Eltanin

33Gam Dra

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An orange K-type giant with a pronounced colour index of 1.521, Eltanin is the brightest star of Draco, the Dragon, despite carrying only the Gamma designation of that sprawling northern constellation. It lies about 154 light-years away and shines at apparent magnitude 2.24. Its absolute magnitude of −1.13 marks a genuine luminosity above the solar norm, the light of an evolved giant whose cooler surface gives it its distinctly orange colour. As the leading light of the Dragon, Eltanin is the principal naked-eye star marking the head of Draco, a region that winds through the northern sky between the two Bears.

Propriétés physiques

Classe Spectrale K Class K — K-type (Orange)
Indice de couleur (B−V) 1,521

Observation

Magnitude Apparente +2.24
Magnitude Absolue -1,13
Distance 154 ly

Position

Ascension droite 17h 56,61m
Déclinaison 51° 29,33′

Frequently Asked Questions

What type of star is Eltanin?
Eltanin is a Class K — K-type (Orange) star.
How far is Eltanin from Earth?
Eltanin is approximately 154.3 light-years from Earth.
Can you see Eltanin with the naked eye?
With an apparent magnitude of 2.24, Eltanin is visible to the naked eye.