List of natural satellites

Of the Solar System's eight planets and its nine most likely dwarf planets, six planets and seven dwarf planets are known to be orbited by at least 431 natural satellites, or moons. At least 19 of them are large enough to be gravitationally rounded; of these, all are covered by a crust of ice except for Earth's Moon and Jupiter's Io. Several of the largest ones are in hydrostatic equilibrium and would therefore be considered dwarf planets or planets if they were in direct orbit around the Sun and not in their current states (orbiting planets or dwarf planets).

Classification

Moons are classed into 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.

Background

The earliest published discovery of a moon other than 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.

Moons by primary

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 and the largest body typically described as a moon that orbits anything in hydrostatic equilibrium in relation to the primary object by mass and diameter other than Charon and Pluto. Earth also has more than 20 known co-orbitals, including the asteroids 3753 Cruithne and 469219 Kamoʻoalewa, and the occasional temporary satellite, like 2020 CD3; however, since they do not permanently 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 97 moons with known orbits announced; 72 of them have received permanent designations, and 57 have been named. Its eight regular moons are grouped into the planet-sized Galilean moons and the far smaller Amalthea group. They were named after lovers of Zeus, the Greek equivalent of Jupiter. Among them is Ganymede, the largest and most massive moon in the Solar System. The rest are irregular moons, which are organized into two categories: prograde and retrograde. The prograde satellites consist of the Himalia group and three others in groups of one. The retrograde moons are grouped into the Carme, Ananke and Pasiphae groups.

Saturn has 274 moons with known orbits announced; 66 of them have received permanent designations, and 63 have been named. 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 moons are irregular, and classified by their orbital characteristics into Inuit, Norse, and Gallic groups, and their names are chosen from the corresponding mythologies the groups are named after. 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 cannot 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 29 known moons announced, five of which are massive enough to have achieved hydrostatic equilibrium. There are 14 moons that orbit within Uranus's ring system, and another ten 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 16 known moons announced; 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 a dwarf planet that was captured. Neptune also has seven known inner regular satellites, and eight outer irregular satellites.

Pluto, a dwarf planet, is confirmed to have 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. Eris has one large known moon, Dysnomia. Accurately determining its size is difficult: one indicative estimate of its radius is 350±57.5 km.

Two objects were named as dwarf planets, under the expectation that they would prove to be so (though this remains uncertain). Haumea has two moons, Hiʻiaka and Namaka, of radii ~195 and ~100 km, respectively. Makemake has one moon, announced in April 2016.

A number of other objects in the Kuiper belt and scattered disk may turn out to be dwarf planets. Orcus, Quaoar, Gonggong, and Sedna are generally agreed to be dwarf planets among astronomers, and all but Sedna are known to have moons. A number of other smaller objects, such as Huya, Salacia, Uni, Varda, and Chiminigagua, also have moons, although their dwarf planethood is more doubtful.

As of November 2025, 471 asteroid moons and 149 trans-Neptunian moons (including those of Pluto and the other dwarf planets) had been discovered.

Summary – number of moons
Planets Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
Number of moons 0 0 1 2 97 274 29 16
Consensus dwarf planets Ceres Orcus Pluto Haumea Quaoar Makemake Gonggong Eris Sedna
Number of moons 0 1 5 2 1 1 1 1 0
Minor planets
See list

Due to Earth's varying distance from these planets (as well as their distance to the Sun), the limits at which we are able to detect new moons are very inconsistent. As the below graph demonstrates, the maximum absolute magnitude (total inherent brightness, abbreviated H) of moons we have detected around planets occurs at H = 18 for Jupiter, H = 17 for Saturn, H = 14 for Uranus, and H = 12 for Neptune. Smaller moons may (and most likely do) exist around each of these planets, but are currently undetectable from Earth. Although spacecraft have visited all of these planets, Earth-based telescopes continue to outperform them in moon-detection ability due to their greater availability for wide-field surveys.[citation needed]

List

This is a list of the recognized moons of the planets and of the largest potential dwarf planets of the Solar System, ordered by their official Roman numeral designations. Moons that do not yet have official Roman numeral designations (because their orbits are not yet known well enough) are listed after those that do.

The 19 moons that are known to be 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 a moon's speed depends both on the mass of its primary and its distance from it.

