Nadir

Nadir is the ninth and outermost planet from Archangel

Features
Nadir is a frozen Brown Dwarf, originally laying beyond the gaze of humanity before it's decaying orbit brought it closer to Archangel. Its gravitational pull has flung numerous comets and asteroids towards the other planets in the system. Nadir has 5 moons in total, with its largest and most notable being Ytima.