Gamma Orionis vs Rigel

Property Gamma Orionis Rigel
Ký Hiệu 24Gam Ori 19Bet Ori
Chòm Sao Orion Orion
Phân Loại Quang Phổ Class B — B-type (Blue-White) Class B — B-type (Blue-White)
Cấp Sao Biểu Kiến +1.64 +0.18
Cấp Sao Tuyệt Đối -2.80 -6.93
Khoảng Cách 252 ly 863 ly
Khối Lượng N/A N/A
Bán Kính N/A N/A
Nhiệt Độ N/A N/A
Độ Sáng N/A N/A

Key Differences

  • Both are hot B-type stars in Orion, marking opposite corners of the hunter's torso.
  • Rigel (Beta Orionis) is a blue supergiant at ~21 M☉; Bellatrix (Gamma Orionis) is a blue giant at ~8.4 M☉.
  • Rigel is far more luminous at ~120,000 L☉ versus Bellatrix at ~6,400 L☉.
  • Bellatrix is much closer at ~250 light-years; Rigel is also ~860 light-years distant.
  • Bellatrix will eventually become an orange giant and finally a massive white dwarf, not a supernova.

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