This mod adds more asteroid types into the game.
Mods introducing new content into the game.
Changes to enemies or entirely new enemies to deal with.
Map generation and terrain modification.
Well there are a lot of planets like Nekohaven and other planets from rjdunlap, and those planets are hybrids of some vanilla planets, so maybe add your asteroids to em according to their "parent" planets? https://mods.factorio.com/user/rjdunlap
also paths in mods https://mods.factorio.com/mod/interstellar-travel https://mods.factorio.com/mod/AsteroidBelt