just a suggestion, maybe you can add an area for planets & moons, with sub-categories like you did for stars like habitable, scorched, ice, and others, and perhabs you can add quasars & supermassive black holes?
ok i'm not adding Hygiea or Juno the images don't have texture which makes it nearly impossible, and i'm gonna get rid of drills entirely until theres an update which adds actual basing