Achernar vs Alnitak
| Property | Achernar | Alnitak |
|---|---|---|
| Designation | Alp Eri | 50Zet Ori |
| Constellation | N/A | Orion |
| Spectral Class | Class B — B-type (Blue-White) | Class O — O-type (Blue) |
| Apparent Magnitude | +0.45 | +1.74 |
| Absolute Magnitude | -2.70 | -5.03 |
| Distance | 139 ly | 736 ly |
| Mass | N/A | N/A |
| Radius | N/A | N/A |
| Temperature | N/A | N/A |
| Luminosity | N/A | N/A |