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Stop icon This is a mock page. Please do not use this for reference. Joey P. - THE OFFICIAL (talk) 04:20, 6 July 2017 (UTC)

This is a list of largest objects in the universe. Black holes, nebulae and galaxies are not included, but to give you a perspective of how big things can get, here is a reference point:

IC 1101, the largest known galaxy, is 5,800,000 light years in diameter.

NGC 604, the largest known nebula, is 1,604 light years in diameter.

S5 0014+81, the most massive black hole known, is 40 billion solar masses which is equal to 1,582 astronomical units.



List

List of the largest objects in the universe
Star name Solar diameter
(Sun = 1) 		Notes
Madeline Fenton 2,208.5 Danny Fenton's mom is larger than NML Cygni. In fact, she is larger than our supercluster, larger than the visible universe. I am surprised Danny's mother is not an elemental force unlike Gravity, the weak and strong interaction. A Neutron Star is millions of times less dense as Danny's mother, in fact her higgs field resembles a crowded pool table, and gravity is only the third dimensional effect of her eleven dimensional mass.
VY Canis Majoris 2,100 Humphreys et al originally estimated the radius of VY CMa to be at 1,800–2,100 solar radii; a size so large that places it outside the bounds of stellar evolutionary theory. The quoted size is based on an improved measurement by Wittowski et al. Another study by Massey, Levesque, and Plez concludes that the star has a radius around 600 solar radii.[1]
VV Cephei A 1,900 VV Cep A is a highly distorted star in a close binary system, losing mass to the secondary for at least part of its orbit.
UY Scuti 1,708 ± 192 [2]
NML Cygni 1,650 ± 467[3][4]
V838 Monocerotis 380-1,570 ± 400 [5] The very large cool "L supergiant" reported with this radius was a transient object that shrunk about four-fold over a few years. 380 solar radii as of 2009.[6]
WOH G64 1,540[7] This would be the largest star in the LMC, but is unusual in position and motion and might still be a foreground halo giant.
VX Sagittarii 1,520[8] VX Sgr is a pulsating variable with a large visual range and varies significantly in size.
KW Sagittarii 1,009-1,460[9]
KY Cygni 1,420–2,850 [9] The upper estimate is due to an unusual K band measurement and thought to be an artifact of a reddening correction error. The lower estimate is consistent with other stars in the same survey and with theoretical models.
Westerlund 1-26 1,951–2,544 [10][11][12] (possibly 1,530) Very uncertain parameters for an unusual star with strong radio emission. The spectrum is variable but apparently the luminosity is not.
HR 5171 A 1,315-1,490[13] Also known as V766 Cen A. HR 5171 is a highly distorted star in a close binary system, losing mass to the secondary. According to Chesneau et al; it may be the largest star of its type (yellow hypergiant), but may be of early K-type class.
RW Cephei 1,260–1,610 [citation needed] RW Cep is variable both in brightness (by at least a factor of 3) and spectral type (observed from G8 to M), thus probably also in diameter. Because the spectral type and temperature at maximum luminosity are not known, the quoted sizes are just estimates.
PZ Cassiopeiae 1,190-1,940[9] The upper estimate is due to an unusual K band measurement and thought to be an artifact of a reddening correction error. The lower estimate is consistent with other stars in the same survey and with theoretical models.
Mu Cephei (Herschel's "Garnet Star") 650[14]-1,420[9]
BI Cygni 916[8]-1,240[9]
V354 Cephei 690[8]-1,520[9] Also known as Case 75.
S Persei 780-1,230[9] In the Perseus Double Cluster
Betelgeuse (Alpha Orionis) 1,180
BC Cygni 1,140[9]
RT Carinae 1,090[9]
V396 Centauri 1,070[9]
CK Carinae 1,060[9]
V1749 Cygni 620-1,040[9]
RS Persei 1,000[9] In the Perseus Double Cluster
U Lacertae 1,025[citation needed]
NR Vulpeculae 980[9]
RW Cygni 980[9]
Theta Muscae Ac 900 [citation needed] The quoted size is due to several claims and requires citation. Even though it is lightest star in the Theta Muscae system, it is ironically the largest star in the system.
Antares (Alpha Scorpii) 883
V602 Carinae 860[9]
TZ Cassiopeiae 800[9]
IX Carinae 790[9]
SU Persei 780[9] In the Perseus Double Cluster
V355 Cepheus 300[8]-770[9]
V382 Carinae 747
TV Geminorum 620-770[9]
