Ultimados

Ultimados is one of the largest and oldest documented brown dwarfs known to man and drood, it has a large system of many moons, some scientists hypothesize that one moon could potentially be habitable unlike the others. Ultimados formed in a undense cloud of hydrogen and helium approximately 5.43 billion years ago hence causing it to form easily, yet not produce enough hest for ignition, ultimately, it was rogue and captured other rogue worlds and made them its moons for a long while, it had been captured and slingshot by many stars accellerating it and causing it to have unusual galactic orbits within its life, it had also captured some asteroids from Oort clouds and outer belts and managed to make them form celestial bodies over time (mostly the lava worlds are products of that) as well as even 2 gas giants, drood and human scientists established that Ultimados is here to stay permanantly rather than just being a visitor like it was to many other stars, humans and droods alike plan to establish mining bases and habs in order to aid with out expansion accross the cosmos and galaxy, Ultimados is possibly going to be a tourist attraction as well if we were to do so...yet doing so would be quite hard for the droods....and you....
as for its rings they are possibly a combination of captured moons colliding violently as well as leftovrr remnants from formation, shepard moons have kept its rings pristine ever since these old collisions