Satellites of planets
Satellite of Earth Satellites of Jupiter Satellites of Uranus
Satellites of Mars Satellites of Saturn Satellites of Neptune
Satellites of generally agreed dwarf planets
Satellite of Orcus Satellites of Pluto Satellites of Haumea
Satellite of Quaoar Satellite of Makemake Satellite of Gonggong
Satellite of Eris
Name Image Parent Numeral Average orbital speed (km/s) Mean radius (km) Orbital semi-major axis (km) Sidereal period (d)
(r = retrograde)
Discovery year Year Announced Discovered by Apparent Magnitude Notes Ref(s)
Moon Earth I (1) 1.022 1,738 384,399 27.321582 Prehistoric Prehistory -12.9 to -2.5 Synchronous rotation (Binary)
Phobos Mars I (1) 2.138 11.267 9,380 0.319 1877 1877 Hall 11.8 Synchronous rotation
Deimos Mars II (2) 1.351 6.2±0.18 23,460 1.262 1877 1877 Hall 12.89 Synchronous rotation
Io Jupiter I (1) 17.334 1,821.6±0.5 421,800 1.769 1610 1610 Galileo 5.02 Main-group moon (Galilean)
Europa Jupiter II (2) 13.7 1,560.8±0.5 671,100 3.551 1610 1610 Galileo 5.29 Main-group moon (Galilean)
Ganymede Jupiter III (3) 10.9 2,634.1±0.3 1,070,400 7.155 1610 1610 Galileo 4.61 Main-group moon (Galilean)
Callisto Jupiter IV (4) 8.2 2,410.3±1.5 1,882,700 16.69 1610 1610 Galileo 5.65 Main-group moon (Galilean)
Amalthea Jupiter V (5) 26.47 83.5±2 181,400 0.498 1892 1892 Barnard 14.1 Inner moon (Amalthea)
Himalia Jupiter VI (6) 3.34 69.8 11,461,000 250.56 1904 1905 Perrine 14.6 Prograde irregular (Himalia)
Elara Jupiter VII (7) 3.29 39.95 11,741,000 259.64 1905 1905 Perrine 16.6 Prograde irregular (Himalia)
Pasiphae Jupiter VIII (8) (unsure) 28.9 23,624,000 743.63 (r) 1908 1908 Melotte 16.9 Retrograde irregular (Pasiphae)
Sinope Jupiter IX (9) 2.258 17.5 23,939,000 758.90 (r) 1914 1914 Nicholson 18.3 Retrograde irregular (Pasiphae)
Lysithea Jupiter X (10) 3.29 21.1 11,717,000 259.20 1938 1938 Nicholson 18.2 Prograde irregular (Himalia)
Carme Jupiter XI (11) 2.281 23.3 23,404,000 734.17 (r) 1938 1938 Nicholson 18.9 Retrograde irregular (Carme)
Ananke Jupiter XII (12) -2.44 14.55 21,276,000 629.77 (r) 1951 1951 Nicholson 18.9 Retrograde irregular (Ananke)
Leda Jupiter XIII (13) 10.75 11,165,000 240.92 1974 1974 Kowal 20.2 Prograde irregular (Himalia)
Thebe Jupiter XIV (14) 23.92 49.3±2.0 221,900 0.675 1979 1980 Synnott (Voyager 1) 15.7 Inner moon (Amalthea)
Adrastea Jupiter XV (15) 31.378 8.2±2.0 129,000 0.298 1979 1979 Jewitt, Danielson (Voyager 1) 19.1 Inner moon (Amalthea)
Metis Jupiter XVI (16) 31.501 21.5±2.0 128,000 0.295 1979 1980 Synnott (Voyager 1) 17.50 Inner moon (Amalthea)
Callirrhoe Jupiter XVII (17) 4.8 24,103,000 758.77 (r) 1999 2000 Scotti, Spahr, McMillan, Larsen, Montani, Gleason, Gehrels 20.8 Retrograde irregular (Pasiphae)
Themisto Jupiter XVIII (18) 4.5 7,284,000 130.02 1975/2000 1975/2000 Kowal and Roemer (original); Sheppard, Jewitt, Fernández, Magnier (rediscovery) 21.0 Prograde irregular (Themisto)
Megaclite Jupiter XIX (19) 2.7 23,493,000 752.86 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 21.7 Retrograde irregular (Pasiphae)
Taygete Jupiter XX (20) 2.5 23,280,000 732.41 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 21.9 Retrograde irregular (Carme)
Chaldene Jupiter XXI (21) 1.9 23,100,000 723.72 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 22.5 Retrograde irregular (Carme)
Harpalyke Jupiter XXII (22) 2.2 20,858,000 623.32 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 22.2 Retrograde irregular (Ananke)
Kalyke Jupiter XXIII (23) 3.45 23,483,000 742.06 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 21.8 Retrograde irregular (Carme)
Iocaste Jupiter XXIV (24) 2.6 21,060,000 631.60 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 21.8 Retrograde irregular (Ananke)
Erinome Jupiter XXV (25) 1.6 23,196,000 728.46 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 22.8 Retrograde irregular (Carme)
Isonoe Jupiter XXVI (26) 1.9 23,155,000 726.23 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 22.5 Retrograde irregular (Carme)
Praxidike Jupiter XXVII (27) 3.5 20,908,000 625.39 (r) 2000 2001 Sheppard, Jewitt, Fernández, Magnier, Dahm, Evans 21.2 Retrograde irregular (Ananke)
Autonoe Jupiter XXVIII (28) 2 24,046,000 760.95 (r) 2001 2002 Sheppard, Jewitt, Kleyna 22.0 Retrograde irregular (Pasiphae)
Thyone Jupiter XXIX (29) 2 20,939,000 627.21 (r) 2001 2002 Sheppard, Jewitt, Kleyna 22.3 Retrograde irregular (Ananke)
Hermippe Jupiter XXX (30) 2 21,131,000 633.9 (r) 2001 2002 Sheppard, Jewitt, Kleyna 22.1 Retrograde irregular (Ananke)
Aitne Jupiter XXXI (31) 1.5 23,229,000 730.18 (r) 2001 2002 Sheppard, Jewitt, Kleyna 22.7 Retrograde irregular (Carme)
Eurydome Jupiter XXXII (32) 1.5 22,865,000 717.33 (r) 2001 2002 Sheppard, Jewitt, Kleyna 22.7 Retrograde irregular (Pasiphae)
Euanthe Jupiter XXXIII (33) 1.5 20,797,000 620.49 (r) 2001 2002 Sheppard, Jewitt, Kleyna 22.8 Retrograde irregular (Ananke)
Euporie Jupiter XXXIV (34) 1 19,304,000 550.74 (r) 2001 2002 Sheppard, Jewitt, Kleyna 23.1 Retrograde irregular (Ananke)
Orthosie Jupiter XXXV (35) 1 20,720,000 622.56 (r) 2001 2002 Sheppard, Jewitt, Kleyna 23.1 Retrograde irregular (Ananke)
Sponde Jupiter XXXVI (36) 1 23,487,000 748.34 (r) 2001 2002 Sheppard, Jewitt, Kleyna 23.0 Retrograde irregular (Pasiphae)
Kale Jupiter XXXVII (37) 1 23,217,000 729.47 (r) 2001 2002 Sheppard, Jewitt, Kleyna 23.0 Retrograde irregular (Carme)
Pasithee Jupiter XXXVIII (38) 1 23,004,000 719.44 (r) 2001 2002 Sheppard, Jewitt, Kleyna 23.2 Retrograde irregular (Carme)
Hegemone Jupiter XXXIX (39) 1.5 23,577,000 739.88 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández 22.8 Retrograde irregular (Pasiphae)
Mneme Jupiter XL (40) 1 21,035,000 620.04 (r) 2003 2003 Gladman, Allen 23.3 Retrograde irregular (Ananke)
Aoede Jupiter XLI (41) 2 23,980,000 761.50 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 22.5 Retrograde irregular (Pasiphae)
Thelxinoe Jupiter XLII (42) 1 21,164,000 628.09 (r) 2003 2004 Sheppard, Jewitt, Kleyna, Gladman, Kavelaars, Petit, Allen 23.5 Retrograde irregular (Ananke)
Arche Jupiter XLIII (43) 1.5 23,355,000 731.95 (r) 2002 2002 Sheppard, Meech, Hsieh, Tholen, Tonry 22.8 Retrograde irregular (Carme)
Kallichore Jupiter XLIV (44) 1 23,288,000 728.73 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández 23.7 Retrograde irregular (Carme)
Helike Jupiter XLV (45) 2 21,069,000 626.32 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 22.6 Retrograde irregular (Ananke)
Carpo Jupiter XLVI (46) 1.5 17,058,000 456.30 2003 2003 Sheppard, Gladman, Kavelaars, Petit, Allen, Jewitt, Kleyna 23.0 Prograde irregular (Carpo)
