Epsilon Orionis vs Rígel
| Propriedade | Epsilon Orionis | Rígel |
|---|---|---|
| Designação | 46Eps Ori | 19Bet Ori |
| Constelação | Orion | Orion |
| Classe Espectral | Class B — B-type (Blue-White) | Class B — B-type (Blue-White) |
| Magnitude Aparente | +1.69 | +0.18 |
| Magnitude Absoluta | -7,22 | -6,93 |
| Distância | 1,977 ly | 863 ly |
| Massa | N/A | N/A |
| Raio | N/A | N/A |
| Temperatura | N/A | N/A |
| Luminosidade | N/A | N/A |
Principais Diferenças
- ◆ Both are massive, highly luminous stars visible in Orion.
- ◆ Alnilam is the middle star of Orion's Belt — both are blue supergiants, though Alnilam is hotter at ~27,500 K versus Rigel's ~12,100 K.
- ◆ Alnilam is about 2,000 light-years distant; Rigel is closer at ~860 light-years.
- ◆ Alnilam has a mass of ~40 M☉, nearly double Rigel's ~21 M☉.
- ◆ Rigel is visible at the foot of Orion; Alnilam is the central jewel of Orion's Belt.