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 [ b]
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 )[ 14]
Phobos
Mars I (1)
2.138 11.267 9,380 0.319
1877 1877 Hall
11.8 Synchronous rotation [ 15] [ 16] [ 17] [ 18]
Deimos
Mars II (2)
1.351 6.2± 0.1823,460 1.262
1877 1877 Hall
12.89 Synchronous rotation [ 15] [ 16] [ 17] [ 19]
Io
Jupiter I (1)
17.334 1,821.6± 0.5421,800 1.769
1610 1610 Galileo
5.02 Main-group moon (Galilean ) [ 17] [ 20] [ 21]
Europa
Jupiter II (2)
13.7 1,560.8± 0.5671,100 3.551
1610 1610 Galileo
5.29 Main-group moon (Galilean ) [ 17] [ 20] [ 21]
Ganymede
Jupiter III (3)
10.9 2,634.1± 0.31,070,400 7.155
1610 1610 Galileo
4.61 Main-group moon (Galilean ) [ 17] [ 20] [ 21]
Callisto
Jupiter IV (4)
8.2 2,410.3± 1.51,882,700 16.69
1610 1610 Galileo
5.65 Main-group moon (Galilean ) [ 17] [ 20] [ 21]
Amalthea
Jupiter V (5)
26.47 83.5± 2181,400 0.498
1892 1892 Barnard
14.1 Inner moon (Amalthea )[ 16] [ 17] [ 22] [ 23]
Himalia
Jupiter VI (6)
3.34 69.8 11,461,000 250.56
1904 1905 Perrine
14.6 Prograde irregular (Himalia ) [ 16] [ 17] [ 24] [ 25] [ 26]
Elara
Jupiter VII (7)
3.29 39.95 11,741,000 259.64
1905 1905 Perrine
16.6 Prograde irregular (Himalia ) [ 16] [ 17] [ 27] [ 28]
Pasiphae
Jupiter VIII (8)
(unsure) 28.9 23,624,000 743.63 (r)
1908 1908 Melotte
16.9 Retrograde irregular (Pasiphae ) [ 16] [ 17] [ 29]
Sinope
Jupiter IX (9)
2.258 17.5 23,939,000 758.90 (r)
1914 1914 Nicholson
18.3 Retrograde irregular (Pasiphae ) [ 16] [ 17] [ 30] [ 31]
Lysithea
Jupiter X (10)
3.29 21.1 11,717,000 259.20
1938 1938 Nicholson
18.2 Prograde irregular (Himalia ) [ 16] [ 17] [ 32] [ 33]
Carme
Jupiter XI (11)
2.281 23.3 23,404,000 734.17 (r)
1938 1938 Nicholson
18.9 Retrograde irregular (Carme ) [ 16] [ 17] [ 32]
Ananke
Jupiter XII (12)
-2.44 14.55 21,276,000 629.77 (r)
1951 1951 Nicholson
18.9 Retrograde irregular (Ananke ) [ 16] [ 17] [ 34]
Leda
Jupiter XIII (13)
10.75 11,165,000 240.92
1974 1974 Kowal
20.2 Prograde irregular (Himalia ) [ 16] [ 17] [ 35]
Thebe
Jupiter XIV (14)
23.92 49.3± 2.0221,900 0.675
1979 1980 Synnott (Voyager 1 )
15.7 Inner moon (Amalthea )[ 16] [ 17] [ 36]
Adrastea
Jupiter XV (15)
31.378 8.2± 2.0129,000 0.298
1979 1979 Jewitt , Danielson (Voyager 1 )
19.1 Inner moon (Amalthea )[ 16] [ 17] [ 37]
Metis
Jupiter XVI (16)
31.501 21.5± 2.0128,000 0.295
1979 1980 Synnott (Voyager 1 )
17.50 Inner moon (Amalthea )[ 16] [ 17] [ 38]
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 ) [ 16] [ 17] [ 39]
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) [ 16] [ 17] [ 40] [ 41]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 42]
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 ) [ 16] [ 17] [ 43]
Hermippe
Jupiter XXX (30)
2 21,131,000 633.9 (r)
2001 2002 Sheppard , Jewitt , Kleyna
22.1 Retrograde irregular (Ananke ) [ 16] [ 17] [ 43]
Aitne
Jupiter XXXI (31)
1.5 23,229,000 730.18 (r)
2001 2002 Sheppard , Jewitt , Kleyna
22.7 Retrograde irregular (Carme ) [ 16] [ 17] [ 43]
Eurydome
Jupiter XXXII (32)
1.5 22,865,000 717.33 (r)
2001 2002 Sheppard , Jewitt , Kleyna
22.7 Retrograde irregular (Pasiphae ) [ 16] [ 17] [ 43]
Euanthe
Jupiter XXXIII (33)
1.5 20,797,000 620.49 (r)
2001 2002 Sheppard , Jewitt , Kleyna
22.8 Retrograde irregular (Ananke ) [ 16] [ 17] [ 43]
Euporie
Jupiter XXXIV (34)
1 19,304,000 550.74 (r)
2001 2002 Sheppard , Jewitt , Kleyna
23.1 Retrograde irregular (Ananke ) [ 16] [ 17] [ 43]
Orthosie
Jupiter XXXV (35)
1 20,720,000 622.56 (r)
2001 2002 Sheppard , Jewitt , Kleyna
23.1 Retrograde irregular (Ananke ) [ 16] [ 17] [ 43]
Sponde
Jupiter XXXVI (36)
1 23,487,000 748.34 (r)
2001 2002 Sheppard , Jewitt , Kleyna
23.0 Retrograde irregular (Pasiphae ) [ 16] [ 17] [ 43]
Kale
Jupiter XXXVII (37)
1 23,217,000 729.47 (r)
2001 2002 Sheppard , Jewitt , Kleyna
23.0 Retrograde irregular (Carme ) [ 16] [ 17] [ 43]
Pasithee
Jupiter XXXVIII (38)
1 23,004,000 719.44 (r)
2001 2002 Sheppard , Jewitt , Kleyna
23.2 Retrograde irregular (Carme ) [ 16] [ 17] [ 43]
Hegemone
Jupiter XXXIX (39)
1.5 23,577,000 739.88 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández
