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 (Region) Kuiper Belt (Population) plutinos 39.3433182 (Minor planet) (38628) Huya (2000 EB173) 39.3532685.0 (Dwarf planet) (134340) Pluto C.W. Tombaugh, 1930 39.3532685.1 (Moon) (134340) Pluto I Charon J.W. Christy, 1978 39.3532685.2 (Moon) "S/2012 (134340) 1" Showalter et al., 2012 - P5 39.3532685.3 (Moon) (134340) Pluto II Nix H.A. Weaver et al., 2005 39.3532685.4 (Moon) "S/2011 (134340) 1" Showalter et al., 2011 - P4 39.3532685.5 (Moon) (134340) Pluto III Hydra H.A. Weaver et al., 2005 39.372519 (Minor planet) (28978) Ixion (2001 KX76) 39.4063958 (Minor planet) (90482) Orcus (2004 DW)