アケルナル vs レグルス

Property アケルナル レグルス
名称 Alp Eri 32Alp Leo
星座 N/A Leo
スペクトル型 Class B — B-type (Blue-White) Class B — B-type (Blue-White)
見かけの等級 +0.45 +1.36
絶対等級 -2.70 -0.57
距離 139 ly 79.3 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 rapidly rotating hot stars that are noticeably oblate due to centrifugal force.
  • ◆ Achernar's equatorial diameter is 56% larger than its polar diameter — the flattest bright star known.
  • ◆ Achernar is a B-type star at ~14,500 K; Regulus is also B-type at ~12,460 K.
  • ◆ Achernar is in Eridanus at 139 light-years; Regulus is in Leo at 79 light-years.
  • ◆ Regulus sits almost exactly on the ecliptic and is frequently occulted by the Moon.

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