22.8 Retrograde irregular (Pasiphae ) [ 16] [ 17]
Mneme
Jupiter XL (40)
1 21,035,000 620.04 (r)
2003 2003 Gladman , Allen
23.3 Retrograde irregular (Ananke ) [ 16] [ 17]
Aoede
Jupiter XLI (41)
2 23,980,000 761.50 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
22.5 Retrograde irregular (Pasiphae ) [ 16] [ 17]
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 ) [ 16] [ 17]
Arche
Jupiter XLIII (43)
1.5 23,355,000 731.95 (r)
2002 2002 Sheppard , Meech , Hsieh , Tholen , Tonry
22.8 Retrograde irregular (Carme ) [ 16] [ 17] [ 43]
Kallichore
Jupiter XLIV (44)
1 23,288,000 728.73 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández
23.7 Retrograde irregular (Carme ) [ 16] [ 17]
Helike
Jupiter XLV (45)
2 21,069,000 626.32 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
22.6 Retrograde irregular (Ananke ) [ 16] [ 17]
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) [ 16] [ 17]
Eukelade
Jupiter XLVII (47)
2 23,328,000 730.47 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
22.6 Retrograde irregular (Carme ) [ 16] [ 17]
Cyllene
Jupiter XLVIII (48)
1 23,809,000 752 (r)
2003 2003 Sheppard , Jewitt , Kleyna
23.2 Retrograde irregular (Pasiphae ) [ 16] [ 17]
Kore
Jupiter XLIX (49)
1 24,543,000 779.17 (r)
2003 2003 Sheppard , Jewitt , Kleyna
23.6 Retrograde irregular (Pasiphae ) [ 16] [ 17]
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 ) [ 16] [ 17]
S/2010 J 1
Jupiter LI (51)
1 23,314,300 723.2 (r)
2010 2011 Jacobson , Brozović , Gladman , Alexandersen
≈23 Retrograde irregular (Carme ) [ 44]
S/2010 J 2
Jupiter LII (52)
0.5 20,307,200 588.1 (r)
2010 2011 Veillet
24 Retrograde irregular (Ananke ) [ 44]
Dia
Jupiter LIII (53)
2 12,118,000 287.0
2000 2001 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
Prograde irregular (Himalia ) [ 44]
S/2016 J 1
Jupiter LIV (54)
1 20,595,500 602.7 (r)
2016 2017 Sheppard
≈24.2 Retrograde irregular (Ananke ) [ 44]
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 ) [ 44]
S/2011 J 2
Jupiter LVI (56)
0.5 23,329,700 726.8 (r)
2011 2012 Sheppard
23.5 Retrograde irregular (Pasiphae ) [ 44]
Eirene
Jupiter LVII (57)
2 23,731,800 759.7 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
22.4 Retrograde irregular (Carme ) [ 44]
Philophrosyne
Jupiter LVIII (58)
1 22,820,000 701.3 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández
23.5 Retrograde irregular (Pasiphae ) [ 44]
S/2017 J 1
Jupiter LIX (59)
2 23,484,000 734.2 (r)
2017 2017 Sheppard
≈23.8 Retrograde irregular (Pasiphae ) [ 44]
Eupheme
Jupiter LX (60)
1 21,199,710 627.8 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
23.4 Retrograde irregular (Ananke ) [ 44]
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 ) [ 44]
Valetudo
Jupiter LXII (62)
0.5 18,928,100 532.0
2016 2018 Sheppard
Prograde irregular (Valetudo) [ 44]
S/2017 J 2
Jupiter LXIII (63)
1 23,241,000 723.8 (r)
2017 2018 Sheppard
Retrograde irregular (Carme ) [ 44]
S/2017 J 3
Jupiter LXIV (64)
1 20,639,300 605.8 (r)
2017 2018 Sheppard
Retrograde irregular (Ananke ) [ 44]
Pandia
Jupiter LXV (65)
1.5 11,494,800 251.8
2017 2018 Sheppard
23.0 Prograde irregular (Himalia ) [ 44]
S/2017 J 5
Jupiter LXVI (66)
1 23,169,400 720.5 (r)
2017 2018 Sheppard
Retrograde irregular (Carme ) [ 44]
S/2017 J 6
Jupiter LXVII (67)
1 22,394,700 684.7 (r)
2017 2018 Sheppard
Retrograde irregular (Pasiphae ) [ 44]
S/2017 J 7
Jupiter LXVIII (68)
1 20,571,500 602.8 (r)
2017 2018 Sheppard
Retrograde irregular (Ananke ) [ 44]
S/2017 J 8
Jupiter LXIX (69)
0.5 23,174,400 720.7 (r)
2017 2018 Sheppard
Retrograde irregular (Carme ) [ 44]
S/2017 J 9
Jupiter LXX (70)
1 21,430,000 640.9 (r)
2017 2018 Sheppard
Retrograde irregular (Ananke ) [ 44]
Ersa
Jupiter LXXI (71)
1.5 11,453,000 250.4
2018 2018 Sheppard
Prograde irregular (Himalia ) [ 44]
S/2011 J 1
Jupiter LXXII (72)
0.5 20,155,300 580.7 (r)
2011 2012 Sheppard
23.7 Retrograde irregular (Carme ) [ 44]
S/2003 J 2
Jupiter —
1 20,554,400 602.02 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
23.2 Retrograde irregular (Ananke ) [ 16] [ 17]
S/2003 J 4
Jupiter —
