| List of Moons in the Solar System | |||||
|---|---|---|---|---|---|
| Moon | Discovered | Discoverer | Distance from Planet (km) | Diameter (km) | Orbital Period (days) |
| Earth: 1 Moon | |||||
| Moon (Luna) | - | - | 384,400 | 3,475 | 27.322 |
| Mars: 2 Moons | |||||
| Deimos | 1877 | Asaph Hall | 23,460 | 12.4 | 1.2624 |
| Phobos | 1877 | Asaph Hall | 9,270 | 22.5 | 0.3189 |
| Jupiter: 67 Moons | |||||
| Adrastea | 1979 | Jewitt & Danielson | 128,980 | 26 X 16 | 0.298 |
| Aitne | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,547,000 | 3 | 736 |
| Amalthea | 1892 | E. Barnard | 181,300 | 262 X 134 | 0.498 |
| Ananke | 1951 | S. Nicholson | 21,200,000 | 20 | 631 |
| Aoede | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,807,655 | 4 | 748.8 |
| Arche | 2002 | S. Sheppard | 23,064,000 | 3 | 715.6 |
| Autonoe | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,122,000 | 4 | 753 |
| Callisto | 1610 | Galileo | 1,883,000 | 4,800 | 16.689 |
| Carme | 1938 | S. Nicholson | 22,600,000 | 30 | 692 |
| Callirrhoe | 2000 | Spacewatch Project Minor Planet Center | 24,200,000 | 10 | 774 |
| Carpo | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 17,100,000 | 3 | 456.5 |
| Chaldene | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 23,179,000 | 3.8 | 741 |
| Cyllene | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,000,000 | 2 | 737.8 |
| Elara | 1905 | C. Perrine | 11,737,000 | 80 | 259.65 |
| Erinome | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 23,279,000 | 3.2 | 672 |
| Euanthe | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 21,017,000 | 3 | 622 |
| Eukelade | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,557,295 | 4 | 746.4 |
| Euporie | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 19,394,000 | 2 | 534 |
| Europa | 1610 | Galileo | 670,900 | 3126 | 3.551 |
| Eurydome | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,219,000 | 3 | 713 |
| Ganymede | 1610 | Galileo | 1,070,000 | 5276 | 7.155 |
| Harpalyke | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 21,105,000 | 4.3 | 595 |
| Hegemone | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,514,095 | 3 | 781.6 |
| Helike | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 10,972,830 | 4 | 233.8 |
| Hermippe | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 21,252,000 | 4 | 630 |
| Himalia | 1904 | C. Perrine | 11,480,000 | 170 | 250.57 |
| Io | 1610 | Galileo | 421,600 | 3,629 | 1.769 |
| Iocaste | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 21,269,000 | 5.2 | 657 |
| Isonone | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 23,217,000 | 3.8 | 712 |
| Kale | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,124,000 | 2 | 609 |
| Kallichore | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 22,395,390 | 2 | 683.0 |
| Kalyke | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 23,583,000 | 5.2 | 760 |
| Kore | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,543,000 | 2 | 779.2 |
| Leda | 1974 | C. Kowal | 11,094,000 | 10 | 238.72 |
| Lysithea | 1938 | S. Nicholson | 11,720,000 | 24 | 259.22 |
| Magaclite | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 23,806,000 | 5.4 | 771 |
| Metis | 1979 | S. Sunnott | 127,960 | 40 | 0.295 |
| Mneme | 2003 | Scott S. Sheppard & B. Gladman | 21,069,000 | 2 | 620.04 |
| Orthosie | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 21,168,000 | 2 | 617 |
| Pasiphae | 1908 | P. Melotte | 23,500,000 | 36 | 735 |