The following well-known stars are listed for the purpose of comparison.
CE Tauri ("Ruby Star")[15] 608
S Pegasi 580[16]
W Hydrae 562[17]
T Cephei 540[18]
S Orionis 530[19]
R Cassiopeiae 500[20]
R Leporis 500
R Andromedae 485 ± 125
Chi Cygni 470[21]
Alpha Herculis (Ras Algethi) 460
R Hydrae 460
Rho Cassiopeiae 450
Mira A (Omicron Ceti) 400
V509 Cassiopeiae 400[22]–900[23]
S Doradus 100–380[24]
U Orionis 370±96
R Doradus 370
HR Carinae 350
R Leonis 350[25]
V337 Carinae 350
The Pistol Star 346
S Coronae Borealis 340
V381 Cephei 327
Pi Puppis 290
Psi1 Aurigae 271
CW Leonis 250
Cygnus OB2-12 246
Omicron1 Canis Majoris 231
Deneb (Alpha Cygni) 220
La Superba (Y Canum Venaticorum) 215
Delta Canis Majoris (Wezen) 215±66[26]
V810 Centauri 210
Zeta Aurigae (Haedus) 200[27]
Delta2 Lyrae 200
Lambda Velorum (Al Suhail) 200
RS Puppis 200
Eta Carinae (Tseen She) 85–195[28] Previously thought to be the most massive single star, but in 2005 it was realised to be a binary system
Epsilon Pegasi (Enif) 185
L Carinae 179
6 Cassiopeiae 170
Rho Persei (Gorgonea Tertia) 164
Epsilon Carinae (Avior) 153
Gamma Cygni (Sadir) 150
LBV 1806-20 150
Epsilon Geminorum (Mebsuta) 150
Epsilon Aurigae A (Almaaz) 135
Mu Boötis (Alkalurops) 130
66 Andromedae 130
QS Aquilae 130
NO Aurigae 130
56 Aquilae 130
L Puppis 126
Iota Scorpii (Apollyon) 125
Delta Apodis 125
HIP 110307 124.1
32 G. Hydrae 121.7
I Carinae 120
Xi Puppis (Asmidiske) 120
Mu Sagittarii (Polis) 115
Omicron Cygni 115
Zeta Cephei 110
Gamma Aquilae (Tarazed) 110
34 Boötis 110
Beta Arae 110
Alpha Trianguli Australis (Atria) 109
Peony Nebula Star 100
Beta Pegasi (Scheat) 95
17 Camelopardalis 91.3
Beta Andromedae (Mirach) 90
R Scuti 87.4
WR 102ea 86
Nu Cephei 83.5
Gamma Crucis (Gacrux) 83
Gamma Andromedae (Almach) 83
Theta Herculis (Rukbalgethi Genubi) 80
Var 83 80
Rigel (Beta Orionis) 78
Alpha Leporis (Arneb) 77
P Cygni 77
Beta Doradus 76
DL Crucis 75-80
Pi Herculis 72
13 Boötis 71
Beta Cygni A1 (Albireo) 70
62 Sagittarii 70
Nu Aquilae (Equator Star) 66
R Coronae Borealis 65
Canopus (Alpha Carinae) 65
Delta Virginis (Auva) 65
Delta Sagittarii (Kaus Media) 62
Alpha Persei (Mirfak) 60
Zeta Geminorum (Mekbuda) 60
Eta Aquilae (Bezek) 60
89 Herculis 60
Upsilon Sagittarii 60
Alpha Aquarii (Sadalmelik) 60
CPD -572874 60
Chi Orionis 59
Alpha Persei (Mirfak) 56
Iota Aurigae (Al Kab) 55
FF Aquilae 55
Alpha Apodis 55
Tau Serpentis 54
Beta Cancri (Tarf) 53
Alpha Antliae 53
Zeta¹ Scorpii 52
Alphard (Alpha Hydrae) 50.5
Gamma Draconis (Eltanin) 50
Beta Aquarii (Sadalsuud) 50
HD 5980 A 48-160
Epsilon Boötis (Izar) 48
Zeta² Scorpii 48
AG Antliae 47
V428 Andromedae 46.3
HD 13189 46
HD 203857 46
Aldebaran (Alpha Tauri) 44.2[29]
Polaris (Alpha Ursae Minoris) 43.9
Alpha Cassiopeiae (Schedar) 42
Alpha Ceti (Menkar) 42
Delta Cephei (Alrediph) 41.6
Beta Ursae Minoris (Kochab) 41
Beta Draconis (Rastaban) 40
BD Camelopardalis 40
HD 5980 B 40
Eta Canis Majoris (Aludra) 37.8
87 Leonis 37
Gamma Centauri (Muhlifan) 36.5
S Normae 35.6
R136a1 35.4 Also on record as the most massive and luminous star known.
Sher 25 35
Gamma Leonis (Algieba) 31.9
Alpha Camelopardalis 31.2
Alpha Ursae Majoris (Dubhe) 30
11 Lacertae 30
Beta Camelopardalis 30
Cygnus OB2-8 28
Eta Leonis (Al Jabhah) 27
R Apodis 26.3
Epsilon Orionis (Alnilam) 26
Eta Piscium (Kullat Nunu) 26
Melnick 42 26
Arcturus (Alpha Boötis) 25.7
HD 93129A 25
11 Ursae Minoris 24.1
HD 47536 23.5
Epsilon Leonis (Algenubi) 23
42 Draconis 22 ± 1
Alpha Reticuli 21
Chi Virginis 20.9
19 Cephei 20–30
HDE226868 20-22 The supergiant companion of Cygnus X-1
Zeta Orionis (Alnitak) 20
Theta Scorpii (Sargas) 20
Beta Herculis (Kornephoros) 20
Theta Apodis 20
Alpha Sagittae (Alsahm) 20
HR 2422 Monocerotis (Plaskett's Star) 19.2
Kappa Cassiopeiae 19
Beta Scorpii (Acrab) 19
Beta Lyrae (Sheliak) 19
Zeta Puppis (Naos) 18.6
R 122 18.5
HD 93250 18
Alpha Microscopii 17.5
LH45-425 A 17.5
Upsilon Hydrae 17.1
Beta Ceti (Deneb Kaitos) 17
Epsilon Canis Majoris (Adhara) 17
LY Aurigae 16
Theta Centauri (Menkent) 16
Beta Corvi (Kraz) 16
Delta Orionis A (Mintaka) 15.8
Nu Ophiuchi (Sinistra) 15.25
Alpha Arietis (Hamal) 15
Gamma Cassiopeiae (Tsih) 14
Beta Ophiuchi (Celbalrai) 13.2
37 Aquilae 13
HD 240210 13
Alpha Aurigae A (Capella A) 12.2
Xi Aquilae 12
Gamma Arae 12
Gamma Sagittarii (Alnasl) 11
LH45-425 B 10
VV Cephei B 10
Pollux 8
Sun (for comparison) 1 The largest body in the solar system.

