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 (Planet) Earth veter. "spheres" (Earth) (Sphere) Biosphere (Earth) - zone of life "marine ecoregions" (Biogeographic realm) Temperate South America 1 (Biogeographic province) Warm Temperate Southeastern Pacific 2 (Biogeographic province) Juan Fernández and Desventuradas 3 (Biogeographic province) Warm Temperate Southwestern Atlantic 4 (Biogeographic province) Magellanic 5 (Biogeographic province) Tristan Gough