Проксима Центавра vs Rigil Kentaurus

Property Проксима Центавра Rigil Kentaurus
Обозначение N/A Alp1Cen
Созвездие Centaurus Centaurus
Спектральный класс Class M — M-type (Red) Class G — G-type (Yellow)
Видимая звёздная величина +11.01 -0.01
Абсолютная звёздная величина 15.45 4.38
Расстояние 4.2 ly 4.3 ly
Масса N/A N/A
Радиус N/A N/A
Температура N/A N/A
Светимость N/A N/A

Key Differences

  • Both are members of the Alpha Centauri system, the nearest stellar system to the Sun.
  • Rigil Kentaurus (Alpha Cen A) is a G-type solar analog; Proxima Centauri is an M-type red dwarf.
  • Rigil Kentaurus is slightly more massive and luminous than the Sun; Proxima Centauri has just 12% of the Sun's mass.
  • Proxima Centauri orbits the Alpha Centauri AB pair at a vast distance of roughly 0.2 light-years.
  • Rigil Kentaurus is visible to the naked eye at magnitude −0.01; Proxima is invisible without a telescope.

Related Comparisons

← All Comparisons