アクルックス vs Hadar

Property アクルックス Hadar
名称 Alp1Cru Bet Cen
星座 Crux Centaurus
スペクトル型 Class B — B-type (Blue-White) Class B — B-type (Blue-White)
見かけの等級 +0.77 +0.61
絶対等級 -4.20 -4.79
距離 322 ly 392 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

  • ◆ Both are bright B-type stars in Centaurus/Crux, forming the southern pointer stars to the Southern Cross.
  • ◆ Hadar (Beta Centauri) is a triple star system; Acrux is also a multiple star system.
  • ◆ Hadar is about 525 light-years away; Acrux is slightly farther at ~321 light-years.
  • ◆ Together with Alpha Centauri, Hadar points toward the Southern Cross where Acrux marks the top.
  • ◆ Both have very high intrinsic luminosities — Hadar at ~41,700 L☉ and Acrux at ~25,000 L☉.

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