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Size comparison: Sun vs UY Scuti



Size comparison between the two stars, the Sun and UY Scuti.

UY Scuti is so big in this comparison, you can't see the sun. UY Scuti is very rich in metal, so it has a very short lifespan. It will end in a supernova in only a few million years.

UY Scuti
UY Scuti


Object Sun UY Scuti
TypeStar, yellow dwarfStar, red supergiant
Age4.6 billion years5 million years
Diameter1,392,684 km2,376,511,200 km
Mean radius696,342 km1,188,255,600 km
Mass1.98 × 1030 kg1.7 × 1031 kg
Surface gravity274.4 m/s²-0.005 m/s²
Circumference4.3 million km7.46 billion km
Surface area6.09 × 1012 km21.77 × 1019 km2
Volume1.41 × 1018 km37 × 1027 km3
Atmosphere composition 73% hydrogen,
25% helium,
0.8% oxygen,
0.3% carbon
hydrogen,
helium
Crust composition 73% hydrogen,
25% helium,
0.8% oxygen,
0.3% carbon
hydrogen,
helium
Sun distance0 km9,500 light years
Luminosity3.82 × 1026 W1.3 × 1032 W
Photosphere temperature5,772 K3,365 K
Distance from the Milky Way center27,200 light years-
Spectral classificationG2VM2-M4Ia-Iab
Right ascension19h 4m 30s18h 27m 36.53s
Declination+63.87°−12° 27′ 58.866″


Note: if one of the objects is not visible, it just means that it is too tiny to be displayed compared to the other one.


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