1 22,048,600 668.85 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández , Hsieh
23 Retrograde irregular (Pasiphae ) [ 16] [ 17]
S/2003 J 9
Jupiter —
0.5 24,168,700 767.6 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández
23.7 Retrograde irregular (Carme ) [ 16] [ 45]
S/2003 J 10
Jupiter —
1 22,896,000 707.78 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández
23.6 Retrograde irregular (Carme ) [ 16] [ 17]
S/2003 J 12
Jupiter —
0.5 21,557,700 646.64 (r)
2003 2003 Sheppard , Jewitt , Kleyna , Fernández
23 Retrograde irregular (Ananke ) [ 16] [ 17]
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 ) [ 16] [ 46]
S/2003 J 23
Jupiter —
1 24,678,100 792.00 (r)
2003 2004 Sheppard , Jewitt , Kleyna , Fernández
23.6 Retrograde irregular (Pasiphae ) [ 16] [ 17]
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 ) [ 47]
S/2011 J 3
Jupiter —
1.5 11,797,200 261.77
2011 2022 Sheppard
23.1 Prograde irregular (Himalia ) [ 48]
S/2016 J 3
Jupiter —
1 22,213,500 676.37 (r)
2016 2023 Sheppard
23.6 Retrograde irregular (Carme ) [ 49]
S/2016 J 4
Jupiter —
1 23,664,100 743.69 (r)
2016 2023 Sheppard
24.0 Retrograde irregular (Pasiphae ) [ 50]
S/2017 J 10
Jupiter ―
2 21,523,400 645.09 (r)
2017 2025 Sheppard
Retrograde irregular (Ananke ) [ 51]
S/2017 J 11
Jupiter ―
2 22,742,300 700.66 (r)
2017 2025 Sheppard
Retrograde irregular (Carme ) [ 52]
S/2018 J 2
Jupiter —
1.5 11,467,500 250.88
2018 2022 Sheppard
23.3 Prograde irregular (Himalia ) [ 53]
S/2018 J 3
Jupiter —
0.5 22,826,600 704.56 (r)
2018 2023 Sheppard
23.9 Retrograde irregular (Carme ) [ 54]
S/2018 J 4
Jupiter —
1 16,504,300 433.16
2018 2023 Sheppard
23.5 Prograde irregular (Carpo) [ 55]
S/2021 J 1
Jupiter —
0.5 20,667,200 606.99 (r)
2021 2023 Sheppard
23.9 Retrograde irregular (Ananke ) [ 56]
S/2021 J 2
Jupiter —
0.5 21,140,600 627.96 (r)
2021 2023 Sheppard
24.0 Retrograde irregular (Ananke ) [ 57]
S/2021 J 3
Jupiter —
1 21,495,700 643.85 (r)
2021 2023 Sheppard
24.0 Retrograde irregular (Ananke ) [ 58]
S/2021 J 4
Jupiter —
0.5 22,946,700 710.13 (r)
2021 2023 Sheppard
24.0 Retrograde irregular (Carme ) [ 59]
S/2021 J 5
Jupiter —
1 22,831,800 704.80 (r)
2021 2023 Sheppard, Tholen, Trujillo
23.6 Retrograde irregular (Carme ) [ 60]
S/2021 J 6
Jupiter —
0.5 23,427,200 732.55 (r)
2021 2023 Sheppard, Tholen, Trujillo
23.9 Retrograde irregular (Carme ) [ 61]
S/2022 J 1
Jupiter —
0.5 22,015,500 667.34 (r)
2022 2023 Sheppard
23.8 Retrograde irregular (Carme ) [ 62]
S/2022 J 2
Jupiter —
0.5 22,413,200 685.51 (r)
2022 2023 Sheppard
24.0 Retrograde irregular (Carme ) [ 63]
S/2022 J 3
Jupiter —
0.5 20,912,400 617.82 (r)
2022 2023 Sheppard
24.0 Retrograde irregular (Ananke ) [ 64]
Mimas
Saturn I (1)
14.28 198.2± 0.4185,540 0.942
1789 1789 Herschel
12.9 Main-group moon [ 16] [ 17]
Enceladus
Saturn II (2)
252.1± 0.2238,040 1.370
1789 1789 Herschel
11.7 Main-group moon [ 16] [ 17]
Tethys
Saturn III (3)
11.35 533.1± 0.7294,670 1.888
1684 1686 Cassini
10.2 Main-group moon (Sidera Lodoicea ) [ 16] [ 17]
Dione
Saturn IV (4)
561.4± 0.4377,420 2.737
1684 1686 Cassini
10.4 Main-group moon (Sidera Lodoicea ) [ 16] [ 17]
Rhea
Saturn V (5)
8.48 763.8± 1.0527,070 4.518
1672 1673 Cassini
10 Main-group moon (Sidera Lodoicea ) [ 16] [ 17]
Titan
Saturn VI (6)
5.57 2,574.73± 0.091,221,870 15.95
1655 1656 Huygens
8.2 to 9.0 Main-group moon [ 16] [ 17]
Hyperion
Saturn VII (7)
135 1,500,880 21.28
1848 1848 W.Bond , G. Bond , and Lassell
14.1 Main-group moon [ 16] [ 17]
Iapetus
Saturn VIII (8)
3.26 735.6± 1.53,560,840 79.33
1671 1673 Cassini
10.2 to 11.9 Main-group moon (Sidera Lodoicea )
Brightest when west of Saturn every 40 days
[ 16] [ 17]
Phoebe
Saturn IX (9)
106.5± 0.712,947,780 550.31 (r)
1898 1899 Pickering
15.89 Retrograde irregular (Norse ) [ 16] [ 17]
Janus
Saturn X (10)
89.5± 1.4151,460 0.695
1966/1980 1967/1980 Dollfus ; Voyager 1 (confirmed)
14.4 Inner moon (co-orbital)[ 16] [ 17]
Epimetheus
Saturn XI (11)
58.1± 1.8151,410 0.694
1966/1980 1967/1980 Walker ; Voyager 1 (confirmed)
15.6 Inner moon (co-orbital)[ 16] [ 17]
Helene
Saturn XII (12)
17.6± 0.4377,420 2.737
1980 1980 Laques , Lecacheux