| Pasithee | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,029,000 | 2 | 715 |
| Praxidike | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 21,147,000 | 6.8 | 632 |
| Sinope | 1914 | S. Nicholson | 23,700,700 | 28 | 758 |
| Sponde | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,808,000 | 2 | 732 |
| S/2000 J11 | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 12,555,000 | 4.0 | 284.3 |
| S/2003 J2 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 28,570,410 | 2 | 982.5 |
| S/2003 J3 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 18,339,885 | 2 | 504.0 |
| S/2003 J4 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,257,920 | 2 | 723.2 |
| S/2003 J5 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,084,180 | 4 | 759.7 |
| S/2003 J9 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 22,441,680 | 1 | 683.0 |
| S/2003 J10 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 24,249,600 | 2 | 767.0 |
| S/2003 J12 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 19,002,480 | 1 | 533.3 |
| S/2003 J15 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 22,000,000 | 2 | 668.4 |
| S/2003 J16 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 21,000,000 | 2 | 595.4 |
| S/2003 J17 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 22,000,000 | 2 | 690.3 |
| S/2003 J18 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 20,700,000 | 2 | 606.3 |
| S/2003 J19 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 22,800,000 | 2 | 701.3 |
| S/2003 J 23 | 2003 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,563,000 | 2 | 732.44 |
| S/2010 J 1 | 2010 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,314,335 | 2 | 582.22 |
| S/2010 J 2 | 2010 | Veillet | 20,307,150 | 1 | 725.06 |
| S/2011 J 2 | 2011 | S. Sheppard, D. Jewitt, & J. Kleyna | 23,329,710 | 1 | 588.82 |
| S/2011 J 1 | 2011 | Jacobson et al. | 20,155,290 | 1 | 724.34 |
| Taygete | 2000 | S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier | 23,360,000 | 5.0 | 687 |
| Thebe | 1979 | S. Synnott | 221,900 | 100 | 0.675 |
| Thelxinoe | 2003 | Scott S. Sheppard & B. Gladman | 21,162,000 | 2 | 628.09 |
| Themisto | 1975 | C. Kowal & E. Roemer | 7,507,000 | 8 | 130.07 |
| Thyone | 2001 | S. Sheppard, D. Jewitt, & J. Kleyna | 21,312,000 | 4 | 615 |
| Saturn: 62 Moons | |||||
| Aegir | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 20,735,000 | 6 | 1,116.5 |
| Albiorix | 2000 | Gladman et al. | 16,392,000 | 30 | 783 |
| Anthe | 2004 | Cassini Imaging Team | 197,700 | 1 | 1.04 |
| Atlas | 1980 | R. Terrile | 137,640 | 37 X 27 | 0.602 |
| Bebhionn | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 17,119,000 | 6 | 834.8 |
| Bergelmir | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 19,338,000 | 6 | 1,005.9 |
| Bestla | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 20,129,000 | 7 | 1,083.6 |
| Calypso | 1980 | B. Smith | 294,660 | 30 X 16 | 1.888 |
| Daphnis | 2005 | Cassini Imaging Science Team | 136,500 | 7 | 0.594 |
| Dione | 1684 | G. Cassini | 377,400 | 1120 | 2.737 |
| Enceladus | 1789 | W. Herschel | 238,020 | 498 | 1.370 |
| Epimetheus | 1966 | R. Walker | 151,422 | 138 X 110 | 0.694 |
| Erriapo | 2000 | Intl. Team of 8 Astronomers | 17,611,000 | 10 | 871.17 |
| Farbauti | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 20,390,000 | 5 | 1,086.1 |
| Fenrir | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 22,453,000 | 4 | 1,260.3 |
| Fornjot | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 25,108,000 | 6 | 1,490.9 |
