Unfortunately, both Dea Dia and Metal and Stars mods have some required dependencies that won't be cleanly removed if you were to just enable this mod, then disable those mods, because you'll still have those required dependencies.
If you don't mind those incidental dependencies, you can just enable this mod as a shortcut, then disable Dea Dia, Metal and Stars, and then disable this mod. All the other planets and stuff will still be enabled and load properly; the only actual change that this mod makes is if you happen to install Lignumis, and even then, it's more of a cosmetic tech tree change that only applies with one specific non-default setting
If you are comfortable with making modifications to existing mod files, you can easily make your own customized version with the planets removed by following these newly added instructions in the FAQ section
The short version is you basically just extract the mod, change the name of the mod so it doesn't get overwritten by future updates, and remove the planets you don't want from info.json; all it takes is a text editor. This would prevent those unnecessary dependency mods from getting loaded, specifically Armoured Biters and Frost Biters, but also stuff like Lex's Aircraft, Spidertron Partols, Robocharger, all things you might not need or want, but that would add a bit extra initial loading time or possibly even lag.