18.4 Main-group trojan [ 16] [ 17]
Telesto
Saturn XIII (13)
12.4± 0.4294,710 1.888
1980/1981 1980 Smith , Reitsema , Larson , Fountain (Voyager 1 )
18.7 Main-group trojan [ 16] [ 17]
Calypso
Saturn XIV (14)
10.7± 0.7294,710 1.888
1980/1981 1980 Pascu , Seidelmann , Baum , Currie
18.7 Main-group trojan [ 16] [ 17]
Atlas
Saturn XV (15)
15.1± 0.9137,670 0.602
1980 1980 Terrile (Voyager 1 )
19.0 Inner moon (shepherd )[ 16] [ 17]
Prometheus
Saturn XVI (16)
43.1± 2.7139,380 0.613
1980 1980 Collins (Voyager 1 )
15.8 Inner moon (shepherd )[ 16] [ 17]
Pandora
Saturn XVII (17)
40.7± 1.5141,720 0.629
1980 1980 Collins (Voyager 1 )
16.4 Inner moon (shepherd )[ 16] [ 17]
Pan
Saturn XVIII (18)
14.1 133,580 0.575
1981 1990 Showalter (Voyager 2 )
19.4 Inner moon (shepherd )[ 16] [ 17]
Ymir
Saturn XIX (19)
11 23,140,400 1,315.58 (r)
2000 2000 Gladman
Retrograde irregular (Norse ) [ 16] [ 17]
Paaliaq
Saturn XX (20)
14.5 15,200,000 686.95
2000 2000 Gladman
Prograde irregular (Inuit ) (Paaliaq) [ 16] [ 17]
Tarvos
Saturn XXI (21)
7.5 17,983,000 926.23
2000 2000 Gladman , Kavelaars
Prograde irregular (Gallic ) [ 16] [ 17]
Ijiraq
Saturn XXII (22)
6 11,124,000 451.42
2000 2000 Gladman , Kavelaars
Prograde irregular (Inuit ) (Kiviuq) [ 16] [ 17]
Suttungr
Saturn XXIII (23)
3.5 19,459,000 1,016.67 (r)
2000 2000 Gladman , Kavelaars
Retrograde irregular (Norse ) [ 16] [ 17]
Kiviuq
Saturn XXIV (24)
8 11,110,000 449.22
2000 2000 Gladman
Prograde irregular (Inuit ) (Kiviuq) [ 16] [ 17]
Mundilfari
Saturn XXV (25)
3.5 18,628,000 952.77 (r)
2000 2000 Gladman , Kavelaars
Retrograde irregular (Norse ) [ 16] [ 17]
Albiorix
Saturn XXVI (26)
14.3 16,182,000 783.45
2000 2000 Holman , Spahr
Prograde irregular (Gallic ) [ 16] [ 17]
Skathi
Saturn XXVII (27)
4 15,540,000 728.20 (r)
2000 2000 Gladman , Kavelaars
Retrograde irregular (Norse ) [ 16] [ 17]
Erriapus
Saturn XXVIII (28)
5 17,343,000 871.19
2000 2000 Gladman , Kavelaars
Prograde irregular (Gallic ) [ 16] [ 17]
Siarnaq
Saturn XXIX (29)
19.65 18,015,400 896.44
2000 2000 Gladman , Kavelaars
Prograde irregular (Inuit ) (Siarnaq) [ 16] [ 17]
Thrymr
Saturn XXX (30)
3.5 20,314,000 1,094.11 (r)
2000 2000 Gladman , Kavelaars
Retrograde irregular (Norse ) [ 16] [ 17]
Narvi
Saturn XXXI (31)
3.5 19,007,000 1,003.86 (r)
2003 2003 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 16] [ 17]
Methone
Saturn XXXII (32)
1.45 194,440 1.010
2004 2004 Porco , Charnoz , Brahic , Dones (Cassini–Huygens )
Alkyonide moon [ 17]
Pallene
Saturn XXXIII (33)
2.22 212,280 1.154
1981/2004 2004 Gordon , Murray , Beurle , et al. (Cassini–Huygens )
Alkyonide moon [ 17]
Polydeuces
Saturn XXXIV (34)
1.3 377,200 2.737
2004 2004 Porco et al. (Cassini–Huygens )
Main-group trojan [ 17]
Daphnis
Saturn XXXV (35)
3.8± 0.8136,500 0.594
2005 2005 Porco et al. (Cassini–Huygens )
Inner moon (shepherd )[ 17]
Aegir
Saturn XXXVI (36)
3 20,751,000 1,117.52 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
Bebhionn
Saturn XXXVII (37)
3 17,119,000 834.84
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Prograde irregular (Gallic ) [ 16] [ 17]
Bergelmir
Saturn XXXVIII (38)
3 19,336,000 1,005.74 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
Bestla
Saturn XXXIX (39)
3.5 20,192,000 1,088.72 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
Farbauti
Saturn XL (40)
2.5 20,377,000 1,085.55 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
24.7 Retrograde irregular (Norse ) [ 16] [ 17]
Fenrir
Saturn XLI (41)
2 22,454,000 1,260.35 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
25.0 Retrograde irregular (Norse ) [ 16] [ 17]
Fornjot
Saturn XLII (42)
3 25,146,000 1,494.2 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
24.6 Retrograde irregular (Norse ) [ 16] [ 17]
Hati
Saturn XLIII (43)
3 19,846,000 1,038.61 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
24.4 Retrograde irregular (Norse ) [ 16] [ 17]
Hyrrokkin
Saturn XLIV (44)
4 18,437,000 931.86 (r)
2004 2006 Sheppard , Jewitt , Kleyna
23.5 Retrograde irregular (Norse ) [ 17]
Kari
Saturn XLV (45)
3.5 22,089,000 1,230.97 (r)
2006 2006 Sheppard , Jewitt , Kleyna
