Achernar vs Antares
| Eigenschaft | Achernar | Antares |
|---|---|---|
| Bezeichnung | Alp Eri | 21Alp Sco |
| Sternbild | N/A | Scorpius |
| Spektralklasse | Class B — B-type (Blue-White) | Class M — M-type (Red) |
| Scheinbare Helligkeit | +0.45 | +1.06 |
| Absolute Helligkeit | -2,70 | -5,09 |
| Entfernung | 139 ly | 554 ly |
| Masse | N/A | N/A |
| Radius | N/A | N/A |
| Temperatur | N/A | N/A |
| Leuchtkraft | N/A | N/A |