Eukelade Jupiter XLVII (47) 2 23,328,000 730.47 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 22.6 Retrograde irregular (Carme)
Cyllene Jupiter XLVIII (48) 1 23,809,000 752 (r) 2003 2003 Sheppard, Jewitt, Kleyna 23.2 Retrograde irregular (Pasiphae)
Kore Jupiter XLIX (49) 1 24,543,000 779.17 (r) 2003 2003 Sheppard, Jewitt, Kleyna 23.6 Retrograde irregular (Pasiphae)
Herse Jupiter L (50) 1 22,983,000 714.51 (r) 2003 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen 23.4 Retrograde irregular (Carme)
S/2010 J 1 Jupiter LI (51) 1 23,314,300 723.2 (r) 2010 2011 Jacobson, Brozović, Gladman, Alexandersen ≈23 Retrograde irregular (Carme)
S/2010 J 2 Jupiter LII (52) 0.5 20,307,200 588.1 (r) 2010 2011 Veillet 24 Retrograde irregular (Ananke)
Dia Jupiter LIII (53) 2 12,118,000 287.0 2000 2001 Sheppard, Jewitt, Kleyna, Fernández, Hsieh Prograde irregular (Himalia)
S/2016 J 1 Jupiter LIV (54) 1 20,595,500 602.7 (r) 2016 2017 Sheppard ≈24.2 Retrograde irregular (Ananke)
S/2003 J 18 Jupiter LV (55) 1 20,274,000 588.0 (r) 2003 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen 23.4 Retrograde irregular (Ananke)
S/2011 J 2 Jupiter LVI (56) 0.5 23,329,700 726.8 (r) 2011 2012 Sheppard 23.5 Retrograde irregular (Pasiphae)
Eirene Jupiter LVII (57) 2 23,731,800 759.7 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 22.4 Retrograde irregular (Carme)
Philophrosyne Jupiter LVIII (58) 1 22,820,000 701.3 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández 23.5 Retrograde irregular (Pasiphae)
S/2017 J 1 Jupiter LIX (59) 2 23,484,000 734.2 (r) 2017 2017 Sheppard ≈23.8 Retrograde irregular (Pasiphae)
Eupheme Jupiter LX (60) 1 21,199,710 627.8 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 23.4 Retrograde irregular (Ananke)
S/2003 J 19 Jupiter LXI (61) 1 22,757,000 697.6 (r) 2003 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen 23.7 Retrograde irregular (Carme)
Valetudo Jupiter LXII (62) 0.5 18,928,100 532.0 2016 2018 Sheppard Prograde irregular (Valetudo)
S/2017 J 2 Jupiter LXIII (63) 1 23,241,000 723.8 (r) 2017 2018 Sheppard Retrograde irregular (Carme)
S/2017 J 3 Jupiter LXIV (64) 1 20,639,300 605.8 (r) 2017 2018 Sheppard Retrograde irregular (Ananke)
Pandia Jupiter LXV (65) 1.5 11,494,800 251.8 2017 2018 Sheppard 23.0 Prograde irregular (Himalia)
S/2017 J 5 Jupiter LXVI (66) 1 23,169,400 720.5 (r) 2017 2018 Sheppard Retrograde irregular (Carme)
S/2017 J 6 Jupiter LXVII (67) 1 22,394,700 684.7 (r) 2017 2018 Sheppard Retrograde irregular (Pasiphae)
S/2017 J 7 Jupiter LXVIII (68) 1 20,571,500 602.8 (r) 2017 2018 Sheppard Retrograde irregular (Ananke)
S/2017 J 8 Jupiter LXIX (69) 0.5 23,174,400 720.7 (r) 2017 2018 Sheppard Retrograde irregular (Carme)
S/2017 J 9 Jupiter LXX (70) 1 21,430,000 640.9 (r) 2017 2018 Sheppard Retrograde irregular (Ananke)
Ersa Jupiter LXXI (71) 1.5 11,453,000 250.4 2018 2018 Sheppard Prograde irregular (Himalia)
S/2011 J 1 Jupiter LXXII (72) 0.5 20,155,300 580.7 (r) 2011 2012 Sheppard 23.7 Retrograde irregular (Carme)
S/2003 J 2 Jupiter 1 20,554,400 602.02 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 23.2 Retrograde irregular (Ananke)
S/2003 J 4 Jupiter 1 22,048,600 668.85 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández, Hsieh 23 Retrograde irregular (Pasiphae)
S/2003 J 9 Jupiter 0.5 24,168,700 767.6 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández 23.7 Retrograde irregular (Carme)
S/2003 J 10 Jupiter 1 22,896,000 707.78 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández 23.6 Retrograde irregular (Carme)
S/2003 J 12 Jupiter 0.5 21,557,700 646.64 (r) 2003 2003 Sheppard, Jewitt, Kleyna, Fernández 23 Retrograde irregular (Ananke)
S/2003 J 16 Jupiter 1 20,512,500 600.18 (r) 2003 2003 Gladman, Sheppard, Jewitt, Kleyna, Kavelaars, Petit, Allen 23.3 Retrograde irregular (Ananke)
S/2003 J 23 Jupiter 1 24,678,100 792.00 (r) 2003 2004 Sheppard, Jewitt, Kleyna, Fernández 23.6 Retrograde irregular (Pasiphae)
S/2003 J 24 Jupiter 1.5 23,088,000 715.4 (r) 2003 2021 Sheppard, Jewitt, Kleyna, Gladman, Veillet 23.8 Retrograde irregular (Carme)
S/2011 J 3 Jupiter 1.5 11,797,200 261.77 2011 2022 Sheppard 23.1 Prograde irregular (Himalia)
S/2016 J 3 Jupiter 1 22,213,500 676.37 (r) 2016 2023 Sheppard 23.6 Retrograde irregular (Carme)
S/2016 J 4 Jupiter 1 23,664,100 743.69 (r) 2016 2023 Sheppard 24.0 Retrograde irregular (Pasiphae)
S/2017 J 10 Jupiter 2 21,523,400 645.09 (r) 2017 2025 Sheppard Retrograde irregular (Ananke)
S/2017 J 11 Jupiter 2 22,742,300 700.66 (r) 2017 2025 Sheppard Retrograde irregular (Carme)
S/2018 J 2 Jupiter 1.5 11,467,500 250.88 2018 2022 Sheppard 23.3 Prograde irregular (Himalia)
S/2018 J 3 Jupiter 0.5 22,826,600 704.56 (r) 2018 2023 Sheppard 23.9 Retrograde irregular (Carme)
S/2018 J 4 Jupiter 1 16,504,300 433.16 2018 2023 Sheppard 23.5 Prograde irregular (Carpo)
S/2021 J 1 Jupiter 0.5 20,667,200 606.99 (r) 2021 2023 Sheppard 23.9 Retrograde irregular (Ananke)
S/2021 J 2 Jupiter 0.5 21,140,600 627.96 (r) 2021 2023 Sheppard 24.0 Retrograde irregular (Ananke)
S/2021 J 3 Jupiter 1 21,495,700 643.85 (r) 2021 2023 Sheppard 24.0 Retrograde irregular (Ananke)
S/2021 J 4 Jupiter 0.5 22,946,700 710.13 (r) 2021 2023 Sheppard 24.0 Retrograde irregular (Carme)
S/2021 J 5 Jupiter 1 22,831,800 704.80 (r) 2021 2023 Sheppard, Tholen, Trujillo 23.6 Retrograde irregular (Carme)
S/2021 J 6 Jupiter 0.5 23,427,200 732.55 (r) 2021 2023 Sheppard, Tholen, Trujillo 23.9 Retrograde irregular (Carme)
S/2022 J 1 Jupiter 0.5 22,015,500 667.34 (r) 2022 2023 Sheppard 23.8 Retrograde irregular (Carme)
S/2022 J 2 Jupiter 0.5 22,413,200 685.51 (r) 2022 2023 Sheppard 24.0 Retrograde irregular (Carme)
S/2022 J 3 Jupiter 0.5 20,912,400 617.82 (r) 2022 2023 Sheppard 24.0 Retrograde irregular (Ananke)
Mimas Saturn I (1) 14.28 198.2±0.4 185,540 0.942 1789 1789 Herschel 12.9 Main-group moon
Enceladus Saturn II (2) 252.1±0.2 238,040 1.370 1789 1789 Herschel 11.7 Main-group moon
Tethys Saturn III (3) 11.35 533.1±0.7 294,670 1.888 1684 1686 Cassini 10.2 Main-group moon (Sidera Lodoicea)
Dione Saturn IV (4) 561.4±0.4 377,420 2.737 1684 1686 Cassini 10.4 Main-group moon (Sidera Lodoicea)
Rhea Saturn V (5) 8.48 763.8±1.0 527,070 4.518 1672 1673 Cassini 10 Main-group moon (Sidera Lodoicea)
Titan Saturn VI (6) 5.57 2,574.73±0.09 1,221,870 15.95 1655 1656 Huygens 8.2 to 9.0 Main-group moon
Hyperion Saturn VII (7) 135 1,500,880 21.28 1848 1848 W.Bond, G. Bond, and Lassell 14.1 Main-group moon
Iapetus Saturn VIII (8) 3.26 735.6±1.5 3,560,840 79.33 1671 1673 Cassini 10.2 to 11.9 Main-group moon (Sidera Lodoicea)