23.9 Retrograde irregular (Norse ) [ 17]
Loge
Saturn XLVI (46)
3 23,058,000 1,311.36 (r)
2006 2006 Sheppard , Jewitt , Kleyna
24.6 Retrograde irregular (Norse ) [ 17]
Skoll
Saturn XLVII (47)
3 17,665,000 878.29 (r)
2006 2006 Sheppard , Jewitt , Kleyna
24.5 Retrograde irregular (Norse ) [ 17]
Surtur
Saturn XLVIII (48)
3 22,704,000 1,297.36 (r)
2006 2006 Sheppard , Jewitt , Kleyna
24.8 Retrograde irregular (Norse ) [ 17]
Anthe
Saturn XLIX (49)
0.9 197,700 1.0365
2007 2007 Porco et al. (Cassini–Huygens )
Alkyonide moon [ 65]
Jarnsaxa
Saturn L (50)
3 18,811,000 964.74 (r)
2006 2006 Sheppard , Jewitt , Kleyna
24.7 Retrograde irregular (Norse ) [ 17]
Greip
Saturn LI (51)
3 18,206,000 921.19 (r)
2006 2006 Sheppard , Jewitt , Kleyna
24.4 Retrograde irregular (Norse ) [ 17]
Tarqeq
Saturn LII (52)
3.5 18,009,000 887.48
2007 2007 Sheppard , Jewitt , Kleyna
23.9 Prograde irregular (Inuit ) (Siarnaq) [ 17]
Aegaeon
Saturn LIII (53)
0.33 167,500 0.808
2008 2009 Cassini Imaging Science Team Cassini–Huygens
G-ring moonlet [ 66] [ 67]
Gridr
Saturn LIV (54)
3 19,418,000 1,010.55 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 68]
Angrboda
Saturn LV (55)
3 20,636,000 1,107.13 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 69]
Skrymir
Saturn LVI (56)
4 21,163,000 1,149.82 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 70]
Gerd
Saturn LVII (57)
4 21,174,000 1,150.69 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 71]
S/2004 S 26
Saturn LVIII (58)
4 26,676,000 1,627.18 (r)
2004 2019 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 72]
Eggther
Saturn LIX (59)
6 19,976,000 1,054.45 (r)
2004 2019 Sheppard , Jewitt , Kleyna , Marsden , Jacobson
Retrograde irregular (Norse ) [ 73]
S/2004 S 29
Saturn LX (60)
4 16,981,000 826.44
2004 2019 Sheppard , Jewitt , Kleyna , Marsden
Prograde irregular (Gallic ) [ 74]
Beli
Saturn LXI (61)
3 20,396,000 1,087.84 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 75]
Gunnlod
Saturn LXII (62)
4 21,214,000 1,153.96 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 76]
Thiazzi
Saturn LXIII (63)
4 24,168,000 1,403.18 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 77]
S/2004 S 34
Saturn LXIV (64)
3 24,299,000 1,414.59 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 78]
Alvaldi
Saturn LXV (65)
6 22,412,000 1,253.08 (r)
2004 2019 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 79]
Geirrod
Saturn LXVI (66)
4 21,908,000 1,211.02 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 80]
S/2004 S 7
Saturn —
3 20,999,000 1,140.24 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
S/2004 S 12
Saturn —
2.5 19,878,000 1,046.19 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
S/2004 S 13
Saturn —
3 18,404,000 933.48 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
S/2004 S 17
Saturn —
2 19,447,000 1,014.70 (r)
2004 2005 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 16] [ 17]
S/2004 S 21
Saturn —
3 22,645,000 1,272.61 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 81]
S/2004 S 24
Saturn —
3 22,901,000 1,294.25
2004 2019 Sheppard , Jewitt , Kleyna , Marsden
Prograde irregular (group unknown, possibly Gallic ) [ 82]
S/2004 S 28
Saturn —
4 22,020,000 1,220.31 (r)
2004 2019 Sheppard , Jewitt , Kleyna , Marsden
Retrograde irregular (Norse ) [ 83]
S/2004 S 31
Saturn —
4 17,568,000 869.65
2004 2019 Sheppard , Jewitt , Kleyna , Marsden
Prograde irregular (Inuit ) (Siarnaq) [ 84]
S/2004 S 36
Saturn —
3 23,192,000 1,319.07 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 85]
S/2004 S 37
Saturn —
4 15,892,000 748.18 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 86]
S/2004 S 39
Saturn —
3 23,575,000 1,351.83 (r)
2004 2019 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 87]
S/2004 S 40
Saturn —
2 16,075,600 765.92 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 88]
S/2004 S 41
Saturn —
2 18,095,000 895.76 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 89]
S/2004 S 42
Saturn —
2 18,240,800 910.61 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 90]
S/2004 S 43
Saturn —
2 18,935,000 971.48 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 91]