Timeline of largest star recordholders

Star Size (R☉) Date Notes
Daniel Lorraine's ego 2.17 googol Currently the largest object in the universe. See above.
UY Scuti 1,708 ± 192[30] 2014— Margin of error in size determination: ± 192 solar radii. With its smallest value, its size would be similar to that of V354 Cephei. With its larger value, its size would be similar to that of the possible size of VV Cephei A.
Westerlund 1-26 1,951—2,544[31][32][33] 2013—2014 Very uncertain parameters for an unusual star with strong radio emission. The spectrum is variable but apparently the luminosity is not.
NML Cygni 1,650[34] 2012—2013 NML Cyg is a semiregular variable star surrounded by a circumstellar nebula and is heavily obscured by dust extinction.
VY Canis Majoris 1,800—2,100 2007—2012 Previously thought to be a star so large that it contradicted stellar evolutionary theory, a newly improved measurement has brought it down to size.
VV Cephei A 1,600[35]—1,900[36] [foot 1] 1998—2007 VV Cep A is a highly distorted star in a binary system, losing mass to its B-type companion VV Cephei B for at least part of its orbit.
Mu Cephei 1,420[9] 1970—1998 Also known as Herschel's Garnet Star.
Epsilon Aurigae 2,700-3,000 ........—1970 Epsilon Aurigae was incorrectly hailed as the largest known star before 1970, even though it later turned out not to be an 'infrared light star' but rather a dusk torus surrounding the system.

Relations between Solar radius and Orbital radius of planets

List of orbital radius of planets
Planet Astronomical unit
(AU = 1.49597870691 × 108km = 214.9 solar radii) 		Solar radii
(Sun = 695,742 km) 		Example stars
Mercury 0.31 - 0.47 66 - 100 Canopus (71) Rigel (78) Beta Cygni (109) Epsilon Aurigae (135-190)
Venus 0.72 - 0.73 154 - 157 Epsilon Pegasi (185)
Earth 0.98 - 1.02 211 - 219 Deneb (220) LBV 1806-20 (150–236) Alpha Herculis (264–303)
Mars 1.38 - 1.67 297 - 358 Chi Cygni (316) Pistol Star (346) Mira (400)
Inner limits of the Asteroid Belt 1.92 412 Eta Carinae (400) Rho Cassiopeiae (450) Chi Cygni (480) S Pegasi (580) V1749 Cygni (620-1,040) TZ Cassiopeiae (645) TV Geminorum (620-710) RW Cygni (680-980) V382 Carinae (747)
Outer limits of the Asteroid Belt 3.79 816 Antares (883) Betelgeuse (1,180) KW Sagittarii (1,009-1,460) Mu Cephei (650-1,420) HR 5171 (1,315-1,490) VV Cephei (1,050-1,900)
Jupiter 4.95 - 5.46 1,064 - 1,173 KY Cygni (1,420-2,850) VY Canis Majoris (1,420) WOH G64 (1,540) V838 Monocerotis (Lane et al estimate) (1,570) NML Cygni (1,650)
Saturn 9.02 - 10.08 1,800 UY Scuti (1,708)
Uranus 18.33 - 20.11 2,595 - 2,700 Westerlund 1-26 (upper estimate) (2,544)
Neptune 29.81 - 30.33 3,470 - 3,550
Pluto 29.658 - 49.305 3,700 - 3,824
Planet Nine (Also known as Nibiru) 200 - 1,200 200 - 10,700
The observable universe as seen from Earth Daniel Lorraine's ego (2.17 googol)
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