Antares vs Beteigeuze

Property Antares Beteigeuze
Bezeichnung 21Alp Sco 58Alp Ori
Sternbild Scorpius Orion
Spektralklasse Class M — M-type (Red) Class M — M-type (Red)
Scheinbare Helligkeit +1.06 +0.45
Absolute Helligkeit -5.09 -5.47
Entfernung 554 ly 498 ly
Masse N/A N/A
Radius N/A N/A
Temperatur N/A N/A
Leuchtkraft N/A N/A

Key Differences

  • Both are famous red supergiants and iconic supernova candidates visible to the naked eye.
  • Betelgeuse is significantly larger at ~887 R☉; Antares has a radius of ~680 R☉.
  • Antares is in Scorpius and has long been compared to Mars due to its red colour; Betelgeuse marks Orion's shoulder.
  • Antares is about 604 light-years away; Betelgeuse is approximately 700 light-years distant.
  • Both show irregular variability and dramatic mass-loss through powerful stellar winds.

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