S/2004 S 44
Saturn —
2.5 19,515,400 1,014.98 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 92]
S/2004 S 45
Saturn —
2 19,693,600 1,058.95 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 93]
S/2004 S 46
Saturn —
1.5 20,513,000 1,107.57 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 94]
S/2004 S 47
Saturn —
2 16,050,600 755.69 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 95]
S/2004 S 48
Saturn —
2 22,136,700 1,248.52 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 96]
S/2004 S 49
Saturn —
2 22,399,700 1,290.34 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 97]
S/2004 S 50
Saturn —
1.5 22,346,000 1,219.11 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 98]
S/2004 S 51
Saturn —
2 25,208,200 1,544.65 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 99]
S/2004 S 52
Saturn —
1.5 26,448,100 1,573.49 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 100]
S/2004 S 53
Saturn —
2 23,279,800 1,367.72 (r)
2004 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 101]
S/2004 S 54
Saturn —
2.0 11,265,600 446.42
2004 2025 Sheppard et al.
Prograde irregular (Inuit ) (Kiviuq) [ 102]
S/2004 S 55
Saturn —
1.5 11,319,500 449.63
2004 2025 Sheppard et al.
Prograde irregular (Inuit ) (Kiviuq) [ 102]
S/2004 S 56
Saturn —
2.0 13,661,000 596.13 (r)
2004 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2004 S 57
Saturn —
1.5 18,119,300 910.59 (r)
2004 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2004 S 58
Saturn —
2.0 18,170,500 914.46
2004 2025 Sheppard et al.
Prograde irregular (Inuit ) (Siarnaq) [ 102]
S/2004 S 59
Saturn —
1.5 19,099,100 985.45 (r)
2004 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2004 S 60
Saturn —
1.5 19,420,700 1,010.44 (r)
2004 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2004 S 61
Saturn —
1.5 20,893,400 1,127.53 (r)
2004 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2005 S 4
Saturn —
2.5 11,324,500 448.63
2005 2023 Sheppard et al.
Prograde irregular (Inuit ) (Kiviuq) [ 103]
S/2005 S 5
Saturn —
1.5 21,366,200 1,138.62 (r)
2005 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 104]
S/2005 S 6
Saturn —
1.5 17,931,200 896.45
2005 2025 Sheppard et al.
Prograde irregular (Inuit ) (Siarnaq) [ 102]
S/2005 S 7
Saturn —
1.5 18,734,500 957.36
2005 2025 Sheppard et al.
Prograde irregular (Gallic ) [ 102]
S/2006 S 1
Saturn —
3 18,790,000 963.37 (r)
2006 2006 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 17]
S/2006 S 3
Saturn —
3 22,096,000 1,227.21 (r)
2006 2006 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 17]
S/2006 S 9
Saturn —
1.5 14,406,600 648.71 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 105]
S/2006 S 10
Saturn —
1.5 18,979,900 965.26 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 106]
S/2006 S 11
Saturn —
1.5 19,711,900 1,018.45 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 107]
S/2006 S 12
Saturn —
2 19,569,800 1,043.16
2006 2023 Sheppard et al.
Prograde irregular (Gallic ) [ 108]
S/2006 S 13
Saturn —
2 19,953,800 1,061.74 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 109]
S/2006 S 14
Saturn —
1.5 21,062,100 1,150.64 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 110]
S/2006 S 15
Saturn —
2 21,799,400 1,183.57 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 111]
S/2006 S 16
Saturn —
1.5 21,720,700 1,217.36 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 112]
S/2006 S 17
Saturn —
2 22,384,900 1,262.48 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 113]
S/2006 S 18
Saturn —
2 22,760,700 1,324.09 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 114]
S/2006 S 19
Saturn —
2 23,801,100 1,324.68 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 115]
S/2006 S 20
Saturn —
2.5 13,193,800 563.89 (r)
2006 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 116]
S/2006 S 21
Saturn —
1.5 15,047,400 689.14 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 22
Saturn —
1.5 15,139,000 695.44 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 23
Saturn —
1.5 18,176,200 914.89
2006 2025 Sheppard et al.
