アルニラム vs アルニタク

Property アルニラム アルニタク
名称 46Eps Ori 50Zet Ori
星座 Orion Orion
スペクトル型 Class B — B-type (Blue-White) Class O — O-type (Blue)
見かけの等級 +1.69 +1.74
絶対等級 -7.22 -5.03
距離 1,977 ly 736 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

Key Differences

  • ◆ Alnilam (Epsilon Orionis) is the central star of Orion's Belt; Alnitak (Zeta Orionis) is the eastern star.
  • ◆ Alnilam is an F supergiant class at ~27,500 K; Alnitak is an O-type at ~29,500 K.
  • ◆ Alnilam has a mass of ~40 M☉ versus Alnitak's ~33 M☉.
  • ◆ Alnitak is closer at ~1,260 light-years; Alnilam is ~2,000 light-years away.
  • ◆ Both are expected to end their lives as supernovae within the next few million years.

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アルニタク vs ミンタカ リゲル vs アルニラム
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