Distance Radius Mass Name Orbits (10^3 km) (km) (kg) ------------------------------------------------ Sun - - 695,000 1.989e+30 Jupiter Sun 778,330 71,492 1.9e+27 Saturn Sun 1,429,400 60,268 5.688e+26 Uranus Sun 2,870,990 25,559 8.686e+25 Neptune Sun 4,504,300 24,746 1.024e+26 Earth Sun 149,600 6,378 5.976e+24 Venus Sun 108,200 6,052 4.869e+24 Mars Sun 227,940 3,397 6.421e+23 Ganymede Jupiter 1,070 2,631 1.48e+23 Titan Saturn 1,222 2,575 1.35e+23 Mercury Sun 57,910 2,440 3.303e+23 Callisto Jupiter 1,883 2,400 1.08e+23 Io Jupiter 422 1,815 8.94e+22 Moon Earth 384 1,737 7.349e+22 Europa Jupiter 671 1,569 4.8e+22 Triton Neptune 355 1,350 2.14e+22 Pluto Sun 5,913,520 1,160 1.29e+22
Distance Radius Mass Name Orbits (10^3 km) (km) (kg) ------------------------------------------------------- Deimos Mars 23.46 7.5x6.1x5.5 1.8e+15 Leda Jupiter 11,094 8 5.68e+15 Pan Saturn 133.583 9.7 ? Adrastea Jupiter 128.971 12.5x10x7.5 1.91e+16 Cordelia Uranus 49.750 13 ? Phobos Mars 9.380 13.5x10.8x9.4 1.08e+16 Ananke Jupiter 21,200 15 3.82e+16 Ophelia Uranus 53.76 16 ? Calypso Saturn 294.66 17x11x11 ? Telesto Saturn 294.66 17x14x13 ? Sinope Jupiter 23,700 18 7.77e+16 Lysithea Jupiter 11,720 18 7.77e+16 Helene Saturn 377.40 18x16x15 ? Atlas Saturn 137.64 20x15 ? Metis Jupiter 127.969 20 9.56e+16 Carme Jupiter 22,600 20 9.56e+16
Radius Name Orbits Vo (km) Albedo ------------------------------------------- Sun - -26.8 695,000 - Moon Earth -12.74 1,737 0.12 Venus Sun -4.4 6,052 0.65 Jupiter Sun -2.70 71,492 0.52 Mars Sun -2.01 3,397 0.15 Mercury Sun -1.9 2,440 0.10 Saturn Sun 0.67 60,268 0.47 Ganymede Jupiter 4.61 2,631 0.42 Io Jupiter 5.02 1,815 0.61 Europa Jupiter 5.29 1,569 0.64 Uranus Sun 5.52 25,559 0.51 Callisto Jupiter 5.65 2,400 0.20From time to time, a comet will pass close enough to the Sun to develope a coma that becomes visible to the naked eye.
Radius Name Orbits Vo (km) Albedo ---------------------------------------- Naiad Neptune 24.7 29 0.06 Cordelia Uranus 24.1 13 0.07 Ophelia Uranus 23.8 16 0.07 Thalassa Neptune 23.8 40 0.06 Bianca Uranus 23.0 22 0.07 Despina Neptune 22.6 74 0.06 Desdemona Uranus 22.5 29 0.07 Rosalind Uranus 22.5 27 0.07 Galatea Neptune 22.3 79 0.06 Cressida Uranus 22.2 33 0.07 Belinda Uranus 22.1 34 0.07 Larissa Neptune 22.0 104x89 0.06 Juliet Uranus 21.5 42 0.07 Portia Uranus 21.0 55 0.07 Proteus Neptune 20.3 200 0.06 Puck Uranus 20.2 77 0.07 Leda Jupiter 20.2 8 ?
Radius Mass Density Name Orbits (km) (kg) (g/cm^3) ------------------------------------------------- Earth Sun 6,378 5.976e+24 5.515 Mercury Sun 2,440 3.303e+23 5.42 Venus Sun 6,052 4.869e+24 5.25 Adrastea Jupiter 13x10x8 1.91e+16 4.5 Mars Sun 3,397 6.421e+23 3.94 Io Jupiter 1,815 8.94e+22 3.55 Moon Earth 1,737 7.349e+22 3.34 Elara Jupiter 38 7.77e+17 3.3 Sinope Jupiter 18 7.77e+16 3.1 Lysithea Jupiter 18 7.77e+16 3.1 Europa Jupiter 1,569 4.8e+22 3.01
Distance Radius Name Orbits (km) (km) Eccentricity ------------------------------------------------ Nereid Neptune 5,513.40 170 0.7512 Pasiphae Jupiter 23,500 25 0.378 Sinope Jupiter 23,700 18 0.275 Pluto Sun 5,913,520 1,160 0.2482 Elara Jupiter 11,737 38 0.2072 Carme Jupiter 22,600 20 0.2068 Mercury Sun 57,910 2,439 0.2056
------------------------------------------------------- Name Orbits Vo Distance Density Albd ------------------------------------------------------- Enceladus Saturn 11.7 238.02 1.24 0.99 Pandora Saturn 16.5 141.70 0.7* 0.9 Atlas Saturn 18.0 137.64 ? 0.9 Tethys Saturn 10.2 294.66 1.21 0.9 Janus Saturn 14.5 151.472 0.67* 0.8 Epimetheus Saturn 15.7 151.422 0.7* 0.8 Dione Saturn 10.4 377.4 1.43 0.7 Rhea Saturn 9.7 527.04 1.33 0.7 Helene Saturn 18.5 377.40 ? 0.7 Triton Neptune 13.47 354.80 2.07 0.7