Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       Astra Plinius - celestial bodies
         Universe
           (Supercluster) Virgo-Hydra-Centaurus Supercluster
             (Supercluster) Virgo Supercluster
               (Cluster) Local Group
                 (Galaxy) Milky Way Galaxy veter.
                   (Spiral arm) Orion Arm
                     (Region) Local Bubble
                       Local Interstellar Cloud
                         (Planetary system) Solar System
                           (Planet-satellite system) Earth System
                             (Moon) Earth I (Moon) veter.
                               01 Catenae
                               02 Craters
                               03 Dorsa
                               04 Lacus
                               05 Maria
                               06 Montes
                               07 Oceanus
                               08 Paludes
                               09 Planitiae
                               10 Rimae
                               11 Rupes
                               12 Sinus
                               13 Valles
                               a "history" (Moon)