List of natural Satellites - wikipedia List of natural Satellites This article is about the moons of planets and dwarf planets. For other asteroid or minor - planet moons, see Minor - planet moon. Solar System Objects by orbit by size by discovery date Lists Gravitationally - rounded ( equilibrium ) objects Possible dwarf planets Moons ( natural satellites ) Minor planets Comets Asteroids Solar System portal Star portal The Solar System 's planets and officially recognized dwarf planets are known to be orbited by 184 natural satellites, or moons. 19 moons in the Solar System are large enough to be gravitationally rounded, and thus would be considered planets or dwarf planets if they were in direct orbit around the Sun. Moons are classed in two separate categories according to their orbits : regular moons, which have prograde orbits ( they orbit in the direction of their planets ' rotation ) and lie close to the plane of their equators, and irregular moons, whose orbits can be pro - or retrograde ( against the direction of their planets ' rotation ) and often lie at extreme angles to their planets ' equators. Irregular moons are probably minor planets that have been captured from surrounding space. Most irregular moons are less than 10 kilometres ( 6.2 mi ) in diameter. The earliest published discovery of a moon other than the Earth 's was by Galileo Galilei, who discovered the four Galilean moons orbiting Jupiter in 1610. Over the following three centuries only a few more moons were discovered. Missions to other planets in the 1970s, most notably the Voyager 1 and 2 missions, saw a surge in the number of moons detected, and observations since the year 2000, using mostly large, ground - based optical telescopes, have discovered many more, all of which are irregular. Contents 1 Moons by primary 2 List 3 References Moons by primary Some moons, minor planets and comets of the Solar System to scale Selected moons, with Earth to scale. Nineteen moons are large enough to be round, and one, Titan, has a substantial atmosphere. The number of moons discovered in each year Mercury, the smallest and innermost planet, has no moons, or at least none that can be detected to a diameter of 1.6 km ( 1.0 mi ). For a very short time in 1974, Mercury was thought to have a moon. Venus also has no moons, though reports of a moon around Venus have circulated since the 17th century. Earth has one Moon, the largest moon of any rocky planet in the Solar System. Earth also has at least two co-orbitals : the asteroids 3753 Cruithne and 2002 AA ; however, since they do not orbit Earth, they are not considered moons. ( See Other moons of Earth and Quasi-satellite. ) Mars has two known moons, Phobos and Deimos ( `` fear '' and `` dread '', after attendants of Ares, the Greek god of war, equivalent to the Roman Mars ). Searches for more satellites have been unsuccessful, putting the maximum radius of any other satellites at 90 m ( 100 yd ). Jupiter has 69 moons with known orbits, of which 60 have confirmed orbits and have thus received permanent designations ; of these, 51 have been named. Its eight regular moons are grouped into the planet - sized Galilean moons and the far smaller Amalthea group. They are named after lovers of Zeus, the Greek equivalent of Jupiter. Its 61 known irregular moons are organized into two categories : prograde and retrograde. The prograde satellites consist of the Himalia group and two others in groups of one. The retrograde moons are grouped into the Carme, Ananke and Pasiphae groups, as well as some isolated moons. Saturn has 62 moons with known orbits ; 53 of them have names, and these are the ones with confirmed