Deneb vs Rigel

Property Deneb Rigel
Designación 50Alp Cyg 19Bet Ori
Constelación Cygnus Orion
Clase Espectral Class A — A-type (White) Class B — B-type (Blue-White)
Magnitud Aparente +1.25 +0.18
Magnitud Absoluta -6.93 -6.93
Distancia 1,412 ly 863 ly
Masa N/A N/A
Radio N/A N/A
Temperatura N/A N/A
Luminosidad N/A N/A

Key Differences

  • Deneb is an A-type white supergiant; Rigel is a B-type blue supergiant.
  • Deneb is the most distant first-magnitude star at ~2,615 light-years; Rigel is about 860 light-years away.
  • Deneb has an intrinsic luminosity of ~196,000 L☉ — one of the most luminous known supergiants.
  • Both form vertices of famous asterisms: Deneb in the Summer Triangle, Rigel at Orion's foot.
  • Rigel's mass is slightly higher at ~21 M☉ versus Deneb's ~19 M☉.

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