS J004101.02+403506.1708 [113] Andromeda Galaxy L/Teff
LGGS J004119.21+411237.2707 [113] Andromeda Galaxy L/Teff
LGGS J004606.25+415018.9707 [113] Andromeda Galaxy L/Teff
LGGS J013442.05+304540.2707 [113] –707 [128] Triangulum Galaxy L/Teff
LGGS J013431.84+302721.5707 [113] –717 [128] Triangulum Galaxy L/Teff
LGGS J013304.68+304456.0707 [113] –739 [128] Triangulum Galaxy L/Teff
LGGS J004432.27+415158.4705 [113] Andromeda Galaxy L/Teff
2MASS J01335131+3039149704 [113] Triangulum Galaxy L/Teff
LGGS J013339.46+302113.0703 [113] –748 [128] Triangulum Galaxy L/Teff
LGGS J003935.36+401946.4703 [113] Andromeda Galaxy L/Teff
LGGS J013343.03+303433.5702 [113] Triangulum Galaxy L/Teff
LGGS J004505.87+413452.3702 [113] Andromeda Galaxy L/Teff
LGGS J013414.18+305248.0701 [113] –731 [128] Triangulum Galaxy L/Teff
LGGS J013402.53+304107.7701 [113] –749 [128] Triangulum Galaxy L/Teff
LGGS J013340.80+304248.5701 [113] –814 [128] Triangulum Galaxy L/Teff
LGGS J013312.59+303252.5701 [113] Triangulum Galaxy L/Teff
The following well-known stars are listed for the purpose of comparison.
Var 83 150 [131] Triangulum Galaxy L/TeffA luminous blue variable and one of the most luminous stars in M33.

Other galaxies (within the Local Group)

List of the largest known stars in other galaxies (within the Local Group)
Star name Solar radii
(Sun = 1)		GalaxyMethod [lower-alpha 1] Notes
WOH G64 (For comparison)1540 [9] [10] [11] [12] [13] ± 77 [9] Large Magellanic CloudL/TeffLocated in the Large Magellanic Cloud.

Possibly the largest known star. [9] [10] [14] [11]

Sextans A 10995±130 [132] Sextans AL/Teff
WLM 02 883+284
−167 [133] 		WLML/Teff
Sextans A 5870±145 [132] Sextans AL/Teff
LeoA 7 785 [134] Leo AL/Teff
Sextans A 7710±100 [132] Sextans AL/Teff

Outside the Local Group

Note that this list doesn't include the candidate JWST dark stars, with estimated radii of up to 61 astronomical units (13,000 R☉) [135] or Quasi-stars, with theoretical models suggesting that they could reach radii of up to 40,700 solar radii (189 au). [136]

List of the largest known stars in galaxies outside the Local Group
Star name Solar radii
(Sun = 1)		GalaxyGroupMethod [lower-alpha 1] Notes
WOH G64 (For comparison)1540 [9] [10] [11] [12] [13] ± 77 [9] Large Magellanic CloudL/TeffLocated in the Large Magellanic Cloud.

Possibly the largest known star. [9] [10] [14] [11]

NGC 2403 V14 1,260 [137] NGC 2403 M81 Group L/Teff
SPIRITS 14atl 1,134–1,477 [138] Messier 83 Centaurus A/M83 Group L/Teff
SPIRITS 15ahp 1,098 [138] NGC 2403 M81 Group L/Teff
Quyllur 965 [139] L/TeffLikely the first red supergiant star at cosmological distances and is also discovered by James Webb Space Telescope.
M81 10584-25-2 851 [137] Messier 81 M81 Group L/Teff
M81 10584-13-3 843 [137] Messier 81 M81 Group L/Teff
[GKE2015] 7 729 [140] NGC 300 NGC 55 Group L/Teff
The following well-known stars are listed for the purpose of comparison.
Godzilla 430–2,365 [141] Sunburst galaxy L/TeffThe most luminous known star. [142]
Mothra 271 [143] L/TeffA binary star at cosmological distances.
NGC 2363-V1 194–356 [144] NGC 2366 M81 Group L/Teff

