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HOME  >  SCIENCE  >  ASTRONOMY

Size comparison: Pistol Star vs Sun



Size comparison between the two stars, the Pistol Star and the Sun.

This star is one of the most massive known. It is found in the constellation of Sagittarius, specifically in the quintuplet cluster at the center of the galaxy. It is relatively young and will explode as a supernova or hypernova in 3 million years. She is in a surrounding nebulosity.

Sun
Sun


Object Pistol Star Sun
TypeStar, blue hypergiantStar, yellow dwarf
Age4 million years4.6 billion years
Diameter584,927,280 km1,392,684 km
Mean radius292,463,640 km696,342 km
Mass5.44 × 1031 kg1.98 × 1030 kg
Circumference1.8 billion km4.3 million km
Surface area1.07 × 1018 km26.09 × 1012 km2
Volume1.04 × 1026 km31.41 × 1018 km3
Sun distance25,000 light years0 km
Luminosity1.26 × 1033 W3.82 × 1026 W
Photosphere temperature12,000 K5,772 K
Distance from the Milky Way center-27,200 light years
Metallicity0.10.0122
Spectral classificationLBVG2V
Right ascension17h 46m 15.3s19h 4m 30s
Declination−28° 50′ 04″+63.87°


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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