Class M stars are red stars that form the bulk of the main sequence stars in the galaxy. Their mass is low, as is their surface temperature.
— In-Game Description
Proxima Centauri is a red dwarf, class M star in the Alpha Centauri system. It orbits the barycentre of Alpha Centauri A and Alpha Centauri B. It has a solar radius of 0.265400 and is 4.22 light-years from Sol.[1]
The only planet orbiting Proxima Centauri is Eden, which the outpost Hutton Orbital orbits.
Proxima Centauri is so named for being the closest other star to Sol.