Brightest when west of Saturn every 40 days

Phoebe Saturn IX (9) 106.5±0.7 12,947,780 550.31 (r) 1898 1899 Pickering 15.89 Retrograde irregular (Norse)
Janus Saturn X (10) 89.5±1.4 151,460 0.695 1966/1980 1967/1980 Dollfus; Voyager 1 (confirmed) 14.4 Inner moon (co-orbital)
Epimetheus Saturn XI (11) 58.1±1.8 151,410 0.694 1966/1980 1967/1980 Walker; Voyager 1 (confirmed) 15.6 Inner moon (co-orbital)
Helene Saturn XII (12) 17.6±0.4 377,420 2.737 1980 1980 Laques, Lecacheux 18.4 Main-group trojan
Telesto Saturn XIII (13) 12.4±0.4 294,710 1.888 1980/1981 1980 Smith, Reitsema, Larson, Fountain (Voyager 1) 18.7 Main-group trojan
Calypso Saturn XIV (14) 10.7±0.7 294,710 1.888 1980/1981 1980 Pascu, Seidelmann, Baum, Currie 18.7 Main-group trojan
Atlas Saturn XV (15) 15.1±0.9 137,670 0.602 1980 1980 Terrile (Voyager 1) 19.0 Inner moon (shepherd)
Prometheus Saturn XVI (16) 43.1±2.7 139,380 0.613 1980 1980 Collins (Voyager 1) 15.8 Inner moon (shepherd)
Pandora Saturn XVII (17) 40.7±1.5 141,720 0.629 1980 1980 Collins (Voyager 1) 16.4 Inner moon (shepherd)
Pan Saturn XVIII (18) 14.1 133,580 0.575 1981 1990 Showalter (Voyager 2) 19.4 Inner moon (shepherd)
Ymir Saturn XIX (19) 11 23,140,400 1,315.58 (r) 2000 2000 Gladman Retrograde irregular (Norse)
Paaliaq Saturn XX (20) 14.5 15,200,000 686.95 2000 2000 Gladman Prograde irregular (Inuit) (Paaliaq)
Tarvos Saturn XXI (21) 7.5 17,983,000 926.23 2000 2000 Gladman, Kavelaars Prograde irregular (Gallic)
Ijiraq Saturn XXII (22) 6 11,124,000 451.42 2000 2000 Gladman, Kavelaars Prograde irregular (Inuit) (Kiviuq)
Suttungr Saturn XXIII (23) 3.5 19,459,000 1,016.67 (r) 2000 2000 Gladman, Kavelaars Retrograde irregular (Norse)
Kiviuq Saturn XXIV (24) 8 11,110,000 449.22 2000 2000 Gladman Prograde irregular (Inuit) (Kiviuq)
Mundilfari Saturn XXV (25) 3.5 18,628,000 952.77 (r) 2000 2000 Gladman, Kavelaars Retrograde irregular (Norse)
Albiorix Saturn XXVI (26) 14.3 16,182,000 783.45 2000 2000 Holman, Spahr Prograde irregular (Gallic)
Skathi Saturn XXVII (27) 4 15,540,000 728.20 (r) 2000 2000 Gladman, Kavelaars Retrograde irregular (Norse)
Erriapus Saturn XXVIII (28) 5 17,343,000 871.19 2000 2000 Gladman, Kavelaars Prograde irregular (Gallic)
Siarnaq Saturn XXIX (29) 19.65 18,015,400 896.44 2000 2000 Gladman, Kavelaars Prograde irregular (Inuit) (Siarnaq)
Thrymr Saturn XXX (30) 3.5 20,314,000 1,094.11 (r) 2000 2000 Gladman, Kavelaars Retrograde irregular (Norse)
Narvi Saturn XXXI (31) 3.5 19,007,000 1,003.86 (r) 2003 2003 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Methone Saturn XXXII (32) 1.45 194,440 1.010 2004 2004 Porco, Charnoz, Brahic, Dones (Cassini–Huygens) Alkyonide moon
Pallene Saturn XXXIII (33) 2.22 212,280 1.154 1981/2004 2004 Gordon, Murray, Beurle, et al. (Cassini–Huygens) Alkyonide moon
Polydeuces Saturn XXXIV (34) 1.3 377,200 2.737 2004 2004 Porco et al. (Cassini–Huygens) Main-group trojan
Daphnis Saturn XXXV (35) 3.8±0.8 136,500 0.594 2005 2005 Porco et al. (Cassini–Huygens) Inner moon (shepherd)
Aegir Saturn XXXVI (36) 3 20,751,000 1,117.52 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
Bebhionn Saturn XXXVII (37) 3 17,119,000 834.84 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Prograde irregular (Gallic)
Bergelmir Saturn XXXVIII (38) 3 19,336,000 1,005.74 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
Bestla Saturn XXXIX (39) 3.5 20,192,000 1,088.72 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
Farbauti Saturn XL (40) 2.5 20,377,000 1,085.55 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden 24.7 Retrograde irregular (Norse)
Fenrir Saturn XLI (41) 2 22,454,000 1,260.35 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden 25.0 Retrograde irregular (Norse)
Fornjot Saturn XLII (42) 3 25,146,000 1,494.2 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden 24.6 Retrograde irregular (Norse)
Hati Saturn XLIII (43) 3 19,846,000 1,038.61 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden 24.4 Retrograde irregular (Norse)
Hyrrokkin Saturn XLIV (44) 4 18,437,000 931.86 (r) 2004 2006 Sheppard, Jewitt, Kleyna 23.5 Retrograde irregular (Norse)
Kari Saturn XLV (45) 3.5 22,089,000 1,230.97 (r) 2006 2006 Sheppard, Jewitt, Kleyna 23.9 Retrograde irregular (Norse)
Loge Saturn XLVI (46) 3 23,058,000 1,311.36 (r) 2006 2006 Sheppard, Jewitt, Kleyna 24.6 Retrograde irregular (Norse)
Skoll Saturn XLVII (47) 3 17,665,000 878.29 (r) 2006 2006 Sheppard, Jewitt, Kleyna 24.5 Retrograde irregular (Norse)
Surtur Saturn XLVIII (48) 3 22,704,000 1,297.36 (r) 2006 2006 Sheppard, Jewitt, Kleyna 24.8 Retrograde irregular (Norse)
Anthe Saturn XLIX (49) 0.9 197,700 1.0365 2007 2007 Porco et al. (Cassini–Huygens) Alkyonide moon
Jarnsaxa Saturn L (50) 3 18,811,000 964.74 (r) 2006 2006 Sheppard, Jewitt, Kleyna 24.7 Retrograde irregular (Norse)
Greip Saturn LI (51) 3 18,206,000 921.19 (r) 2006 2006 Sheppard, Jewitt, Kleyna 24.4 Retrograde irregular (Norse)
Tarqeq Saturn LII (52) 3.5 18,009,000 887.48 2007 2007 Sheppard, Jewitt, Kleyna 23.9 Prograde irregular (Inuit) (Siarnaq)
Aegaeon Saturn LIII (53) 0.33 167,500 0.808 2008 2009 Cassini Imaging Science Team Cassini–Huygens G-ring moonlet
Gridr Saturn LIV (54) 3 19,418,000 1,010.55 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Angrboda Saturn LV (55) 3 20,636,000 1,107.13 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Skrymir Saturn LVI (56) 4 21,163,000 1,149.82 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Gerd Saturn LVII (57) 4 21,174,000 1,150.69 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 26 Saturn LVIII (58) 4 26,676,000 1,627.18 (r) 2004 2019 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
Eggther Saturn LIX (59) 6 19,976,000 1,054.45 (r) 2004 2019 Sheppard, Jewitt, Kleyna, Marsden, Jacobson Retrograde irregular (Norse)
S/2004 S 29 Saturn LX (60) 4 16,981,000 826.44 2004 2019 Sheppard, Jewitt, Kleyna, Marsden Prograde irregular (Gallic)
Beli Saturn LXI (61) 3 20,396,000 1,087.84 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Gunnlod Saturn LXII (62) 4 21,214,000 1,153.96 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Thiazzi Saturn LXIII (63) 4 24,168,000 1,403.18 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 34 Saturn LXIV (64) 3 24,299,000 1,414.59 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
