Alpha Centauri A and B (IMAGE) University of Arizona Caption Alpha Centauri A (left) and Alpha Centauri B imaged by the Hubble Space Telescope. Located in the constellation of Centaurus (The Centaur), at a distance of 4.3 light-years, the star pair orbits a common center of gravity once every 80 years, with an average distance of about 11 times the distance between Earth and the sun. Credit NASA/ESA/Hubble Usage Restrictions This visual may only be used for the purpose of posting and/or reporting of this news release. Credit information must be provided as indicated. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.