The Planets Suite | Fully Procedural Planet Materials
Append the materials into an existing file, or use the included .blend file as a base for a new file.
https://blender.stackexchange.com/questions/55943/how-do-i-copy-material-from-one-blend-file-to-another
The file also includes custom nodes for layering clouds, city night light effects (Works best in Eevee), craters, and atmospheres.
Delete the custom node and replace it with a new one of the same name. It will automatically have the default node values.
Possible? Definitely. Recommended? Probably not, at least not on the the more complex nodes, unless you have a very powerful system.
You can bake the individual maps, or combined maps to a single texture, in the Cycles render engine.
Blender Docs (Bake): https://docs.blender.org/manual/en/latest/render/cycles/baking.html
Video Tutorial (UV Unwrap + Bake): https://www.youtube.com/watch?v=c2ut0Trcdi0
Blender Docs (Bake): https://docs.blender.org/manual/en/latest/render/cycles/baking.html
Video Tutorial (UV Unwrap + Bake): https://www.youtube.com/watch?v=c2ut0Trcdi0
https://docs.blender.org/manual/en/latest/render/cycles/baking.html