Deneb vs Rigel

Property Deneb Rigel
Bezeichnung 50Alp Cyg 19Bet Ori
Sternbild Cygnus Orion
Spektralklasse Class A — A-type (White) Class B — B-type (Blue-White)
Scheinbare Helligkeit +1.25 +0.18
Absolute Helligkeit -6.93 -6.93
Entfernung 1,412 ly 863 ly
Masse N/A N/A
Radius N/A N/A
Temperatur N/A N/A
Leuchtkraft 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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