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)		YearGalaxyGroupMethodNotes
AT 2017jfs 33,000 [145] 2017 NGC 4470 L/Teff
SNhunt151 16,700 [146] 2014 UGC 3165 LDC 331 L/Teff
SN 2015bh 16,400±2,600 [147] 2015 NGC 2770 LDC 616 L/Teff
AT 2018hso 10,350 [148] 2018 NGC 3729 M109 Group L/Teff
M51 OT2019-1 5,500 [149] 2019 Whirlpool Galaxy M51 Group L/Teff
η Carinae 4,319 – 6,032 [95] 1845 Milky Way Local Group L/TeffDuring the outburst, the star became the second brightest star in sky, reaching an apparent magnitude of between -0.8 and -1.0. [150]
AT 2010dn 4,130 [151] 2010 NGC 3180 LDC 743 L/Teff
SN 2011fh 3,980 [152] 2011 NGC 4806 Abell 3528 L/Teff
AT 2014ej 3,600 [153] 2014 NGC 7552 Grus Quartet L/Teff
V838 Monocerotis 3,190 [86] 2002 Milky Way Local Group L/Teff
SN2008S 3,020 [151] 2008 NGC 6946 NGC 6946 Group L/Teff
SNhunt120 2,900 [154] [153] 2012 NGC 5775 Virgo Cluster L/Teff
AT 2017be 2,000 [155] 2017 NGC 2537 L/Teff
WOH G64 (For comparison)1540 [9] [10] [11] [12] [13] ± 77 [9] Large Magellanic CloudL/TeffLocated in the Large Magellanic Cloud.

Possibly the largest known star. [9] [10] [14] [11]

PHL 293B star1,348 – 1,463 [156] 2002 PHL 293B L/Teff
SNhunt248 ~850 [157] 2014 NGC 5806 NGC 5846 Group L/Teff
R71 500 [158] 2012 Large Magellanic Cloud Local GroupL/Teff
SN 2000ch 500 [159] 2000 NGC 3432 LDC 743 L/Teff
Godzilla 430 – 2,365 [141] 2015 Sunburst galaxy ?
AT 2016blu ~330 [160] 2012 –2022 NGC 4559 Coma I Group L/Teff19 outbursts were detected between 2012 and 2022. The star was likely relatively stable the decade before since no outbursts were detected from 1999 –2009. [160]

SN Progenitors

List of largest supernova progenitors
Star or supernova name Solar radii
(Sun = 1)		YearGalaxyGroupMethodNotes
SN 2020faa 1,000 [161] 20202MASS J14470904+7244157L/Teff
SN 2023ixf 912+227
−222 [162] –1,060±30 [163] 		2023 Pinwheel galaxy M101 Group L/Teff
SN 2020jfo 700±10 [164] 2020 Messier 61 Virgo Cluster L/Teff
SN 2023axu 417±28 [165] 2023 NGC 2283 L/Teff
SN 2021agco 78.37+25.59
−19.94 [166] 		2021 UGC 3855 LDC 506L/TeffNearest ultrastripped supernova known.

See also

Notes

  1. 1 2 3 4 5 Methods for calculating the radius:
  2. 1 2 3 4 5 6 At the J2000 epoch

Related Research Articles

Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun. The solar radius is usually defined as the radius to the layer in the Sun's photosphere where the optical depth equals 2/3:

HD 115337 is a binary star located in the northern circumpolar constellation Camelopardalis. The pair have a combined apparent magnitude of 6.25, placing it near the limit for naked eye visibility. Parallax measurements place the system at a distance of 698 light years. It has a heliocentric radial velocity of −9.4 km/s, indicating that it is drifting towards the Solar System.

<span class="mw-page-title-main">TZ Cassiopeiae</span> Star in the constellation Cassiopeia

TZ Cassiopeiae(TZ Cas, HIP 117763, SAO 20912) is a variable star in the constellation Cassiopeia with an apparent magnitude of around +9 to +10. It is approximately 8,400 light-years away from Earth. The star is a red supergiant star with a spectral type of M3 and a temperature around 3,600 K.