Alvaldi Saturn LXV (65) 6 22,412,000 1,253.08 (r) 2004 2019 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
Geirrod Saturn LXVI (66) 4 21,908,000 1,211.02 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 7 Saturn 3 20,999,000 1,140.24 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
S/2004 S 12 Saturn 2.5 19,878,000 1,046.19 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
S/2004 S 13 Saturn 3 18,404,000 933.48 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
S/2004 S 17 Saturn 2 19,447,000 1,014.70 (r) 2004 2005 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
S/2004 S 21 Saturn 3 22,645,000 1,272.61 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 24 Saturn 3 22,901,000 1,294.25 2004 2019 Sheppard, Jewitt, Kleyna, Marsden Prograde irregular (group unknown, possibly Gallic)
S/2004 S 28 Saturn 4 22,020,000 1,220.31 (r) 2004 2019 Sheppard, Jewitt, Kleyna, Marsden Retrograde irregular (Norse)
S/2004 S 31 Saturn 4 17,568,000 869.65 2004 2019 Sheppard, Jewitt, Kleyna, Marsden Prograde irregular (Inuit) (Siarnaq)
S/2004 S 36 Saturn 3 23,192,000 1,319.07 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 37 Saturn 4 15,892,000 748.18 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 39 Saturn 3 23,575,000 1,351.83 (r) 2004 2019 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2004 S 40 Saturn 2 16,075,600 765.92 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 41 Saturn 2 18,095,000 895.76 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 42 Saturn 2 18,240,800 910.61 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 43 Saturn 2 18,935,000 971.48 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 44 Saturn 2.5 19,515,400 1,014.98 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 45 Saturn 2 19,693,600 1,058.95 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 46 Saturn 1.5 20,513,000 1,107.57 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 47 Saturn 2 16,050,600 755.69 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 48 Saturn 2 22,136,700 1,248.52 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 49 Saturn 2 22,399,700 1,290.34 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 50 Saturn 1.5 22,346,000 1,219.11 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 51 Saturn 2 25,208,200 1,544.65 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 52 Saturn 1.5 26,448,100 1,573.49 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 53 Saturn 2 23,279,800 1,367.72 (r) 2004 2023 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 54 Saturn 2.0 11,265,600 446.42 2004 2025 Sheppard et al. Prograde irregular (Inuit) (Kiviuq)
S/2004 S 55 Saturn 1.5 11,319,500 449.63 2004 2025 Sheppard et al. Prograde irregular (Inuit) (Kiviuq)
S/2004 S 56 Saturn 2.0 13,661,000 596.13 (r) 2004 2025 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 57 Saturn 1.5 18,119,300 910.59 (r) 2004 2025 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 58 Saturn 2.0 18,170,500 914.46 2004 2025 Sheppard et al. Prograde irregular (Inuit) (Siarnaq)
S/2004 S 59 Saturn 1.5 19,099,100 985.45 (r) 2004 2025 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 60 Saturn 1.5 19,420,700 1,010.44 (r) 2004 2025 Sheppard et al. Retrograde irregular (Norse)
S/2004 S 61 Saturn 1.5 20,893,400 1,127.53 (r) 2004 2025 Sheppard et al. Retrograde irregular (Norse)
S/2005 S 4 Saturn 2.5 11,324,500 448.63 2005 2023 Sheppard et al. Prograde irregular (Inuit) (Kiviuq)
S/2005 S 5 Saturn 1.5 21,366,200 1,138.62 (r) 2005 2023 Sheppard et al. Retrograde irregular (Norse)
S/2005 S 6 Saturn 1.5 17,931,200 896.45 2005 2025 Sheppard et al. Prograde irregular (Inuit) (Siarnaq)
S/2005 S 7 Saturn 1.5 18,734,500 957.36 2005 2025 Sheppard et al. Prograde irregular (Gallic)
S/2006 S 1 Saturn 3 18,790,000 963.37 (r) 2006 2006 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2006 S 3 Saturn 3 22,096,000 1,227.21 (r) 2006 2006 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2006 S 9 Saturn 1.5 14,406,600 648.71 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 10 Saturn 1.5 18,979,900 965.26 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 11 Saturn 1.5 19,711,900 1,018.45 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 12 Saturn 2 19,569,800 1,043.16 2006 2023 Sheppard et al. Prograde irregular (Gallic)
S/2006 S 13 Saturn 2 19,953,800 1,061.74 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 14 Saturn 1.5 21,062,100 1,150.64 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 15 Saturn 2 21,799,400 1,183.57 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 16 Saturn 1.5 21,720,700 1,217.36 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 17 Saturn 2 22,384,900 1,262.48 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 18 Saturn 2 22,760,700 1,324.09 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 19 Saturn 2 23,801,100 1,324.68 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 20 Saturn 2.5 13,193,800 563.89 (r) 2006 2023 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 21 Saturn 1.5 15,047,400 689.14 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 22 Saturn 1.5 15,139,000 695.44 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 23 Saturn 1.5 18,176,200 914.89 2006 2025 Sheppard et al. Prograde irregular (Inuit) (Siarnaq)
S/2006 S 24 Saturn 1.0 18,143,200 912.4 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 25 Saturn 1.5 18,384,900 930.69 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 26 Saturn 1.5 18,655,900 951.35 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 27 Saturn 1.5 19,422,100 1,010.55 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 28 Saturn 1.5 22,361,800 1,248.46 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2006 S 29 Saturn 1.5 25,925,400 1,558.48 (r) 2006 2025 Sheppard et al. Retrograde irregular (Norse)
S/2007 S 2 Saturn 3 16,725,000 808.08 (r) 2007 2007 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2007 S 3 Saturn 3 18,975,000 977.8 (r) 2007 2007 Sheppard, Jewitt, Kleyna Retrograde irregular (Norse)
S/2007 S 5 Saturn 2 15,835,700 748.50 (r) 2007 2023 Sheppard et al. Retrograde irregular (Norse)
S/2007 S 6 Saturn 1.5 18,544,900 944.31 (r) 2007 2023 Sheppard et al. Retrograde irregular (Norse)
S/2007 S 7 Saturn 2 15,931,700 742.79 (r) 2007 2023 Sheppard et al. Retrograde irregular (Norse)
