Proxima Centauri
/ˌprɒksɪməsenˈtɔːraɪ/- Astronomy a faint red dwarf star associated with the bright binary star Alpha Centauri. It is the closest known star to the solar system (distance 4.24 light years).【天文】（半人马座）比邻星。
词源
Latin，'nearest (star) of Centaurus'.