アルニタク vs ミンタカ
| 特性 |
アルニタク
|
ミンタカ
|
| 名称 |
50Zet Ori |
34Del Ori |
| 星座 |
Orion |
Orion |
| スペクトル型 |
Class O — O-type (Blue) |
Class O — O-type (Blue) |
| 見かけの等級 |
+1.74 |
+2.25 |
| 絶対等級 |
-5.03
|
-4.38
|
| 距離 |
736 ly |
692 ly |
| 質量 |
N/A
|
N/A
|
| 半径 |
N/A
|
N/A
|
| 温度 |
N/A
|
N/A
|
| 光度 |
N/A
|
N/A
|
主な違い
- ◆ Both are O-type stars in Orion's Belt, but Alnitak is the eastern star and Mintaka the western.
- ◆ Alnitak is the brightest O-type star in the night sky; Mintaka lies almost exactly on the celestial equator.
- ◆ Alnitak is near the Horsehead Nebula and Flame Nebula which it illuminates with its intense UV radiation.
- ◆ Both are multiple star systems containing O-type primaries.
- ◆ Alnitak is somewhat more massive and more distant than Mintaka.