DISTANCE: 11.5 light years from Sol NEIGHBORING SYSTEMS: Sirius 5.2 lys Alpha Centauri 13 lys Groombridge 1618 13.1 lys PROCYON is a binary star system which consists of both a large yellow-white dwarf and a small white dwarf companion with an average distance between them of only 14.9 AUs. Procyon A […]