what is alpha centauri made of
Alpha Centauri is part of a double, or triple, star system. The two main components are Alpha Centauri A and Alpha Centauri B. The third star, a red dwarf called Proxima Centauri, is thought to be about 4.22 light-years distant and is actually our sunâs closest neighbor among the stars.ottom line: The Alpha Centauri system is the closest star system to our sun. On our skyâs dome, we see this multiple system as a single star â the third-brightest star visible from Earth. Charts, photos and info about this fascinating star system.
The two main stars are Alpha Centauri A and Alpha Centauri B, which form a binary pair. The third star, which may or may not be part of the system, is Proxima Centauri. It is about 4.22 light-years from Earth and is the closest star other than the sun.Alpha Centauri A and B orbit a common center of gravity every 80 years. The average distance between them is about 11 astronomical units (AU) â about the same distance as the sun is to Uranus.These stars are an average of 4.3 light-years from Earth.t is about 4.22 light-years from Earth and is the closest star other than the sun. Alpha Centauri A and B orbit a common center of gravity every 80 years.