The Suudha galaxy is a sizeable ring galaxy, at around 50 kilolightyears across. It contains several billions of stars, most being in outer rings, away from the voracious black hole. The center of the galaxy is home to an active galactic nucleus, but is only a quiet-radio AGN.
The Daa are the only known technological civilization, probably due to the small habitable zone at the outskirts of the galaxy. Technological remnants have been found on one planet, but it is now sterile due to Daa bombardment.