A cewar ƙamus, Proxima Centauri yana nufin tauraro mafi kusa da tsarin hasken rana, wanda yake kusan shekaru 4.24 haske a cikin ƙungiyar taurarin Centaurus. Tauraro jajayen dwarf ne mai kima da kimani kashi takwas na Rana kuma wani bangare ne na tsarin tauraro uku da aka fi sani da Alpha Centauri.
