Mercury Diamater: 3,100 miles Orbit: 36 million miles Day: 59 Earth days Year: 88 Earth days No Moons Venus Diamater: 7,500 miles Orbit: 67 million miles Day: 243 Earth days Year: 225 Earth days No Moons Earth Diamater: 7,926 miles Orbit: 93 million miles Day: 24 Earth hours Year: 365 Earth days One Moon Mars Diamater: 4,218 miles Orbit: 142 million miles Day: 24.4 Earth hours Year: 687 Earth days 2 Moons Deimos Phobos Jupiter Diamater: 89,400 miles Orbit: 483 million miles Day: 10 Earth hours Year: 11.86 Earth years 16 Moons Adrastea Ananke Amalthea Callisto Carme Elara Europa Ganymede Himalia Io Leda Lysithea Metis Pasiphae Sinope Thebe Saturn Diamater: 75,000 miles Orbit: 886 million miles Day: 10.4 Earth hours Year: 29.46 Earth years 17 Moons Atlas Calypso Dione Electra (or Helene) Enceladus Epimetheus Hyperion Iapetus Janus Mimas Pandora Phoebe Prometheus Rhea Telesto Tethys Titan Uranus Diamater: 32,300 miles Orbit: 1.8 billion miles Day: 17 Earth hours Year: 84 Earth years 15 Moons Ariel Belinda Bianca Cordelia Cressida Desdemona Juliet Miranda Oberon Ophelia Portia Puck Rosalind Titania Umbriel Neptune Diamater: 30,000 miles Orbit: 2.8 billion miles Day: 18-22 Earth hours Year: 165 Earth years 2 Moons Nereid Triton Pluto Diamater: 1,900 miles Orbit: 3.7 billion miles Day: 6.4 Earth days Year: 248 Earth years 1 Moon: Charon