orbits. Most of them are quite small. Seven moons are large enough to be in hydrostatic equilibrium, including Titan, the second largest moon in the Solar System. Including these large moons, 24 of Saturn 's moons are regular, and traditionally named after Titans or other figures associated with the mythological Saturn. The remaining 38, all small, are irregular, and classified by their orbital characteristics into Inuit, Norse, and Gallic groups, and their names are chosen from the corresponding mythologies. The rings of Saturn are made up of icy objects ranging in size from one centimetre to hundreds of metres, each of which is on its own orbit about the planet. Thus a precise number of Saturnian moons can not be given, as there is no objective boundary between the countless small anonymous objects that form Saturn 's ring system and the larger objects that have been named as moons. At least 150 `` moonlets '' embedded in the rings have been detected by the disturbance they create in the surrounding ring material, though this is thought to be only a small sample of the total population of such objects. Uranus has 27 named moons, five of which are massive enough to have achieved hydrostatic equilibrium. There are another 13 inner moons that orbit within Uranus 's ring system, and another nine outer irregular moons. Unlike most planetary moons, which are named from antiquity, all the moons of Uranus are named after characters from the works of Shakespeare and Alexander Pope 's work The Rape of the Lock. Neptune has 14 moons ( one of which is unnamed ) ; the largest, Triton, accounts for more than 99.5 percent of all the mass orbiting the planet. Triton is large enough to have achieved hydrostatic equilibrium, but, uniquely for a large moon, has a retrograde orbit, suggesting it was captured. Neptune also has six known inner regular satellites, and six outer irregular satellites. Pluto, a dwarf planet, has five moons. Its largest moon Charon, named after the ferryman who took souls across the River Styx, is more than half as large as Pluto itself, and large enough to orbit a point outside Pluto 's surface. In effect, each orbits the other, forming a binary system informally referred to as a double - dwarf - planet. Pluto 's four other moons, Nix, Hydra, Kerberos and Styx are far smaller and orbit the Pluto -- Charon system. Among the other dwarf planets, Ceres has no known moons. It is 90 percent certain that Ceres has no moons larger than 1 km in size, assuming that they would have the same albedo as Ceres itself. Haumea has two moons, Hi'iaka and Namaka, of radii ~ 195 and ~ 100 km, respectively. Makemake has one moon, discovered in April 2016. A satellite having 1 % Makemake 's brightness would have been detected if it had been located at an angular distance from Makemake farther than 0.4 arcseconds ( 0.0001 degrees ). Eris has one known moon, Dysnomia. Accurately determining its size is difficult : one indicative estimate of its radius is 7005257000000000000 ♠ 257 ± 110 km, but on some assumptions could be as high as 7005342000000000000 ♠ 342 ± 25 km. The Kuiper belt object 90482 Orcus, believed to be a dwarf planet, was found in 2005 to have a natural satellite, later named Vanth. As of October 2009, 190 asteroid moons and 63 trans - Neptunian moons had been discovered. Summary -- number of moons Planet Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Number of moons 0 0 69 62 27 14 Dwarf planet Ceres Pluto Haumea Makemake Eris Number of moons 0 5 List This is a list of the recognized moons of the planets and of the largest dwarf planets of the Solar System. The 19 moons that are large enough to