Solar System
Age                                          4.568 billion years
Location                                     Local Interstellar Cloud, Local Bubble, Orion–Cygnus
                                             Arm, Milky Way
System mass                                  1.0014 solar masses
Nearest star                                 Proxima Centauri (4.22 ly), Alpha Centauri system
                                             (4.37 ly)
Nearest known planetary system               Alpha Centauri system (4.37 ly)
                                       Planetary system
Semi-major axis of outer planet (Neptune)    30.10 AU (4.503 billion km)
Distance to Kuiper cliff                     50 AU
No. of stars                                 1 (Sun)
No. of planets                               8 (Mercury, Venus, Earth, Mars,
                                             Jupiter, Saturn, Uranus, Neptune)
No. of known dwarf planets                   5 (IAU) (Ceres, Pluto, Haumea, Makemake, Eris)
No. of known natural satellites              421
No. of known minor planets                   620,276 (as of 2013-07-23)
No. of known comets                          3,218 (as of 2013-07-23)
No. of identified round satellites           19
Components of the Solar System
    The Sun
    8 Planets
    5 Dwarf planets
    Satellites
    Asteroids
    Meteoroids
    Comets
    Plasma – The electrically charged particles
    Interplanetary dust