At 4.3 light-years away, Alpha Centauri A and B are the nearest Sun-like stars to our solar system. They orbit with Proxima Centauri as a triple star system.
Alpha Centauri A is a Class G star that is 1.1 times the mass of the Sun. Alpha Centauri B is slightly cooler Class K star that is 0.9 times the mass of the Sun. Proxima Centauri, the closest star to the Sun, is a much smaller and cooler star, called a red dwarf.
While no planets have been found around Alpha Centauri A or B, Proxima Centauri has two confirmed planets.
Jenny McElligott (Advocates in Manpower Management, Inc.): Lead Animator Aaron E. Lepsch (ADNET Systems, Inc.): Technical Support Joy Ng (KBR Wyle Services, LLC): Lead Producer Miles S. Hatfield (Telophase): Lead Producer
Please give credit for this item to: NASA's Goddard Space Flight Center Conceptual Image Lab
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