| Greip | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 18,206,000 | 6 | 921.2 |
| Hati | 2005 | D. Jewitt, S. Sheppard, J. Kleyna | 19,856,000 | 6 | 1,038.7 |
| Helene | 1980 | Laques & Lecacheux | 377,400 | 36 X 28 | 2.737 |
| Hyperion | 1848 | W. Bond | 1,481,000 | 360 X 226 | 21.277 |
| Hyrokkin | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 18,437,000 | 8 | 931.8 |
| Iapetus | 1671 | G. Cassini | 3,561,300 | 1436 | 79.3215 |
| Ijiraq | 2000 | Intl. Team of 8 Astronomers | 11,440,000 | 14 | 451.48 |
| Janus | 1966 | A. Dollfus | 151,472 | 190 X 154 | 0.695 |
| Jarnsaxa | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 18,811,000 | 6 | 964.7 |
| Kari | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 22,118,000 | 7 | 1,233.6 |
| Kiviuq | 2000 | Intl. Team of 8 Astronomers | 11,365,000 | 17 | 449.22 |
| Loge | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 23,065,000 | 6 | 1,312.0 |
| Methone | 2004 | C.C. Porco et al./Cassini | 194,000 | 3 | 1.01 |
| Mimas | 1789 | W. Herschel | 185,520 | 398 | 0.942 |
| Mundilfari | 2000 | Intl. Team of 8 Astronomers | 18,709,000 | 7 | 951.38 |
| Narvi | 2003 | Scott S. Sheppard, David Jewitt, and Jan Kleyna | 18,719,000 | 8 | 956.2 |
| Paaliaq | 2000 | Intl. Team of 8 Astronomers | 15,199,000 | 25 | 686.92 |
| Pallene | 2004 | C.C. Porco et al./Cassini | 211,000 | 4 | 1.14 |
| Pan | 1990 | M. Showalter | 133,630 | 19.32 | 0.5750 |
| Pandora | 1980 | S. Collins | 141,700 | 110 X 62 | 0.629 |
| Phoebe | 1898 | W. Pickering | 12,952,000 | 220 | 550.48 |
| Polydeuces | 2004 | C.C. Porco et al./Cassini | 377,400 | 4 | 2.74 |
| Prometheus | 1980 | S. Collins | 139,350 | 148 X 68 | 0.613 |
| Rhea | 1672 | G. Cassini | 527,040 | 1528 | 4.518 |
| Siarnaq | 2000 | Intl. Team of 8 Astronomers | 18,160,000 | 45 | 893.07 |
| Skathi | 2000 | Intl. Team of 8 Astronomers | 15,645,000 | 8 | 728.93 |
| Skoll | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 17,665,000 | 6 | 878.3 |
| Surtur | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 22,707,000 | 6 | 1,297.7 |
| Suttungr | 2000 | Gladman et al. | 19,470,000 | 7 | 1016.8 |
| S/2004 S07 | 2004 | D. Jewitt, S. Sheppard, J. Kleyna | 19,800,000 | 6 | 1,103 |
| S/2004 S12 | 2004 | D. Jewitt, S. Sheppard, J. Kleyna | 19,650,000 | 5 | 1,048 |
| S/2004 S13 | 2004 | D. Jewitt, S. Sheppard, J. Kleyna | 18,450,000 | 6 | 906 |
| S/2004 S17 | 2004 | D. Jewitt, S. Sheppard, J. Kleyna | 18,600,000 | 4 | 986 |
| S/2006 S1 | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 18,981,135 | 6 | 970 |
| S/2006 S3 | 2006 | S. Sheppard, D. Jewitt, J. Kleyna | 21,132,000 | 6 | 1,142 |
| S/2007 S2 | 2007 | S. Sheppard, D. Jewitt, J. Kleyna | 16,560,000 | 6 | 800 |
| S/2007 S3 | 2007 | S. Sheppard, D. Jewitt, J. Kleyna | 20,518,500 | 5 | 1,100 |
| Tarqeq | 2007 | S. Sheppard, D. Jewitt, J. Kleyna | 18,009,000 | 7 | 887.5 |
| Tarvos | 2000 | Intl. Team of 8 Astronomers | 18,239,000 | 16 | 925.70 |
| Telesto | 1980 | B. Smith | 294,660 | 30 X 16 | 1.888 |
| Tethys | 1684 | G. Cassini | 294,660 | 1060 | 1.888 |
| Thrymr | 2000 | Intl. Team of 8 Astronomers | 20,470,000 | 7 | 1088.89 |
| Titan | 1655 | C. Huygens | 1,221,850 | 5150 | 15.945 |
| Ymir | 2000 | Intl. Team of 8 Astronomers | 23,096,000 | 20 | 1312.37 |
| Uranus: 27 Moons | |||||
| Ariel | 1851 | W. Lassell | 191,240 | 1160 | 2.520 |
| Belinda | 1986 | Voyager 2 | 75,260 | 66 | 0.624 |
| Bianca | 1986 | Voyager 2 | 75,260 | 42 | 0.433 |