have been rounded by their own gravity are listed in bold. The seven largest moons, which are larger than any of the known dwarf planets, are listed in bold and italic. Sidereal period differs from semi-major axis because it depends on the mass of the primary as well as the satellite 's distance from it. Satellite of Earth Satellites of Saturn Satellites of Pluto Satellites of Mars Satellites of Uranus Satellites of Haumea Satellites of Jupiter Satellites of Neptune Satellite of Makemake Satellite of Eris Image Numeral Name Mean radius ( km ) Semi-major axis ( km ) Sidereal period ( d ) ( r = retrograde ) Discovery year Discovered by Notes Ref ( s ) Planet Moon 173710 ! 1737.10 384,399 27.321582 0 ! Prehistoric -- Synchronous rotation Earth Phobos 00111 ! 11.1 ± 0.15 9,380 0.319 1877 Hall Mars II Deimos 00062 ! 6.2 ± 0.18 23,460 1.262 1877 Hall Mars Io 18181 ! 1818.1 ± 0.1 421,800 1.769 1610 Galileo Main - group moon ( Galilean ) Jupiter II Europa 15607 ! 1560.7 ± 0.7 671,100 3.551 1610 Galileo Main - group moon ( Galilean ) Jupiter III Ganymede 26341 ! 2634.1 ± 0.3 1,070,400 7.155 1610 Galileo Main - group moon ( Galilean ) Jupiter IV Callisto 24084 ! 2408.4 ± 0.3 1,882,700 16.69 1610 Galileo Main - group moon ( Galilean ) Jupiter V Amalthea 008345 ! 83.45 ± 2.4 181,400 0.498 1892 Barnard Inner moon ( Amalthea ) Jupiter VI Himalia 0067 ! 67 ± 10 11,461,000 250.56 1904 Perrine Prograde irregular ( Himalia ) Jupiter VII Elara 0043 ! 43 11,741,000 259.64 1905 Perrine Prograde irregular ( Himalia ) Jupiter VIII Pasiphae 0030 ! 30 23,624,000 743.63 ( r ) 1908 Melotte Retrograde irregular ( Pasiphae ) Jupiter IX Sinope 0019 ! 19 23,939,000 758.90 ( r ) 1914 Nicholson Retrograde irregular ( Pasiphae ) Jupiter X Lysithea 0018 ! 18 11,717,000 259.20 1938 Nicholson Prograde irregular ( Himalia ) Jupiter XI Carme 0023 ! 23 23,404,000 734.17 ( r ) 1938 Nicholson Retrograde irregular ( Carme ) Jupiter XII Ananke 0014 ! 14 21,276,000 629.77 ( r ) 1951 Nicholson Retrograde irregular ( Ananke ) Jupiter XIII Leda 0010 ! 10 11,165,000 240.92 Kowal Prograde irregular ( Himalia ) Jupiter XIV Thebe 00493 ! 49.3 ± 2.0 221,900 0.675 1979 Synnott ( Voyager 1 ) Inner moon ( Amalthea ) Jupiter XV Adrastea 00082 ! 8.2 ± 2.0 129,000 0.298 1979 Jewitt, Danielson ( Voyager 1 ) Inner moon ( Amalthea ) Jupiter XVI Metis 00215 ! 21.5 ± 2.0 128,000 0.295 1979 Synnott ( Voyager 1 ) Inner moon ( Amalthea ) Jupiter XVII Callirrhoe 00043 ! 4.3 24,103,000 758.77 ( r ) 2000 Scotti, Spahr, McMillan, Larsen, Montani, Gleason, Gehrels Retrograde irregular ( Pasiphae ) Jupiter XVIII Themisto 00040 ! 4.0 7,284,000 130.02 1975 / 2000 Kowal and Roemer ( original ) ; Sheppard, Jewitt, Fernández, Magnier ( rediscovery ) Prograde irregular ( Themisto ) Jupiter XIX Megaclite 00027 ! 2.7 23,493,000 752.86 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Pasiphae ) Jupiter XX Taygete 00025 ! 2.5 23,280,000 732.41 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Carme ) Jupiter XXI Chaldene 00019 ! 1.9 23,100,000 723.72 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Carme ) Jupiter XXII Harpalyke 00022 ! 2.2 20,858,000 623.32 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Ananke ) Jupiter XXIII Kalyke 00026 ! 2.6 23,483,000 742.06 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Carme ) Jupiter XXIV Iocaste 00026 ! 2.6 21,060,000 631.60 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Ananke ) Jupiter XXV Erinome 00016 ! 1.6 23,196,000 728.46 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Carme ) Jupiter XXVI Isonoe 00019 ! 1.9 23,155,000 726.23 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Carme ) Jupiter XXVII Praxidike 00034 ! 