S/2007 S 8 Saturn 2 17,049,000 826.94 2007 2023 Sheppard et al. Prograde irregular (Gallic)
S/2007 S 9 Saturn 2 20,174,600 1,099.69 (r) 2007 2023 Sheppard et al. Retrograde irregular (Norse)
S/2007 S 10 Saturn 2.0 11,380,300 453.26 2007 2025 Sheppard et al. Prograde irregular (Inuit) (Kiviuq)
S/2007 S 11 Saturn 1.5 17,602,900 871.95 2007 2025 Sheppard et al. Prograde irregular (Gallic)
S/2009 S 1 Saturn 0.15 117,000 0.471 2009 2009 Cassini Imaging Science Team Cassini–Huygens B-ring moonlet
S/2019 S 1 Saturn 3 11,221,000 443.8 2019 2021 Ashton, Gladman, Petit, Alexandersen Prograde irregular (Inuit) (Kiviuq)
S/2019 S 2 Saturn 1.5 16,559,900 796.22 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 3 Saturn 2 17,077,200 836.68 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 4 Saturn 1.5 17,956,700 898.40 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 5 Saturn 1.5 19,076,900 971.54 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 6 Saturn 2 18,198,700 905.41 2019 2023 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2019 S 7 Saturn 2 20,181,300 1,093.86 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 8 Saturn 2 20,284,400 1,080.60 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 9 Saturn 2 20,359,000 1,104.27 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 10 Saturn 1.5 20,713,400 1,129.53 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 11 Saturn 2 20,663,700 1,097.33 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 12 Saturn 2 20,904,500 1,130.40 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 13 Saturn 1.5 20,965,800 1,132.90 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 14 Saturn 2 17,853,000 902.00 2019 2023 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2019 S 15 Saturn 1.5 21,189,700 1,156.21 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 16 Saturn 1.5 23,266,700 1,360.26 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 17 Saturn 2 22,724,100 1,322.15 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 18 Saturn 1.5 23,140,700 1,349.74 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 19 Saturn 1.5 23,047,200 1,342.57 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 20 Saturn 1.5 23,678,600 1,343.58 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 21 Saturn 2 26,439,000 1,572.06 (r) 2019 2023 Ashton et al. Retrograde irregular (Norse)
S/2019 S 22 Saturn 1.5 11,280,600 447.31 2019 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2019 S 23 Saturn 1.5 11,288,800 447.8 2019 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2019 S 24 Saturn 2.0 11,361,100 452.11 2019 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2019 S 25 Saturn 1.5 11,306,800 448.87 2019 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2019 S 26 Saturn 1.5 11,401,300 454.51 2019 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2019 S 27 Saturn 1.5 16,179,300 768.34 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 28 Saturn 1.5 17,684,100 877.99 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 29 Saturn 1.5 17,345,000 852.85 2019 2025 Ashton et al. Prograde irregular (Gallic)
S/2019 S 30 Saturn 1.0 17,828,600 888.77 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 31 Saturn 1.5 17,791,000 885.96 2019 2025 Ashton et al. Prograde irregular (Gallic)
S/2019 S 32 Saturn 2.0 17,712,200 880.08 2019 2025 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2019 S 33 Saturn 1.5 18,930,200 972.41 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 34 Saturn 1.5 18,317,400 925.57 2019 2025 Ashton et al. Prograde irregular (Gallic)
S/2019 S 35 Saturn 1.5 18,429,200 934.06 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 36 Saturn 1.0 20,076,300 1,062.04 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 37 Saturn 1.5 19,980,000 1,054.4 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 38 Saturn 1.5 22,356,200 1,247.99 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 39 Saturn 1.5 24,139,800 1,400.28 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 40 Saturn 1.5 24,549,100 1,436.04 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 41 Saturn 1.0 24,773,800 1,455.81 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 42 Saturn 2.0 23,850,100 1,375.15 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 43 Saturn 1.5 27,185,300 1,673.46 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2019 S 44 Saturn 1.5 26,083,200 1,572.74 (r) 2019 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 1 Saturn 2 11,338,700 450.83 2020 2023 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2020 S 2 Saturn 1.5 17,869,300 907.00 (r) 2020 2023 Ashton et al. Retrograde irregular (Norse)
S/2020 S 3 Saturn 1.5 18,054,700 896.35 2020 2023 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2020 S 4 Saturn 1.5 18,235,500 910.34 2020 2023 Ashton et al. Prograde irregular (Gallic)
S/2020 S 5 Saturn 1.5 18,391,300 933.52 2020 2023 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2020 S 6 Saturn 1.5 21,265,300 1,149.11 (r) 2020 2023 Ashton et al. Retrograde irregular (Norse)
S/2020 S 7 Saturn 1.5 17,400,000 844.85 (r) 2020 2023 Ashton et al. Retrograde irregular (Norse)
S/2020 S 8 Saturn 1.5 21,966,700 1,201.72 (r) 2020 2023 Ashton et al. Retrograde irregular (Norse)
S/2020 S 9 Saturn 2 25,434,100 1,565.23 (r) 2020 2023 Ashton et al. Retrograde irregular (Norse)
S/2020 S 10 Saturn 1.5 25,314,800 1,479.87 (r) 2020 2023 Ashton et al. Retrograde irregular (Norse)
S/2020 S 11 Saturn 1.0 11,298,100 448.35 2020 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2020 S 12 Saturn 1.0 11,330,300 450.27 2020 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2020 S 13 Saturn 1.5 11,402,800 454.6 2020 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2020 S 14 Saturn 1.5 16,078,400 761.16 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 15 Saturn 1.5 16,835,100 815.52 2020 2025 Ashton et al. Prograde irregular (Gallic)
