A quaternary star system comprised of an orange dwarf star, two red dwarfs, and a brown dwarf.
The primary star, Libra A, is a type X orange dwarf star roughly 75% the mass and radius, and 15% the luminosity of Sol, the star of Old terra. It is a type K4V and emits x-rays.
A nearly perfect copy of Old terra exists in orbit around Libra A, named Gaea. It is the home of the Virid.
The two red dwarfs, Libra B and Libra C, form a subsystem in orbit with Libra A.
The brown dwarf Libra D hosts a myriad of sattilites, including a barren super-earth, Libra D Prime.