Imperium naturæ C. Linnaeus, 1758 - nature
   Mundus Plinius - physical world
     Astra Plinius - celestial bodies
       Planetæ - planets
         1 (Planet) Saturnus veter. see Planet Saturn veter.
         2 (Planet) Jupiter veter.
         3 (Planet) Mars veter.
         4 (Planet) Tellus veter. - Earth see Planet Earth veter.
         5 (Planet) Venus veter.
         6 (Planet) Mercurius veter. see Planet Mercury veter.
         7 (Moon) Luna see Moon Moon veter.