3.4 20,908,000 625.39 ( r ) 2000 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans Retrograde irregular ( Ananke ) Jupiter XXVIII Autonoe 00020 ! 2.0 24,046,000 760.95 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter XXIX Thyone 00020 ! 2.0 20,939,000 627.21 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Ananke ) Jupiter XXX Hermippe 00020 ! 2.0 21,131,000 633.9 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Ananke ) Jupiter XXXI Aitne 00015 ! 1.5 23,229,000 730.18 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Carme ) Jupiter XXXII Eurydome 00015 ! 1.5 22,865,000 717.33 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter XXXIII Euanthe 00015 ! 1.5 20,797,000 620.49 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Ananke ) Jupiter XXXIV Euporie 00010 ! 1.0 19,304,000 550.74 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter XXXV Orthosie 00010 ! 1.0 20,720,000 622.56 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter XXXVI Sponde 00010 ! 1.0 23,487,000 748.34 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter XXXVII Kale 00010 ! 1.0 23,217,000 729.47 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Carme ) Jupiter XXXVIII Pasithee 00010 ! 1.0 23,004,000 719.44 ( r ) 2001 Sheppard, Jewitt, Kleyna Retrograde irregular ( Carme ) Jupiter XXXIX Hegemone 00015 ! 1.5 23,577,000 739.88 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular ( Pasiphae ) Jupiter XL Mneme 00010 ! 1.0 21,035,000 620.04 ( r ) 2003 Gladman, Allen Retrograde irregular ( Ananke ) Jupiter XLI Aoede 00020 ! 2.0 23,980,000 761.50 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular ( Pasiphae ) Jupiter XLII Thelxinoe 00010 ! 1.0 21,164,000 628.09 ( r ) 2003 Sheppard, Jewitt, Kleyna, Gladman, Kavelaars, Petit, Allen Retrograde irregular ( Ananke ) Jupiter XLIII Arche 00015 ! 1.5 23,355,000 731.95 ( r ) 2002 Sheppard, Meech, Hsieh, Tholen, Tonry Retrograde irregular ( Carme ) Jupiter XLIV Kallichore 00010 ! 1.0 23,288,000 728.73 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular ( Carme ) Jupiter XLV Helike 00020 ! 2.0 21,069,000 626.32 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular ( Pasiphae ) Jupiter XLVI Carpo 00015 ! 1.5 17,058,000 456.30 2003 Sheppard, Gladman, Kavelaars, Petit, Allen, Jewitt, Kleyna Prograde irregular ( Carpo ) Jupiter XLVII Eukelade 00020 ! 2.0 23,328,000 730.47 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular ( Carme ) Jupiter XLVIII Cyllene 00010 ! 1.0 23,809,000 752 ( r ) 2003 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter XLIX Kore 00010 ! 1.0 24,543,000 779.17 ( r ) 2003 Sheppard, Jewitt, Kleyna Retrograde irregular ( Pasiphae ) Jupiter Herse 00010 ! 1.0 22,983,000 714.51 ( r ) 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen Retrograde irregular ( Carme ) Jupiter LI S / 2010 J 1 00010 ! 1.0 23,314,335 723.2 ( r ) Jacobson, Brozović, Gladman, Alexandersen Retrograde irregular ( Carme ) Jupiter LII S / 2010 J 2 00005 ! 0.5 20,307,150 588.1 ( r ) Veillet Retrograde irregular ( Ananke ) Jupiter LIII Dia 00020 ! 2.0 12,570,000 287.93 2001 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Prograde irregular ( Himalia ) Jupiter LIV S / 2016 J 1 00030 ! 3.0 20,595,480 602.7 ( r ) 2016 Sheppard Retrograde irregular ( Pasiphae ) Jupiter LV S / 2003 J 18 00010 ! 1.0 20,426,000 596.58 ( r ) 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen Retrograde irregular ( Pasiphae ) Jupiter LVI S / 2011 J 2 00005 ! 0.5 23,329,710 726.8 ( r ) 2011 Sheppard Retrograde irregular ( Pasiphae ) Jupiter LVII S / 2003 J 5 00020 ! 2.0 23,498,000 738.74 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular ( Carme ) Jupiter LVIII S / 2003 J 15 00010 ! 