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
                           (Population) Atens (a < 1.0 AU)
                             a0.7410891 (Minor planet) (163693) Atira (2003 CP20)
                             a0.8320426 (Minor planet) (2100) Ra-Shalom (1978 RA)
                             a0.8442123 (Minor planet) (2340) Hathor (1976 UA)
                             a0.8787873 (Minor planet) (326290) Akhenaten (1998 HE3)
                             a0.9221621 (Minor planet) (99942) Apophis (2004 MN4)
                             a0.9377581 (Minor planet) (136818) Selqet (1997 MW1)
                             a0.9474641 (Minor planet) (5381) Sekhmet (1991 JY)
                             a0.9668828 (Minor planet) (2062) Aten (1976 AA)
                             a0.973697 (Minor planet) (3554) Amun (1986 EB)
                             a0.9894739 (Minor planet) (3362) Khufu (1984 QA)
                             a0.9976933 (Minor planet) (3753) Cruithne (1986 TO)