A Trinary system comprised of three M-type red dwarfs.
The Stars A Dog and Z Dog orbit each other at a distance of 0.03AU, significantly closer than the star Sol and Sol I (Mercury) from historical records of the Old Terra system. These two stars form the A Dog Z system.
The A Dog Z system share an orbit with B Dog, the third component in the trinary system.
A Gate links A Dog Z to B Dog, it is considered to be a distance of 1 and red.
The Place of Penance is dragged along the L5 Lagrange point of Z Dog.