Achernar vs Alnitak
| Propiedad | Achernar | Alnitak |
|---|---|---|
| Designación | Alp Eri | 50Zet Ori |
| Constelación | N/A | Orion |
| Clase Espectral | Class B — B-type (Blue-White) | Class O — O-type (Blue) |
| Magnitud Aparente | +0.45 | +1.74 |
| Magnitud Absoluta | -2,70 | -5,03 |
| Distancia | 139 ly | 736 ly |
| Masa | N/A | N/A |
| Radio | N/A | N/A |
| Temperatura | N/A | N/A |
| Luminosidad | N/A | N/A |