Alpheratz vs Denébola

Property Alpheratz Denébola
Designación 21Alp And 94Bet Leo
Constelación Andromeda Leo
Clase Espectral Class B — B-type (Blue-White) Class A — A-type (White)
Magnitud Aparente +2.07 +2.14
Magnitud Absoluta -0.30 1.93
Distancia 97.0 ly 35.9 ly
Masa N/A N/A
Radio N/A N/A
Temperatura N/A N/A
Luminosidad N/A N/A

Key Differences

  • Both are young A-type stars associated with notable asterisms.
  • Alpheratz anchors the Great Square of Pegasus and is the brightest star in Andromeda.
  • Denebola marks the tail of Leo and is a Delta Scuti variable with slight brightness fluctuations.
  • Alpheratz is a chemically peculiar mercury-manganese star with unusual atmospheric abundances.
  • Denebola hosts a circumstellar debris disk suggesting ongoing planetary formation.

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