Name # Orbits Distance(000km) Period(days) Discoverer Date Radius(km) ImageIndex --------- ---- ------- -------- -------- ---------- ------ ------- ---------- Sun - - - - - - 695000 24 Mercury I Sun 57910 87.97 - - 2440 14 Venus II Sun 108200 224.70 - - 6052 1 Earth III Sun 149600 365.26 - - 6378 3 Mars IV Sun 227940 686.98 - - 3397 2 Jupiter V Sun 778330 4332.71 - - 71492 0 Saturn VI Sun 1429400 10759.50 - - 60268 23 Uranus VII Sun 2870990 30685.00 Herschel 1781 25559 31 Neptune VIII Sun 4504300 60190.00 Adams 1846 24766 18 Pluto IX Sun 5913520 90800 Tombaugh 1930 1137 21 Moon I Earth 384 27.32 - - 1738 17 Phobos I Mars 9 0.32 Hall 1877 11 20 Deimos II Mars 23 1.26 Hall 1877 6 7 Metis XVI Jupiter 128 0.29 Synnott 1979 20 30 Adrastea XV Jupiter 129 0.30 Jewitt 1979 10 30 Amalthea V Jupiter 181 0.50 Barnard 1892 94 4 Thebe XIV Jupiter 222 0.67 Synnott 1979 50 30 Io I Jupiter 422 1.77 Galileo 1610 1821 12 Europa II Jupiter 671 3.55 Galileo 1610 1565 10 Ganymede III Jupiter 1070 7.15 Galileo 1610 2634 11 Callisto IV Jupiter 1883 16.69 Galileo 1610 2403 6 Leda XIII Jupiter 11094 238.72 Kowal 1974 8 30 Himalia VI Jupiter 11480 250.57 Perrine 1904 93 30 Lysithea X Jupiter 11720 259.22 Nicholson 1938 18 30 Elara VII Jupiter 11737 259.65 Perrine 1905 38 30 Ananke XII Jupiter 21200 -631 Nicholson 1951 15 30 Carme XI Jupiter 22600 -692 Nicholson 1938 20 30 Pasiphae VIII Jupiter 23500 -735 Melotte 1908 25 30 Sinope IX Jupiter 23700 -758 Nicholson 1914 18 30 Pan XVIII Saturn 134 0.58 Showalter 1990 10 30 Atlas XV Saturn 138 0.60 Terrile 1980 15 30 Prometheus XVI Saturn 139 0.61 Collins 1980 46 30 Pandora XVII Saturn 142 0.63 Collins 1980 42 30 Epimetheus XI Saturn 151 0.69 Walker 1980 57 30 Janus X Saturn 151 0.69 Dollfus 1966 89 30 Mimas I Saturn 186 0.94 Herschel 1789 199 15 Enceladus II Saturn 238 1.37 Herschel 1789 249 9 Tethys III Saturn 295 1.89 Cassini 1684 530 25 Telesto XIII Saturn 295 1.89 Smith 1980 15 30 Calypso XIV Saturn 295 1.89 Pascu 1980 13 30 Dione IV Saturn 377 2.74 Cassini 1684 560 8 Helene XII Saturn 377 2.74 Laques 1980 16 30 Rhea V Saturn 527 4.52 Cassini 1672 764 22 Titan VI Saturn 1222 15.95 Huygens 1655 2575 26 Hyperion VII Saturn 1481 21.28 Bond 1848 143 30 Iapetus VIII Saturn 3561 79.33 Cassini 1671 718 13 Phoebe IX Saturn 12952 -550.48 Pickering 1898 110 30 Cordelia VI Uranus 50 0.34 "Voyager 2" 1986 13 30 Ophelia VII Uranus 54 0.38 "Voyager 2" 1986 16 30 Bianca VIII Uranus 59 0.43 "Voyager 2" 1986 22 30 Cressida IX Uranus 62 0.46 "Voyager 2" 1986 33 30 Desdemona X Uranus 63 0.47 "Voyager 2" 1986 29 30 Juliet XI Uranus 64 0.49 "Voyager 2" 1986 42 30 Portia XII Uranus 66 0.51 "Voyager 2" 1986 55 30 Rosalind XIII Uranus 70 0.56 "Voyager 2" 1986 27 30 Belinda XIV Uranus 75 0.62 "Voyager 2" 1986 34 30 1986U10 ? Uranus 76 0.64 Karkoschka 1999 20 30 Puck XV Uranus 86 0.76 "Voyager 2" 1985 77 30 Miranda V Uranus 130 1.41 Kuiper 1948 236 16 Ariel I Uranus 191 2.52 Lassell 1851 581 5 Umbriel II Uranus 266 4.14 Lassell 1851 585 29 Titania III Uranus 436 8.71 Herschel 1787 789 27 Oberon IV Uranus 583 13.46 Herschel 1787 761 19 Caliban XVI Uranus 7169 -580 Gladman 1997 40 30 Stephano XX Uranus 7948 -674 Gladman 1999 15 30 Sycorax XVII Uranus 12213 -1289 Nicholson 1997 80 30 Prospero XVIII Uranus 16568 -2019 Holman 1999 20 30 Setebos XIX Uranus 17681 -2239 Kavelaars 1999 20 30 Naiad III Neptune 48 0.29 "Voyager 2" 1989 29 30 Thalassa IV Neptune 50 0.31 "Voyager 2" 1989 40 30 Despina V Neptune 53 0.33 "Voyager 2" 1989 74 30 Galatea VI Neptune 62 0.43 "Voyager 2" 1989 79 30 Larissa VII Neptune 74 0.55 Reitsema 1989 96 30 Proteus VIII Neptune 118 1.12 "Voyager 2" 1989 209 30 Triton I Neptune 355 -5.88 Lassell 1846 1353 28 Nereid II Neptune 5513 360.13 Kuiper 1949 170 30 Charon I Pluto 20 6.39 Christy 1978 586 30