Pluto is the largest planet in the solar system. The large gas giant orbits around both Sol and Luna, between Neth and Artica. It is far enough away from the planets to be relatively unaffected by any interactions between the two stars, taking six Nethian years to travel around the central gravitational point. It was named out of irony, people enjoying that the largest planet in their new system would be named after the planet too small to remain a planet. It has no atmosphere and cannot support life.