40 Eridanus (also known as Vulcan System) is an trinary star system located 16,5 lightyears or 5 parsecs from Sol System. 40 Eridanus B and C are an binary system and they are circling themself within 256 years. Both stars are orbiting 40 Eridanus A within 8000 years. Vulcan is one of the planets in the 40 Eridanus star system and homeworld of the Vulcans, one of the founding members of the United Federation of Planets. The vulcan homeworld has no moons, but it seems to have some close planetary trabants. Vulcan's climate is general harsh, big regions of the surface consists of deserts or mountain ranges. Besides a considerably higher force of gravity prevails, and the atmosphere is thinner than on earth. Desert areas are inclined to large quantities of heat, light and sand fire storms.