Achernar
Alp Eri
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 | 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′ |
Perguntas frequentes
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.