Prograde irregular (Inuit ) (Siarnaq) [ 102]
S/2006 S 24
Saturn —
1.0 18,143,200 912.4 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 25
Saturn —
1.5 18,384,900 930.69 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 26
Saturn —
1.5 18,655,900 951.35 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 27
Saturn —
1.5 19,422,100 1,010.55 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 28
Saturn —
1.5 22,361,800 1,248.46 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2006 S 29
Saturn —
1.5 25,925,400 1,558.48 (r)
2006 2025 Sheppard et al.
Retrograde irregular (Norse ) [ 102]
S/2007 S 2
Saturn —
3 16,725,000 808.08 (r)
2007 2007 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 17]
S/2007 S 3
Saturn —
3 18,975,000 977.8 (r)
2007 2007 Sheppard , Jewitt , Kleyna
Retrograde irregular (Norse ) [ 17]
S/2007 S 5
Saturn —
2 15,835,700 748.50 (r)
2007 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 117]
S/2007 S 6
Saturn —
1.5 18,544,900 944.31 (r)
2007 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 118]
S/2007 S 7
Saturn —
2 15,931,700 742.79 (r)
2007 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 119]
S/2007 S 8
Saturn —
2 17,049,000 826.94
2007 2023 Sheppard et al.
Prograde irregular (Gallic ) [ 120]
S/2007 S 9
Saturn —
2 20,174,600 1,099.69 (r)
2007 2023 Sheppard et al.
Retrograde irregular (Norse ) [ 121]
S/2007 S 10
Saturn —
2.0 11,380,300 453.26
2007 2025 Sheppard et al.
Prograde irregular (Inuit ) (Kiviuq) [ 102]
S/2007 S 11
Saturn —
1.5 17,602,900 871.95
2007 2025 Sheppard et al.
Prograde irregular (Gallic ) [ 102]
S/2009 S 1
Saturn —
0.15 117,000 0.471
2009 2009 Cassini Imaging Science Team Cassini–Huygens
B-ring moonlet [ 122]
S/2019 S 1
Saturn —
3 11,221,000 443.8
2019 2021 Ashton, Gladman , Petit, Alexandersen
Prograde irregular (Inuit ) (Kiviuq) [ 123]
S/2019 S 2
Saturn —
1.5 16,559,900 796.22 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 124]
S/2019 S 3
Saturn —
2 17,077,200 836.68 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 125]
S/2019 S 4
Saturn —
1.5 17,956,700 898.40 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 126]
S/2019 S 5
Saturn —
1.5 19,076,900 971.54 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 127]
S/2019 S 6
Saturn —
2 18,198,700 905.41
2019 2023 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 128]
S/2019 S 7
Saturn —
2 20,181,300 1,093.86 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 129]
S/2019 S 8
Saturn —
2 20,284,400 1,080.60 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 130]
S/2019 S 9
Saturn —
2 20,359,000 1,104.27 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 131]
S/2019 S 10
Saturn —
1.5 20,713,400 1,129.53 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 132]
S/2019 S 11
Saturn —
2 20,663,700 1,097.33 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 133]
S/2019 S 12
Saturn —
2 20,904,500 1,130.40 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 134]
S/2019 S 13
Saturn —
1.5 20,965,800 1,132.90 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 135]
S/2019 S 14
Saturn —
2 17,853,000 902.00
2019 2023 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 136]
S/2019 S 15
Saturn —
1.5 21,189,700 1,156.21 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 137]
S/2019 S 16
Saturn —
1.5 23,266,700 1,360.26 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 138]
S/2019 S 17
Saturn —
2 22,724,100 1,322.15 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 139]
S/2019 S 18
Saturn —
1.5 23,140,700 1,349.74 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 140]
S/2019 S 19
Saturn —
1.5 23,047,200 1,342.57 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 141]
S/2019 S 20
Saturn —
1.5 23,678,600 1,343.58 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 142]
S/2019 S 21
Saturn —
2 26,439,000 1,572.06 (r)
2019 2023 Ashton et al.
Retrograde irregular (Norse ) [ 143]
S/2019 S 22
Saturn —
1.5 11,280,600 447.31
2019 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2019 S 23
Saturn —
1.5 11,288,800 447.8
2019 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2019 S 24
Saturn —
2.0 11,361,100 452.11
2019 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 102]
S/2019 S 25
Saturn —
1.5 11,306,800 448.87
2019 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 102]
S/2019 S 26
Saturn —
1.5 11,401,300 454.51
2019 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2019 S 27
Saturn —
1.5 16,179,300 768.34 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2019 S 28
Saturn —
1.5 17,684,100 877.99 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2019 S 29
Saturn —
1.5 17,345,000 852.85
2019 2025 Ashton et al.
Prograde irregular (Gallic ) [ 102]
S/2019 S 30
Saturn —
1.0 17,828,600 888.77 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2019 S 31
Saturn —
1.5 17,791,000 885.96
2019 2025 Ashton et al.
Prograde irregular (Gallic ) [ 102]
S/2019 S 32
Saturn —
2.0 17,712,200 880.08
2019 2025 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 144]
S/2019 S 33
Saturn —
1.5 18,930,200 972.41 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2019 S 34
Saturn —
1.5 18,317,400 925.57
2019 2025 Ashton et al.