1.0 22,630,000 689.77 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular ( Pasiphae ) Jupiter LIX S / 2017 J 1 00020 ! 2.0 23,483,978 734.2 ( r ) 2017 Sheppard Retrograde irregular ( Pasiphae ) Jupiter LX S / 2003 J 3 00010 ! 1.0 20,224,000 583.88 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular ( Ananke ? ) Jupiter -- S / 2003 J 2 00010 ! 1.0 28,455,000 981.55 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular Jupiter -- S / 2003 J 4 00010 ! 1.0 23,933,000 755.26 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Retrograde irregular ( Pasiphae ? ) Jupiter -- S / 2003 J 9 00005 ! 0.5 23,388,000 733.30 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular ( Carme ? ) Jupiter -- S / 2003 J 10 00010 ! 1.0 23,044,000 716.25 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular ( Carme ? ) Jupiter -- S / 2003 J 12 00005 ! 0.5 17,833,000 489.72 ( r ) 2003 Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular Jupiter -- S / 2003 J 16 00010 ! 1.0 20,956,000 616.33 ( r ) 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen Retrograde irregular ( Ananke ) Jupiter -- S / 2003 J 19 00010 ! 1.0 23,535,000 740.43 ( r ) 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen Retrograde irregular ( Carme ? ) Jupiter -- S / 2003 J 23 00010 ! 1.0 23,566,000 732.45 ( r ) Sheppard, Jewitt, Kleyna, Fernández Retrograde irregular ( Pasiphae ? ) Jupiter -- S / 2011 J 1 00005 ! 0.5 20,155,290 580.7 ( r ) 2011 Sheppard Retrograde irregular Jupiter Mimas 01982 ! 198.2 ± 0.4 185,540 0.942 1789 Herschel Main - group moon Saturn II Enceladus 02523 ! 252.3 ± 0.6 238,040 1.370 1789 Herschel Main - group moon Saturn III Tethys 05363 ! 536.3 ± 1.5 294,670 1.888 1684 Cassini Main - group moon ( Sidera Lodoicea ) Saturn IV Dione 05625 ! 562.5 ± 1.5 377,420 2.737 1684 Cassini Main - group moon ( Sidera Lodoicea ) Saturn V Rhea 07645 ! 764.5 ± 2.0 527,070 4.518 1672 Cassini Main - group moon ( Sidera Lodoicea ) Saturn VI Titan 25755 ! 2575.5 ± 2.0 1,221,870 15.95 1655 Huygens Main - group moon Saturn VII Hyperion 01330 ! 133.0 ± 8.0 1,500,880 21.28 1848 W. Bond, G. Bond, and Lassell Main - group moon Saturn VIII Iapetus 07345 ! 734.5 ± 4.0 3,560,840 79.33 1671 Cassini Main - group moon ( Sidera Lodoicea ) Saturn IX Phoebe 01066 ! 106.6 ± 1.1 12,947,780 550.31 ( r ) 1899 Pickering Retrograde irregular ( Norse ) Saturn X Janus 00904 ! 90.4 ± 3.0 151,460 0.695 1966 Dollfus ; Voyager 1 Inner moon ( co-orbital ) Saturn XI Epimetheus 00583 ! 58.3 ± 3.1 151,410 0.694 1980 Walker ; Voyager 1 Inner moon ( co-orbital ) Saturn XII Helene 0016 ! 16 ± 4 377,420 2.737 1980 Laques, Lecacheux Main - group trojan Saturn XIII Telesto 0012 ! 12 ± 3 294,710 1.888 1980 Smith, Reitsema, Larson, Fountain ( Voyager 1 ) Main - group trojan Saturn XIV Calypso 00095 ! 9.5 ± 1.5 294,710 1.888 1980 Pascu, Seidelmann, Baum, Currie Main - group trojan Saturn XV Atlas 00153 ! 15.3 ± 1.2 137,670 0.602 1980 Terrile ( Voyager 1 ) Inner moon ( shepherd ) Saturn XVI Prometheus 00468 ! 46.8 ± 5.6 139,380 0.613 1980 Collins ( Voyager 1 ) Inner moon ( shepherd ) Saturn XVII Pandora 00406 ! 40.6 ± 4.5 141,720 0.629 1980 Collins ( Voyager 1 ) Inner moon ( shepherd ) Saturn XVIII Pan 00128 ! 12.8 133,580 0.575 Showalter ( Voyager 2 ) Inner moon ( shepherd ) Saturn XIX Ymir 0009 ! 9 23,140,400 1,315.58 ( r ) 2000 Gladman Retrograde irregular ( Norse ) Saturn XX Paaliaq 0011 ! 11 15,200,000 686.95 2000 Gladman Prograde irregular ( Inuit ) Saturn XXI Tarvos 00075 ! 7.5 17,983,000 926.23 2000 Gladman, Kavelaars Prograde irregular ( Gallic ) Saturn XXII Ijiraq 0006 ! 