<span class="mw-page-title-main">PZ Cassiopeiae</span> Star in the constellation Cassiopeia

PZ Cassiopeiae is a red supergiant star located in the constellation of Cassiopeia, and a semi-regular variable star.

<span class="mw-page-title-main">SMC 018136</span> Star in the Small Magellanic Cloud in the constellation Tucana

SMC 018136, also known as PMMR 37, is a red supergiant star located in the Small Magellanic Cloud. It is one of the largest stars and one of the most luminous SMC cool supergiants so far discovered, with a radius of 945 times that of the sun and a bolometric luminosity almost 200,000 times more than Sun. If it were in the place of the Sun, its photosphere would at least engulf the orbit of Mars.

<span class="mw-page-title-main">HV 888</span> Star in the constellation Dorado

HV 888, also known as WOH S140, is a red supergiant (RSG) star located in the Large Magellanic Cloud. It is possibly among the largest known stars, with reliable estimates of its radius ranging from 1,353 R☉ to 1,584 R☉, and is also one of the most luminous of its type with a range of nearly 300,000 to over 500,000 times that of the Sun (L☉). The effective temperature is estimated to be around 3,500 K. If placed at the center of the Solar System, its photosphere would engulf the orbit of Jupiter.

<span class="mw-page-title-main">HD 26764</span> Star in the constellation Camelopardalis

HD 26764, also known as HR 1314 or rarely 14 H. Camelopardalis, is a solitary white hued star located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.19, making it faintly to the naked eye if viewed under good conditions. Gaia DR3 parallax measurements place the object at a distance of 266 light years and is drifting closer with a poorly constrained heliocentric radial velocity of 3 km/s. At its current distance, HD 26764's brightness is diminished by 0.26 magnitudes due to interstellar dust.

<span class="mw-page-title-main">V1936 Aquilae</span> Blue supergiant star in the constellation Aquila

V1936 Aquilae is a blue supergiant and candidate Luminous blue variable located in the nebula Westerhout 51, in the constellation Aquila, about 20,000 light years away. The star was originally identified as a massive star in 2000, and was thought to be an O-type supergiant. However, subsequent analyses have shown it to be not O but B-type, as well as being possibly an LBV.

HD 194012 is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.15, making it visible to the naked eye under ideal conditions. The star is relatively close at a distance of only 85 light years but is receding with a heliocentric radial velocity of 4.5 km/s.

HD 193556 is a solitary star in the equatorial constellation Delphinus. It has an apparent magnitude of 6.17, making it visible to the naked eye under ideal conditions. Parallax measurements place the object at a distance of 467 light years and it is currently receding with a heliocentric radial velocity of 11.7 km/s.

HD 58425, also known as HR 2830, is an astrometric binary located in the northern circumpolar constellation Camelopardalis. It is faintly visible to the naked eye as an orang point of light at an apparent magnitude of 5.64. Based on parallax measurements from Gaia DR3, the system is estimated to be 470 light years away from Earth. It appears to be rapidly receding from the Sun, having a heliocentric radial velocity of 58.6 km/s. HD 58425 is listed as 54 Ursae Majoris in Johann Hevelius' catalogue, but this was dropped after the official IAU's official constellation borders were drawn.

HD 34255, also known HR 1720, is a star located in the northern circumpolar constellation Camelopardalis, the giraffe. It has an apparent magnitude of 5.60, allowing it to be faintly visible to the naked eye. The object is located relatively far at a distance of about 1.65 kly but is approaching the Solar System with a heliocentric radial velocity of −7.7 km/s.

<span class="mw-page-title-main">B324</span> Star in the Triangulum Galaxy

B324 is a yellow hypergiant in the Triangulum Galaxy, located near the giant H II region IC 142 around 2.7 million light years away. It is the brightest star in the Triangulum Galaxy in terms of apparent magnitude.

References

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