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Alpha Centauri is the closest star system to the Sol Solar System, being 4.37 light-years from the Sun.[1]

Background[]

The system consists of three stars: Alpha Centauri A and Alpha Centauri B, which form the binary star Alpha Centauri AB, and a small and faint red dwarf, Alpha Centauri C (also named Proxima Centauri), which is loosely gravitationally bound and orbiting the other two at a current distance of about 13,000 astronomical units (0.21 ly).

Alpha Centauri

Alpha, Beta, and Proxima Centauri

Alpha Centauri A[]

Alpha Centauri A is the principal member, or primary, of the binary system, being slightly larger and more luminous than the Sun. It is a solar-like main-sequence star with a yellowish color, whose stellar classification is spectral type G2 V.

Alpha Centauri B[]

Alpha Centauri B is the companion star, or secondary of the binary system, and is slightly smaller and less luminous than the Sun. It is a main-sequence star of spectral type K1 V, making it more an orange color than the primary star.

Proxima Centauri[]

Proxima Centauri is of spectral class M6 Ve, a small main-sequence star (Type V).

Battle Sites near Alpha Centauri[]

References[]

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