6 11,124,000 451.42 2000 Gladman, Kavelaars Prograde irregular ( Inuit ) Saturn XXIII Suttungr 00035 ! 3.5 19,459,000 1,016.67 ( r ) 2000 Gladman, Kavelaars Retrograde irregular ( Norse ) Saturn XXIV Kiviuq 0008 ! 8 11,110,000 449.22 2000 Gladman Prograde irregular ( Inuit ) Saturn XXV Mundilfari 00035 ! 3.5 18,628,000 952.77 ( r ) 2000 Gladman, Kavelaars Retrograde irregular ( Norse ) Saturn XXVI Albiorix 0016 ! 16 16,182,000 783.45 2000 Holman, Spahr Prograde irregular ( Gallic ) Saturn XXVII Skathi 0004 ! 4 15,540,000 728.20 ( r ) 2000 Gladman, Kavelaars Retrograde irregular ( Norse ) Saturn XXVIII Erriapus 0005 ! 5 17,343,000 871.19 2000 Gladman, Kavelaars Prograde irregular ( Gallic ) Saturn XXIX Siarnaq 0020 ! 20 18,015,400 896.44 2000 Gladman, Kavelaars Prograde irregular ( Inuit ) Saturn XXX Thrymr 00035 ! 3.5 20,314,000 1,094.11 ( r ) 2000 Gladman, Kavelaars Retrograde irregular ( Norse ) Saturn XXXI Narvi 00035 ! 3.5 19,007,000 1,003.86 ( r ) 2003 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn XXXII Methone 00015 ! 1.6 194,440 1.010 Porco, Charnoz, Brahic, Dones ( Cassini -- Huygens ) Alkyonide moon Saturn XXXIII Pallene 0002 ! 2 212,280 1.154 Gordon, Murray, Beurle, et al. ( Cassini -- Huygens ) Alkyonide moon Saturn XXXIV Polydeuces 000125 ! 1.25 377,200 2.737 Porco et al. ( Cassini -- Huygens ) Main - group trojan Saturn XXXV Daphnis 00035 ! 3 -- 4 136,500 0.594 2005 Porco et al. ( Cassini -- Huygens ) Inner moon ( shepherd ) Saturn XXXVI Aegir 0003 ! 3 20,751,000 1,117.52 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XXXVII Bebhionn 0003 ! 3 17,119,000 834.84 Sheppard, Jewitt, Kleyna, Marsden Prograde irregular ( Gallic ) Saturn XXXVIII Bergelmir 0003 ! 3 19,336,000 1,005.74 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XXXIX Bestla 00035 ! 3.5 20,192,000 1,088.72 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XL Farbauti 00025 ! 2.5 20,377,000 1,085.55 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XLI Fenrir 0002 ! 2 22,454,000 1,260.35 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XLII Fornjot 0003 ! 3 25,146,000 1,494.2 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XLIII Hati 0003 ! 3 19,846,000 1,038.61 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn XLIV Hyrrokkin 0004 ! 4 18,437,000 931.86 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn XLV Kari 00035 ! 3.5 22,089,000 1,230.97 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn XLVI Loge 0003 ! 3 23,058,000 1,311.36 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn XLVII Skoll 0003 ! 3 17,665,000 878.29 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn XLVIII Surtur 0003 ! 3 22,704,000 1,297.36 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn XLIX Anthe 0001 ! 1 197,700 1.0365 2007 Porco et al. ( Cassini -- Huygens ) Alkyonide moon Saturn Jarnsaxa 0003 ! 3 18,811,000 964.74 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn LI Greip 0003 ! 3 18,206,000 921.19 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn LII Tarqeq 00035 ! 3.5 18,009,000 887.48 2007 Sheppard, Jewitt, Kleyna Prograde irregular ( Inuit ) Saturn LIII Aegaeon 000025 ! 0.25 167,500 0.808 2008 Cassini Imaging Science Team Cassini -- Huygens G - ring moonlet Saturn -- S / 2004 S 7 0003 ! 3 20,999,000 1,140.24 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn -- S / 2004 S 12 00025 ! 2.5 19,878,000 1,046.19 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn -- S / 2004 S 13 0003 ! 3 18,404,000 933.48 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn -- S / 2004 S 17 0002 ! 2 19,447,000 1,014.70 ( r ) Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular ( Norse ) Saturn -- S / 2006 S 1 0003 ! 