Estrela de Barnard vs Proxima Centauri

Property Estrela de Barnard Proxima Centauri
Designação N/A N/A
Constelação N/A Centaurus
Classe Espectral N/A Class M — M-type (Red)
Magnitude Aparente +9.54 +11.01
Magnitude Absoluta 13.24 15.45
Distância 6.0 ly 4.2 ly
Massa N/A N/A
Raio N/A N/A
Temperatura N/A N/A
Luminosidade N/A N/A

Key Differences

  • Both are nearby red dwarf stars invisible to the naked eye.
  • Barnard's Star has the highest proper motion of any known star (10.3 arcseconds per year).
  • Proxima Centauri is closer at 4.24 light-years; Barnard's Star is 5.96 light-years away.
  • Proxima Centauri has confirmed exoplanets in the habitable zone; Barnard's Star has only a sub-Earth candidate.
  • Barnard's Star will make its closest approach to the Sun in about 10,000 years.

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