Alpha Centauri (Rigil Kentaurus) is the nearest star system to the Earth beyond the Sun. It is a double or triple star, Alpha Centauri A being a G2 V-type star with Absolute Magnitude (M) 4.38 and Alpha Centauri B a K1 V-type star with absolute magnitude 5.71. 8.30. They orbit in about 80 years
The third star is Alpha Centauri C or Proxima Centauri if of type M6 Ve.
Characteristics (Alpha Centauri A):
Absolute Magnitude (M)
Apparent Magnitude (m)
Astronomical Unit (AU)