Achernar vs Alkione
| Eigenschaft | Achernar | Alkione |
|---|---|---|
| Bezeichnung | Alp Eri | 25Eta Tau |
| Sternbild | N/A | Taurus |
| Spektralklasse | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| Scheinbare Helligkeit | +0.45 | +2.85 |
| Absolute Helligkeit | -2,70 | -2,61 |
| Entfernung | 139 ly | 403 ly |
| Masse | N/A | N/A |
| Radius | N/A | N/A |
| Temperatur | N/A | N/A |
| Leuchtkraft | N/A | N/A |