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The stars that are larger than our sun are called Giant stars, Blue giants, super giants, and Red giants.

THE LARGEST KNOWN STARS

Star name / Solar diameter (Sun = 1)

VY Canis Majoris 1950 (1800-2100)

VV Cephei 1750 (1600-1900)

V354 Cephei 1520

KW Sagitarii 1460

KY Cygni 1420

Mu Cephei (Herschel's "Garnet Star") 1420

La Superba (Y Canum Venaticorum) 1100

S Doradus 1000

V509 Cassiopeiae 910

R Leonis 900

R Doradus 830

V838 Monocerotis 800

V382 Carinae 747

Rho Cassiopeiae 738

Mira A (Omicron Ceti) 700

Antares (Alpha Scorpii) 700

Betelgeuse (Alpha Orionis) 650

S Pegasi 580

T Cepheii 540

S Orionis 530

W Hydrae 520

Y1 Aurigae 511

119 Tauri 510

R Cassiopeiae 500

Delta Canis Majoris (Wezen) 482

Chi Cygni 470

J Cassiopeiae 460

Alpha Herculis (Ras Algethi) 460

Eta Carinae 400

The Pistol Star 340

Chi Cygni 300

Epsilon Aurigae B 295

Deneb (Alpha Cygni) 220

LBV 1806-20 200

Epsilon Aurigae A 175

Zeta Aurigae 160

Epsilon Pegasi (Enif) 150

Gamma Crucis (Gacrux) 113

Beta Cygni A1 109

Epsilon Aurigae 100

Gamma Andromedae 83

Alpha Leporis (Arneb) 77

Rigel (Beta Orionis) 70

Epsilon Carinae 70

R Coronae Borealis 65

Canopus (Alpha Carinae) 65

Delta Orionis (Mintaka) 60

Zeta Orionis (Alnitak) 60

Alpha Persei (Mirfak) 60

Zeta Geminorum (Mekbuda) 60

Eta Aquilae 60

Beta Ursae Minoris (Kochab) 41

Aldebaran (Alpha Tauri) 43

Gamma Draconis (Eltanin) 50

VV Cephei A, a super giant, was till recently the largest star known. It is of spectral type M2 and is about 1600-1900 times the Sun's diameter. If it replaced the Sun in our solar system, it would extend to the orbit of Saturn. It is 275,000-575,000 times as luminous as the Sun.

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13y ago

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