Achernar vs Antares
| Propiedad | Achernar | Antares |
|---|---|---|
| Designación | Alp Eri | 21Alp Sco |
| Constelación | N/A | Scorpius |
| Clase Espectral | Class B — B-type (Blue-White) | Class M — M-type (Red) |
| Magnitud Aparente | +0.45 | +1.06 |
| Magnitud Absoluta | -2,70 | -5,09 |
| Distancia | 139 ly | 554 ly |
| Masa | N/A | N/A |
| Radio | N/A | N/A |
| Temperatura | N/A | N/A |
| Luminosidad | N/A | N/A |