3 18,790,000 963.37 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn -- S / 2006 S 3 0003 ! 3 22,096,000 1,227.21 ( r ) 2006 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn -- S / 2007 S 2 0003 ! 3 16,725,000 808.08 ( r ) 2007 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn -- S / 2007 S 3 0003 ! 3 18,975,000 977.8 ( r ) 2007 Sheppard, Jewitt, Kleyna Retrograde irregular ( Norse ) Saturn -- S / 2009 S 1 000015 ! 0.15 117,000 0.471 2009 Cassini Imaging Science Team Cassini -- Huygens B - ring moonlet Saturn Ariel 05789 ! 578.9 ± 0.6 190,900 2.520 1851 Lassell Main - group moon Uranus II Umbriel 05847 ! 584.7 ± 2.8 266,000 4.144 1851 Lassell Main - group moon Uranus III Titania 07889 ! 788.9 ± 1.8 436,300 8.706 1787 Herschel Main - group moon Uranus IV Oberon 07614 ! 761.4 ± 2.6 583,500 13.46 1787 Herschel Main - group moon Uranus V Miranda 02358 ! 235.8 ± 0.7 129,900 1.413 1948 Kuiper Main - group moon Uranus VI Cordelia 00201 ! 20.1 ± 3 49,800 0.335 1986 Terrile ( Voyager 2 ) Inner moon ( shepherd ) Uranus VII Ophelia 00214 ! 21.4 ± 4 53,800 0.376 1986 Terrile ( Voyager 2 ) Inner moon ( shepherd ) Uranus VIII Bianca 00257 ! 25.7 ± 2 59,200 0.435 1986 Smith ( Voyager 2 ) Inner moon Uranus IX Cressida 00398 ! 39.8 ± 2 61,800 0.464 1986 Synnott ( Voyager 2 ) Inner moon Uranus X Desdemona 00320 ! 32.0 ± 4 62,700 0.474 1986 Synnott ( Voyager 2 ) Inner moon Uranus XI Juliet 00468 ! 46.8 ± 4 64,400 0.493 1986 Synnott ( Voyager 2 ) Inner moon Uranus XII Portia 00676 ! 67.6 ± 4 66,100 0.513 1986 Synnott ( Voyager 2 ) Inner moon Uranus XIII Rosalind 0036 ! 36 ± 6 69,900 0.558 1986 Synnott ( Voyager 2 ) Inner moon Uranus XIV Belinda 00403 ! 40.3 ± 8 75,300 0.624 1986 Synnott ( Voyager 2 ) Inner moon Uranus XV Puck 0081 ! 81 ± 2 86,000 0.762 1985 Synnott ( Voyager 2 ) Inner moon Uranus XVI Caliban 0049 ! 49 7,231,100 579.73 ( r ) 1997 Gladman, Nicholson, Burns, Kavelaars Retrograde irregular Uranus XVII Sycorax 0075 ! 75 12,179,400 1,288.38 ( r ) 1997 Gladman, Nicholson, Burns, Kavelaars Retrograde irregular Uranus XVIII Prospero 0025 ! 25 16,256,000 1,978.29 ( r ) 1999 Gladman, Holman, Kavelaars, Petit, Scholl Retrograde irregular Uranus XIX Setebos 0024 ! 24 17,418,000 2,225.21 ( r ) 1999 Gladman, Holman, Kavelaars, Petit, Scholl Retrograde irregular Uranus XX Stephano 0010 ! 10 8,004,000 677.36 ( r ) 1999 Gladman, Holman, Kavelaars, Petit, Scholl Retrograde irregular Uranus XXI Trinculo 0005 ! 5 8,504,000 749.24 ( r ) 2001 Holman, Kavelaars, Milisavljevic Retrograde irregular Uranus XXII Francisco 0006 ! 6 4,276,000 266.56 ( r ) 2001 Holman, Kavelaars, Milisavljevic, Gladman Retrograde irregular Uranus XXIII Margaret 00055 ! 5.5 14,345,000 1,687.01 2003 Sheppard, Jewitt Prograde irregular Uranus XXIV Ferdinand 0006 ! 6 20,901,000 2,887.21 ( r ) 2001 Holman, Kavelaars, Milisavljevic, et al. Retrograde irregular Uranus XXV Perdita 0010 ! 10 76,417 0.638 1986 Karkoschka ( Voyager 2 ) Inner moon Uranus XXVI Mab 0005 ! 5 97,736 0.923 2003 Showalter, Lissauer Inner moon Uranus XXVII Cupid 0005 ! 5 74,392 0.613 2003 Showalter, Lissauer Inner moon Uranus Triton 13534 ! 1353.4 ± 0.9 354,800 5.877 ( r ) 1846 Lassell Retrograde irregular Neptune II Nereid 0170 ! 170 ± 25 5,513,820 360.14 1949 Kuiper Prograde irregular Neptune III Naiad 0033 ! 33 ± 3 48,227 0.294 1989 Terrile ( Voyager 2 ) Inner moon Neptune IV Thalassa 0041 ! 41 ± 3 50,075 0.311 1989 Terrile ( Voyager 2 ) Inner moon Neptune V Despina 0075 ! 75 ± 3 52,526 0.335 1989 Synnott ( Voyager 2 ) Inner moon Neptune VI Galatea 0088 ! 88 ± 4 61,953 0.429 1989 Synnott ( Voyager 2 ) Inner moon Neptune VII Larissa 0097 ! 97 ± 3 73,548 0.555 1982 Reitsema, Hubbard, Lebofsky, Tholen ( Voyager 2 ) Inner moon Neptune VIII Proteus 0210 ! 