Sig

Hot blue star

Its story

Sigma Herculis is a hot blue-white star, far more massive and luminous than the Sun, lying just over three hundred light-years away. It belongs to that cohort of B-type bodies that burn violently, spending in a few hundred million years a fuel reserve that will last the Sun for ten thousand. It shines in a quieter corner of Hercules, away from the keystone of the kneeling hero.

Constellation: Hercules
Apparent magnitude: 4.20
Distance: 314.9 light years
Coordinates (J2000): RA 248.526° · Dec 42.437°
Catalogue: HIP 81126 · HD 149630

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