Antarès

21Alp Sco

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Antares shows the deepest red of the leading stars, a B–V colour index of 1.865 matching its M-type classification. Designated Alpha Scorpii, it dominates the constellation Scorpius, where its ruddy glow at apparent magnitude 1.06 sits close to the ecliptic and is sometimes mistaken for the planet Mars. The star lies roughly 554 light-years away, and its absolute magnitude of −5.09 marks an intrinsic output far exceeding the Sun's. A southern declination of −26° keeps Antares low in the sky for northern observers while making it a prominent summer landmark across the southern hemisphere.

Propriétés physiques

Classe Spectrale M Class M — M-type (Red)
Indice de couleur (B−V) 1,865

Observation

Magnitude Apparente +1.06
Magnitude Absolue -5,09
Distance 554 ly
Constellation Scorpius

Position

Ascension droite 16h 29,41m
Déclinaison -26° 25,92′

Related Chemistry

Explore the chemical elements connected to Antarès on our sister site ChemFYI.

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Frequently Asked Questions

What type of star is Antarès?
Antarès is a Class M — M-type (Red) star.
How far is Antarès from Earth?
Antarès is approximately 553.8 light-years from Earth.
Can you see Antarès with the naked eye?
With an apparent magnitude of 1.06, Antarès is visible to the naked eye.
What constellation is Antarès in?
Antarès is located in the constellation Scorpius.