S/2020 S 16 Saturn 1.5 17,123,200 836.55 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 17 Saturn 1.5 17,080,300 833.41 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 18 Saturn 1.5 17,780,100 885.15 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 19 Saturn 1.0 17,871,400 891.98 2020 2025 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2020 S 20 Saturn 1.5 18,133,100 911.64 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 21 Saturn 1.5 18,638,400 950.01 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 22 Saturn 1.5 19,230,200 995.61 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 23 Saturn 1.5 19,589,700 1,023.66 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 24 Saturn 1.0 20,633,100 1,106.53 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 25 Saturn 1.0 20,748,900 1,115.85 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 26 Saturn 1.5 21,541,200 1,180.37 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 27 Saturn 1.5 21,656,900 1,189.9 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 28 Saturn 1.5 22,512,300 1,261.08 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 29 Saturn 1.0 21,938,200 1,213.16 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 30 Saturn 1.5 21,351,300 1,164.79 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 31 Saturn 1.5 22,892,500 1,293.17 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 32 Saturn 1.5 21,397,500 1,168.58 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 33 Saturn 1.0 23,430,100 1,338.98 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 34 Saturn 1.5 22,873,000 1,291.52 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 35 Saturn 1.5 23,277,200 1,325.9 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 36 Saturn 1.5 23,272,100 1,325.46 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 37 Saturn 1.5 23,229,500 1,321.82 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 38 Saturn 2.0 23,609,000 1,354.35 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 39 Saturn 1.5 24,697,100 1,449.05 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 40 Saturn 1.5 23,311,800 1,328.86 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 41 Saturn 1.5 25,397,200 1,511.1 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 42 Saturn 1.5 24,750,100 1,453.72 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 43 Saturn 1.0 26,232,300 1,586.24 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2020 S 44 Saturn 1.0 28,043,800 1,753.36 (r) 2020 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 1 Saturn 1.5 11,207,800 442.99 2023 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2023 S 2 Saturn 1.5 11,310,900 449.12 2023 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2023 S 3 Saturn 1.5 17,617,600 873.04 2023 2025 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2023 S 4 Saturn 1.5 17,945,800 897.55 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 5 Saturn 1.5 25,010,600 1,476.73 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 6 Saturn 1.5 11,090,800 436.07 2023 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2023 S 7 Saturn 2.0 11,725,400 474.03 2023 2025 Ashton et al. Prograde irregular (Inuit) (Kiviuq)
S/2023 S 8 Saturn 1.5 14,327,600 640.29 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 9 Saturn 1.5 15,108,800 693.36 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 10 Saturn 1.5 15,426,700 715.36 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 11 Saturn 1.0 15,041,200 688.71 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 12 Saturn 1.0 15,806,900 741.97 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 13 Saturn 1.5 16,343,300 780.05 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 14 Saturn 1.0 17,170,800 840.04 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 15 Saturn 1.0 17,560,100 868.77 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 16 Saturn 1.0 17,246,200 845.58 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 17 Saturn 1.0 17,340,200 852.5 2023 2025 Ashton et al. Prograde irregular (Gallic)
S/2023 S 18 Saturn 1.0 17,229,200 844.33 2023 2025 Ashton et al. Prograde irregular (Gallic)
S/2023 S 19 Saturn 1.0 17,464,000 861.64 2023 2025 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2023 S 20 Saturn 1.5 18,004,000 901.92 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 21 Saturn 1.0 18,624,800 948.97 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 22 Saturn 1.5 18,428,000 933.97 2023 2025 Ashton et al. Prograde irregular (Inuit) (Siarnaq)
S/2023 S 23 Saturn 1.5 19,212,500 994.23 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 24 Saturn 1.5 19,340,900 1,004.22 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 25 Saturn 1.0 19,736,100 1,035.16 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 26 Saturn 1.0 20,308,700 1,080.53 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 27 Saturn 1.5 19,613,700 1,025.54 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 28 Saturn 1.0 20,032,700 1,058.58 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 29 Saturn 1.5 20,783,300 1,118.63 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 30 Saturn 1.5 21,318,800 1,162.14 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 31 Saturn 1.0 21,210,600 1,153.31 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 32 Saturn 1.0 21,035,300 1,139.03 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 33 Saturn 1.0 20,754,100 1,116.27 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 34 Saturn 1.5 21,370,100 1,166.33 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 35 Saturn 1.0 21,972,400 1,215.99 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 36 Saturn 1.0 21,856,400 1,206.38 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 37 Saturn 1.0 21,949,400 1,214.09 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 38 Saturn 1.0 21,849,300 1,205.78 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 39 Saturn 1.0 22,078,600 1,224.82 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 40 Saturn 1.0 22,318,600 1,244.84 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 41 Saturn 1.5 22,335,800 1,246.28 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 42 Saturn 1.5 22,403,800 1,251.98 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 43 Saturn 1.5 23,496,200 1,344.65 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 44 Saturn 1.5 26,287,700 1,591.27 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 45 Saturn 1.0 23,419,900 1,338.11 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 46 Saturn 1.0 25,366,500 1,508.36 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 47 Saturn 1.0 26,653,400 1,624.59 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 48 Saturn 1.5 20,439,300 1,090.97 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 49 Saturn 1.5 22,042,000 1,221.77 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
