Ácrux vs Alioth
| Propiedad | Ácrux | Alioth |
|---|---|---|
| Designación | Alp1Cru | 77Eps UMa |
| Constelación | Crux | Ursa Major |
| Clase Espectral | Class B — B-type (Blue-White) | Class A — A-type (White) |
| Magnitud Aparente | +0.77 | +1.76 |
| Magnitud Absoluta | -4,20 | -0,26 |
| Distancia | 322 ly | 82.5 ly |
| Masa | N/A | N/A |
| Radio | N/A | N/A |
| Temperatura | N/A | N/A |
| Luminosidad | N/A | N/A |