Achernar

Alp Eri

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Achernar is a B-type (Blue-White) star. It carries the designation Alp Eri.

Located approximately 139.4 light-years from Earth, Achernar resides within the broader disk of our Milky Way galaxy.

Achernar is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.

Achernar has an apparent magnitude of +0.45, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its blue hue, which corresponds to a B-V color index of -0.158.

Propriétés physiques

Classe Spectrale B Class B — B-type (Blue-White)
Indice de couleur (B−V) -0,158

Observation

Magnitude Apparente +0.45
Magnitude Absolue -2,70
Distance 139 ly

Position

Ascension droite 1h 37,71m
Déclinaison -57° 14,21′

Frequently Asked Questions

What type of star is Achernar?
Achernar is a Class B — B-type (Blue-White) star.
How far is Achernar from Earth?
Achernar is approximately 139.4 light-years from Earth.
Can you see Achernar with the naked eye?
With an apparent magnitude of 0.45, Achernar is visible to the naked eye.