| Caliban | 1997 | Gladman, Nicholson, Burns, & Kavelaars | 7,200,000 | 80 | 579.5 |
| Cordelia | 1986 | Voyager 2 | 49,750 | 26 | 0.335 |
| Cressida | 1986 | Voyager 2 | 61,770 | 62 | 0.464 |
| Cupid | 2003 | M. Showalter & J. Lissauer | 74,800 | 12 | 0.618 |
| Desdemona | 1986 | Voyager 2 | 62,660 | 54 | 0.474 |
| Ferdinand | 2001 | M. Holman & B. Gladman et al | 20,901,000 | 21 | 2,823.4 |
| Francisco | 2001 | M. Holman & B. Gladman et al | 4,276,000 | 22 | 266.6 |
| Juliet | 1986 | Voyager 2 | 64,360 | 84 | 0.493 |
| Mab | 2003 | M. Showalter & J. Lissauer | 97,734 | 16 | 0.923 |
| Margaret | 2003 | S. Sheppard | 14,688,700 | 11 | 1,694.8 |
| Miranda | 1948 | G. Kuiper | 129,780 | 472 | 1.414 |
| Oberon | 1787 | W. Herschel | 582,600 | 1526 | 13.463 |
| Ophelia | 1986 | Voyager 2 | 53,440 | 30.4 | 0.3764 |
| Perdita | 1986 | E. Karkoschka/Voyager 2 | 76,420 | 20 | 0.638 |
| Portia | 1986 | Voyager 2 | 66,085 | 108 | 0.513 |
| Prospero | 1999 | Kavelaars, Gladman, Holman et al | 16,256,000 | 30 | 5.346 |
| Puck | 1985 | Voyager 2 | 86,010 | 154 | 0.762 |
| Rosalind | 1986 | Voyager 2 | 69,941 | 54 | 0.558 |
| Setebos | 1999 | Kavelaars, Gladman, Holman et al | 17,418,000 | 47 | 2,234.8 |
| Stephano | 1999 | Kavelaars, Gladman, Holman et al | 8,004,000 | 32 | 677.4 |
| Sycorax | 1997 | Gladman, Nicholson, Burns, & Kavelaars | 12,200,000 | 160 | 1283.39 |
| Titania | 1787 | W. Herschel | 435,840 | 1,578 | 8.706 |
| Trinculo | 2001 | M. Holman, J. Kavelaars & D. Milisavljevic | 8,578,000 | 10 | 759.0 |
| Umbriel | 1851 | W. Lassel | 265,970 | 1190 | 4.144 |
| Neptune: 14 Moons | |||||
| Despina | 1989 | Voyager 2 | 62,000 | 160 | 0.40 |
| Galatea | 1989 | Voyager 2 | 52,500 | 140 | 0.33 |
| Halimede | 2002 | M. Holman & J.J. Kavelaars | 15,686,000 | 60 | 1,874.83 |
| Larissa | 1989 | Voyager 2 | 73,600 | 200 | 0.56 |
| Laomedeia | 2002 | M. Holman & J.J. Kavelaars | 22,613,200 | 38 | 2,980.4 |
| Naiad | 1989 | Voyager 2 | 48,200 | 50 | 0.30 |
| Nereid | 1949 | G. Kuiper | 5,513,400 | 340 | 360.16 |
| Neso | 2002 | Holman & Gladman et al | 47,279,670 | 60 | 9,007.1 |
| Proteus | 1989 | Voyager 2 | 117,600 | 420 | 1.12 |
| Psamathe | 2003 | D. Jewitt, J. Kleyna & S. Sheppard | 46,738,000 | 38 | 9,136.11 |
| Sao | 2002 | M. Holman & J.J. Kavelaars | 22,337,190 | 38 | 2,925.6 |
| Thalassa | 1989 | Voyager 2 | 50,000 | 90 | 0.31 |
| Triton | 1846 | W. Lassel | 354,800 | 2705 | 5.877 |
| S/2004 N 1 | 2013 | Showalter, M. R. et al. | 105,300 | 16–20 | 0.936 |
| Pluto: 5 Moons | |||||
| Charon | 1978 | J. Christy | 19,571 | 1,207 | 6.387 |
| Nix | 2005 | H.A. Weaver, S.A. Stern, et al. | 48,675 | 44-130 | 24.856 |
| Hydra | 2005 | H.A. Weaver, S.A. Stern, et al. | 64,780 | 44-130 | 38.206 |
| Kerberos | 2011 | Showalter, M. R. et al. | 59,000 | 13-34 | 32.1 |
| Styx | 2012 | Showalter, M. R. et al. | 42,000 | 10-25 | 20.2 |
| Eris: 1 Moon | |||||
| Dysnomia | 2005 | M. Brown, M. van Dam, A. Bouches, D. Le Mignant | 30,000-36,000 | ~300 | ~14 |
| Haumea: 2 Moons | |||||
| Namaka | 2005 | H.A. Weaver, S.A. Stern, et al. | ~39,000 | ~170 | 34.7 |
| Hi'iaka | 2005 | H.A. Weaver, S.A. Stern, et al. | 49,500 | ~310 | 49.12 |
Moons in the Solar System
There are currently 181 known moons in our solar system orbiting the various planets and dwarf planets. Of the 13 planets and dwarf planets, there are four which don't have any moons. These are the planets Mercury and Venus, and the dwarf planets Ceres and Makemake.