Question about planet spawning

Hello All!

I have been playing around with console commands recently, and one of the things that I tried to accomplish was to create a planet.  Now, I obviously used the SpawnPlanet console command, and I ended up using several versions of some of the following:

SpawnPlanet PlanetEarth 32

SpawnPlanet PlanetAltaria 32

etc.

However, I am not actually looking to spawn an Earth or Altaria or Drengi home world planet.  What I am trying to do is spawn an uninhabited planet, just an empty planet.  What am I doing wrong?  Or is it not possible to create planets using the command console?

Thanks for your input!