S/2023 S 50 Saturn 1.0 17,611,300 872.57 (r) 2023 2025 Ashton et al. Retrograde irregular (Norse)
Ariel Uranus I (1) 578.9±0.6 190,900 2.520 1851 1851 Lassell 14.8 Main-group moon
Umbriel Uranus II (2) 584.7±2.8 266,000 4.144 1851 1851 Lassell 15.1 Main-group moon
Titania Uranus III (3) 788.9±1.8 436,300 8.706 1787 1787 Herschel 13.9 Main-group moon
Oberon Uranus IV (4) 761.4±2.6 583,500 13.46 1787 1787 Herschel 14.1 Main-group moon
Miranda Uranus V (5) 235.8±0.7 129,900 1.413 1948 1949 Kuiper 16.6 Main-group moon
Cordelia Uranus VI (6) 20.1±3 49,800 0.335 1986 1986 Terrile (Voyager 2) 23.6 Inner moon (shepherd)
Ophelia Uranus VII (7) 21.4±4 53,800 0.376 1986 1986 Terrile (Voyager 2) 23.3 Inner moon (shepherd)
Bianca Uranus VIII (8) 25.7±2 59,200 0.435 1986 1986 Smith (Voyager 2) 22.5 Inner moon
Cressida Uranus IX (9) 39.8±2 61,800 0.464 1986 1986 Synnott (Voyager 2) 21.6 Inner moon
Desdemona Uranus X (10) 32±4 62,700 0.474 1986 1986 Synnott (Voyager 2) 22.0 Inner moon
Juliet Uranus XI (11) 46.8±4 64,400 0.493 1986 1986 Synnott (Voyager 2) 21.1 Inner moon
Portia Uranus XII (12) 67.6±4.0 66,100 0.513 1986 1986 Synnott (Voyager 2) 20.4 Inner moon
Rosalind Uranus XIII (13) 36±6 69,900 0.558 1986 1986 Synnott (Voyager 2) 21.8 Inner moon
Belinda Uranus XIV (14) 40.3±8 75,300 0.624 1986 1986 Synnott (Voyager 2) 21.5 Inner moon
Puck Uranus XV (15) 81±2 86,000 0.762 1985 1986 Synnott (Voyager 2) 20.5 Inner moon
Caliban Uranus XVI (16) 36.4 7,231,100 579.73 (r) 1997 1997 Gladman, Nicholson, Burns, Kavelaars 22.0 Retrograde irregular (Caliban)
Sycorax Uranus XVII (17) 93 12,179,400 1,288.38 (r) 1997 1997 Gladman, Nicholson, Burns, Kavelaars 20.8 Retrograde irregular
Prospero Uranus XVIII (18) 25 16,256,000 1,978.29 (r) 1999 1999 Gladman, Holman, Kavelaars, Petit, Scholl 23.2 Retrograde irregular
Setebos Uranus XIX (19) 24 17,418,000 2,225.21 (r) 1999 1999 Gladman, Holman, Kavelaars, Petit, Scholl 23.3 Retrograde irregular
Stephano Uranus XX (20) 16 8,004,000 677.36 (r) 1999 1999 Gladman, Holman, Kavelaars, Petit, Scholl 24.1 Retrograde irregular (Caliban)
Trinculo Uranus XXI (21) 9.5 8,504,000 749.24 (r) 2001 2002 Holman, Kavelaars, Milisavljevic 25.4 Retrograde irregular
Francisco Uranus XXII (22) 11 4,276,000 266.56 (r) 2001 2003 Holman, Kavelaars, Milisavljevic, Gladman 25.0 Retrograde irregular
Margaret Uranus XXIII (23) 10 14,345,000 1,687.01 2003 2003 Sheppard, Jewitt 25.2 Prograde irregular
Ferdinand Uranus XXIV (24) 10 20,901,000 2,887.21 (r) 2001 2003 Holman, Kavelaars, Milisavljevic, et al. 25.1 Retrograde irregular
Perdita Uranus XXV (25) 15 76,417 0.638 1986 1999/2003 Karkoschka (Voyager 2) 23.6 Inner moon
Mab Uranus XXVI (26) 12 97,736 0.923 2003 2003 Showalter, Lissauer 26 Inner moon
Cupid Uranus XXVII (27) 9 74,392 0.613 2003 2003 Showalter, Lissauer 25.8 Inner moon
S/2023 U 1 Uranus 4 7,978,000 680.76 (r) 2023 2024 Sheppard 26.7 Retrograde irregular (Caliban)
S/2025 U 1 Uranus 4–5 56250 ± 250 0.402 2025 2025 El Moutamid et al. 25.5 Inner moon
Triton Neptune I (1) 1,353.4±0.9 354,800 5.877 (r) 1846 1846 Lassell 13.47 Retrograde irregular
Nereid Neptune II (2) 178.5±13 5,513,820 360.14 1949 1949 Kuiper 19.2 Prograde irregular
Naiad Neptune III (3) 30.2 48,224 0.294 1989 1989 Terrile (Voyager 2) 23.91 Inner moon
Thalassa Neptune IV (4) 40.7 50,075 0.311 1989 1989 Terrile (Voyager 2) 23.32 Inner moon
Despina Neptune V (5) 78±4.7 52,526 0.335 1989 1989 Synnott (Voyager 2) 22.0 Inner moon
Galatea Neptune VI (6) 87.4 61,953 0.429 1989 1989 Synnott (Voyager 2) 21.9 Inner moon
Larissa Neptune VII (7) 97±3 73,548 0.555 1981/1989 1981/1989 Reitsema, Hubbard, Lebofsky, Tholen (Voyager 2) 21.5 Inner moon
Proteus Neptune VIII (8) 210±7 117,647 1.122 1989 1989 Synnott (Voyager 2) 19.7 Inner moon
Halimede Neptune IX (9) 31 15,728,000 1,879.71 (r) 2002 2003 Holman, Kavelaars, Grav, Fraser, Milisavljevic 24.5 Retrograde irregular
Psamathe Neptune X (10) 20 46,695,000 9,115.91 (r) 2003 2003 Jewitt, Kleyna, Sheppard, Holman, Kavelaars 25.5 Retrograde irregular (Neso)
Sao Neptune XI (11) 22 22,422,000 2,914.07 2002 2003 Holman, Kavelaars, Grav, Fraser, Milisavljevic 25.5 Prograde irregular (Sao)
Laomedeia Neptune XII (12) 21 23,571,000 3,167.85 2002 2003 Holman, Kavelaars, Grav, Fraser, Milisavljevic 25.5 Prograde irregular (Sao)
Neso Neptune XIII (13) 30 48,387,000 9,740.73 (r) 2002 2003 Holman, Kavelaars, Grav, Fraser, Milisavljevic 25.6 Retrograde irregular (Neso)
Hippocamp Neptune XIV (14) 17.4 105,283 0.9362 2004/2013 2013 Showalter et al. 26.5 Inner moon
S/2002 N 5 Neptune 19 23,365,200 3,141.26 2002 2024 Holman, Kavelaars, Grav, Fraser 25.9 Prograde irregular (Sao)
S/2021 N 1 Neptune 12.5 50,623,600 10,017.93 (r) 2021 2024 Sheppard, Tholen, Trujillo, Lykawka 27 Retrograde irregular (Neso)
Vanth Orcus I (1) 221±5 9,000±9 9.539 2005 2007 Brown & Suer 21.8 Synchronous rotation (Binary)
Charon Pluto I (1) 606±0.5 19,591 6.387 1978 1978 Christy 16.8 Synchronous rotation (Binary)
Nix Pluto II (2) 22.5 48,671 24.85 2005 2005 Weaver, Stern, Buie, et al. 23.37 to 23.7 Chaotic rotation
Hydra Pluto III (3) 27.5 64,698 38.20 2005 2005 Weaver, Stern, Buie, et al. 22.9 to 23.3 Chaotic rotation
Kerberos Pluto IV (4) 7 57,729 32.17 2011 2011 Showalter (Hubble) 26.1 Chaotic rotation
Styx Pluto V (5) 5.5 42,393 20.16 2012 2012 Showalter (Hubble) 27 Chaotic rotation
Hiʻiaka Haumea I (1) ≈160 49,880 49.12 2005 2005 Brown et al. 20.3 assuming a chaotic rotation
Namaka Haumea II (2) ≈85 25,657 18.2783 2005 2005 Brown et al. 21.9 assuming a chaotic rotation
Weywot Quaoar I (1) 40.5±5.5 14,500±800 12.438 2006 2007 Brown 24.7 Binary system
S/2015 (136472) 1 Makemake ≈87.5 >21,000 >12.4 2015 2016 Parker et al. 25.0
Xiangliu Gonggong I (1) <100 24,020±200 25.221 2010 2016 Marton, Kiss & Müller assuming a prograde orbit
Dysnomia Eris I (1) 350±60 37,273±64 15.786 2005 2005 Brown, Rabinowitz, Trujillo et al. 25.4 Synchronous rotation (Binary)

See also

Notes

  1. Apparent magnitudes sourced from the moon's respective Wikipedia page, some may be taken from German Wikipedia articles that include more information, some may be calculated based on absolute magnitudes.

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