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.

Propriedades físicas

Classe Espectral B Class B — B-type (Blue-White)
Índice de cor (B−V) -0,158

Observação

Magnitude Aparente +0.45
Magnitude Absoluta -2,70
Distância 139 ly

Posição

Ascensão reta 1h 37,71m
Declinação -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.