210 ± 7 117,647 1.122 1989 Synnott ( Voyager 2 ) Inner moon Neptune IX Halimede 0031 ! 31 15,728,000 1,879.71 ( r ) 2002 Holman, Kavelaars, Grav, Fraser, Milisavljevic Retrograde irregular Neptune X Psamathe 0020 ! 20 46,695,000 9,115.91 ( r ) 2003 Jewitt, Kleyna, Sheppard, Holman, Kavelaars Retrograde irregular Neptune XI Sao 0022 ! 22 22,422,000 2,914.07 2002 Holman, Kavelaars, Grav, Fraser, Milisavljevic Prograde irregular Neptune XII Laomedeia 0021 ! 21 23,571,000 3,167.85 2002 Holman, Kavelaars, Grav, Fraser, Milisavljevic Prograde irregular Neptune XIII Neso 0030 ! 30 48,387,000 9,373.99 ( r ) 2002 Holman, Kavelaars, Grav, Fraser, Milisavljevic Retrograde irregular Neptune -- S / 2004 N 1 0009 ! 8 -- 10 105,283 0.9362 2013 Showalter et al. Inner moon Neptune Charon 06036 ! 603.6 ± 1.4 19,591 6.387 1978 Christy Pluto II Nix 00230 ! 23.0 ± 2 48,671 24.85 2005 Weaver, Stern, Buie, et al. Pluto III Hydra 00305 ! 30.5 ± 4 64,698 38.20 2005 Weaver, Stern, Buie, et al. Pluto IV Kerberos 00140 ! 14.0 57,729 32.17 2011 Showalter ( Hubble ) Pluto V Styx 00100 ! 10.0 42,393 20.16 2012 Showalter ( Hubble ) Pluto Hi ʻiaka 0160 ! ~ 160 49,500 ± 400 49.12 ± 0.03 2005 Brown et al. Haumea II Namaka 0085 ! ~ 85 39,000 ( r ) 34.7 ± 0.1 if e = 0 2005 Brown et al. Haumea -- S / 2015 ( 136472 ) 1 0080 ! ~ 80 2016 Parker et al. Makemake Dysnomia 0257 ! 257 ± 110 37,370 ± 150 15.774 ± 0.002 2005 Brown, Rabinowitz, Trujillo et al. SDO moon Eris References Media related to Natural satellites at Wikimedia Commons Jump up ^ Warell, J. ; Karlsson, O. ( 2007 ). `` A search for natural satellites of Mercury ''. Planetary and Space Science. 55 ( 14 ) : 2037 -- 2041. Bibcode : 2007P&SS... 55.2037 W. doi : 10.1016 / j. pss. 2007.06. 004. 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Natural satellites of the Solar System Planetary satellites Terrestrial Martian Jovian Saturnian Uranian Neptunian Other satellites Minor - planet moons Plutonian Haumean Eridian Makemakean Largest satellites ( mean radius ≥ 100 km ) size Ganymede largest / 2634 km / 0.413 Earths Titan Callisto Io Moon Europa Triton Titania Rhea Oberon Iapetus Charon Umbriel Ariel Dione Tethys ( Dysnomia ) Enceladus Miranda Proteus Mimas ( Hi'iaka ) Nereid Hyperion Phoebe smallest / 106 km / 0.017 Earths abc 's Ariel Callisto Charon Dione ( Dysnomia ) Enceladus Europa Ganymede ( Hi'iaka ) Hyperion Iapetus Io Mimas Miranda Moon Nereid Oberon Phoebe Proteus Rhea Tethys Titan Titania Triton Umbriel Discovery timeline Inner moons Irregular moons List Naming Regular moons Trojan moons NOTE : Italicized moons are not close to being in hydrostatic equilibrium ; ( bracketed ) moons may or may not be close to being in hydrostatic equilibrium. Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_natural_satellites&oldid=804343344 '' Categories : Lists of moons Moons Hidden categories : All articles with dead external links Articles with dead external links from September 2017 Articles with permanently dead external links Commons category without a link on Wikidata Featured lists Use dmy dates from April 2011 Talk Contents About Wikipedia Alemannisch Беларуская Беларуская ( тарашкевіца ) ‎ Boarisch Brezhoneg Català Čeština Deutsch Ελληνικά فارسی 한국어 Bahasa Indonesia Italiano Bahasa Melayu Nederlands 日本 語 Norsk Polski Português Română Русский Soomaaliga Svenska Tagalog Українська 中文 Edit links This page was last edited on 8 October 2017, at 10 : 49. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. 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Question: which planet is 5.5 of earth's mass and has no moon
Answer: Mercury