Zeta Orionis vs Delta Orionis
| Property |
Zeta Orionis |
Delta Orionis |
| Designação |
50Zet Ori |
34Del Ori |
| Constelação |
Orion |
Orion |
| Classe Espectral |
Class O — O-type (Blue) |
Class O — O-type (Blue) |
| Magnitude Aparente |
+1.74 |
+2.25 |
| Magnitude Absoluta |
-5.03 |
-4.38 |
| Distância |
736 ly |
692 ly |
| Massa |
N/A |
N/A |
| Raio |
N/A |
N/A |
| Temperatura |
N/A |
N/A |
| Luminosidade |
N/A |
N/A |
Key Differences
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Both are O-type stars in Orion's Belt, but Alnitak is the eastern star and Mintaka the western.
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Alnitak is the brightest O-type star in the night sky; Mintaka lies almost exactly on the celestial equator.
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Alnitak is near the Horsehead Nebula and Flame Nebula which it illuminates with its intense UV radiation.
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Both are multiple star systems containing O-type primaries.
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Alnitak is somewhat more massive and more distant than Mintaka.