Titania

Titania is Uranus's largest real-world moon, parked in Sol on the Jambonium map as an outer-sphere rock near the Elysian Gate. Named 40k moons of Uranus are Ariel, Umbriel, Oberon, and Cordelia; Titania itself is not described. Treat it as a mining or habitat moon of the Second Sphere, and do not give it Titan's Grey Knights citadel.