Aludra
31Eta CMa
Aludra is a B-type (Blue-White) star located in the constellation Canis Major. It carries the designation 31Eta CMa.
At a distance of roughly 1,989 light-years, Aludra is a distant star lying deep within the Milky Way galaxy.
Aludra is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.45, Aludra is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution. Observers will note its blue hue, which corresponds to a B-V color index of -0.083.
Propriétés physiques
| Classe Spectrale | Class B — B-type (Blue-White) |
| Indice de couleur (B−V) | -0,083 |
Observation
| Magnitude Apparente | +2.45 |
| Magnitude Absolue | -6,48 |
| Distance | 1,989 ly |
| Constellation | Canis Major |
Position
| Ascension droite | 7h 24,10m |
| Déclinaison | -29° 18,19′ |
Questions fréquentes
What type of star is Aludra?
Aludra is a Class B — B-type (Blue-White) star.
How far is Aludra from Earth?
Aludra is approximately 1,988.8 light-years from Earth.
Can you see Aludra with the naked eye?
With an apparent magnitude of 2.45, Aludra is visible to the naked eye.
What constellation is Aludra in?
Aludra is located in the constellation Canis Major.