Altair vs Vega

Property Altair Vega
Penunjukan 53Alp Aql 3Alp Lyr
Rasi Bintang Aquila Lyra
Kelas Spektral Class A — A-type (White) Class A — A-type (White)
Magnitudo Semu +0.76 +0.03
Magnitudo Mutlak 2.21 0.60
Jarak 16.7 ly 25.0 ly
Massa N/A N/A
Radius N/A N/A
Suhu N/A N/A
Luminositas N/A N/A

Key Differences

  • Both are A-type stars forming part of the Summer Triangle asterism along with Deneb.
  • Vega is at 25 light-years; Altair is even closer at 16.7 light-years.
  • Altair rotates extremely rapidly (once every 10.4 hours), making it noticeably oblate; Vega also rotates fast but less extremely.
  • Vega is about four times more luminous than Altair.
  • Vega has a prominent debris disk suggesting possible planetary formation; Altair's disk is less prominent.

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