What is the distance to Alpha Centauri in light years and parsecs?
Alpha Centauri is located 4.2465 light-years from Earth which translates to 1.3020 parsecs for astronomers using standard units.
Alpha Centauri is located 4.2465 light-years from Earth which translates to 1.3020 parsecs for astronomers using standard units.
Johannes Bayer assigned the designation Alpha Centauri in his 1603 star catalog where the name derives from Greek mythology representing a half-man half-horse creature wounded by Heracles.
Robert T.A. Innes discovered Proxima Centauri in 1915 during a proper motion survey while the International Astronomical Union approved Rigil Kentaurus and Toliman as official names on the 10th of August 2018.
Age estimates place all three components between 5 billion and 6 billion years old based on asteroseismic data.
Proxima b emerged in 2016 with minimum mass of 1.17 Earth masses orbiting at 0.049 AU while Proxima d appeared in 2022 after detection by astronomers using specialized spectrographs.