Delta Vega was a Class G planet located near the galactic barrier, in the Delta Vega sector. During the mid-23rd century, it was the site of a Federation lithium cracking station, one of the most distant Federation outposts. During the 23rd century, the planet was uninhabited, visited by ore ships every twenty years at most. (TOS: "Where No Man Has Gone Before", TNG: "Aquiel")