Prograde irregular (Gallic ) [ 102]
S/2019 S 35
Saturn —
1.5 18,429,200 934.06 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2019 S 36
Saturn —
1.0 20,076,300 1,062.04 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2019 S 37
Saturn —
1.5 19,980,000 1,054.4 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2019 S 38
Saturn —
1.5 22,356,200 1,247.99 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2019 S 39
Saturn —
1.5 24,139,800 1,400.28 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2019 S 40
Saturn —
1.5 24,549,100 1,436.04 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2019 S 41
Saturn —
1.0 24,773,800 1,455.81 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2019 S 42
Saturn —
2.0 23,850,100 1,375.15 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2019 S 43
Saturn —
1.5 27,185,300 1,673.46 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2019 S 44
Saturn —
1.5 26,083,200 1,572.74 (r)
2019 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 1
Saturn —
2 11,338,700 450.83
2020 2023 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 146]
S/2020 S 2
Saturn —
1.5 17,869,300 907.00 (r)
2020 2023 Ashton et al.
Retrograde irregular (Norse ) [ 147]
S/2020 S 3
Saturn —
1.5 18,054,700 896.35
2020 2023 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 148]
S/2020 S 4
Saturn —
1.5 18,235,500 910.34
2020 2023 Ashton et al.
Prograde irregular (Gallic ) [ 149]
S/2020 S 5
Saturn —
1.5 18,391,300 933.52
2020 2023 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 150]
S/2020 S 6
Saturn —
1.5 21,265,300 1,149.11 (r)
2020 2023 Ashton et al.
Retrograde irregular (Norse ) [ 151]
S/2020 S 7
Saturn —
1.5 17,400,000 844.85 (r)
2020 2023 Ashton et al.
Retrograde irregular (Norse ) [ 152]
S/2020 S 8
Saturn —
1.5 21,966,700 1,201.72 (r)
2020 2023 Ashton et al.
Retrograde irregular (Norse ) [ 153]
S/2020 S 9
Saturn —
2 25,434,100 1,565.23 (r)
2020 2023 Ashton et al.
Retrograde irregular (Norse ) [ 154]
S/2020 S 10
Saturn —
1.5 25,314,800 1,479.87 (r)
2020 2023 Ashton et al.
Retrograde irregular (Norse ) [ 155]
S/2020 S 11
Saturn —
1.0 11,298,100 448.35
2020 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2020 S 12
Saturn —
1.0 11,330,300 450.27
2020 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2020 S 13
Saturn —
1.5 11,402,800 454.6
2020 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2020 S 14
Saturn —
1.5 16,078,400 761.16 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 15
Saturn —
1.5 16,835,100 815.52
2020 2025 Ashton et al.
Prograde irregular (Gallic ) [ 145]
S/2020 S 16
Saturn —
1.5 17,123,200 836.55 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 17
Saturn —
1.5 17,080,300 833.41 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 18
Saturn —
1.5 17,780,100 885.15 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 19
Saturn —
1.0 17,871,400 891.98
2020 2025 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 144]
S/2020 S 20
Saturn —
1.5 18,133,100 911.64 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 21
Saturn —
1.5 18,638,400 950.01 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 22
Saturn —
1.5 19,230,200 995.61 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 23
Saturn —
1.5 19,589,700 1,023.66 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 24
Saturn —
1.0 20,633,100 1,106.53 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 25
Saturn —
1.0 20,748,900 1,115.85 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 26
Saturn —
1.5 21,541,200 1,180.37 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2020 S 27
Saturn —
1.5 21,656,900 1,189.9 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 102]
S/2020 S 28
Saturn —
1.5 22,512,300 1,261.08 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 29
Saturn —
1.0 21,938,200 1,213.16 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 30
Saturn —
1.5 21,351,300 1,164.79 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 31
Saturn —
1.5 22,892,500 1,293.17 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 32
Saturn —
1.5 21,397,500 1,168.58 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 33
Saturn —
1.0 23,430,100 1,338.98 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 34
Saturn —
1.5 22,873,000 1,291.52 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 35
Saturn —
1.5 23,277,200 1,325.9 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 36
Saturn —
1.5 23,272,100 1,325.46 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 37
Saturn —
1.5 23,229,500 1,321.82 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 38
Saturn —
2.0 23,609,000 1,354.35 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 39
Saturn —
1.5 24,697,100 1,449.05 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 40
Saturn —
1.5 23,311,800 1,328.86 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2020 S 41
Saturn —
1.5 25,397,200 1,511.1 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 42
Saturn —
1.5 24,750,100 1,453.72 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 43
Saturn —
1.0 26,232,300 1,586.24 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2020 S 44
Saturn —
1.0 28,043,800 1,753.36 (r)
2020 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 1
Saturn —
1.5 11,207,800 442.99
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2023 S 2
Saturn —
1.5 11,310,900 449.12
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2023 S 3
Saturn —
1.5 17,617,600 873.04
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 144]
S/2023 S 4
Saturn —
1.5 17,945,800 897.55 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 5
Saturn —
1.5 25,010,600 1,476.73 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 6
Saturn —
1.5 11,090,800 436.07
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2023 S 7
Saturn —
2.0 11,725,400 474.03
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Kiviuq) [ 144]
S/2023 S 8
Saturn —
1.5 14,327,600 640.29 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 9
Saturn —
1.5 15,108,800 693.36 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 10
Saturn —
1.5 15,426,700 715.36 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 11
Saturn —
1.0 15,041,200 688.71 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 12
Saturn —
1.0 15,806,900 741.97 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 13
Saturn —
1.5 16,343,300 780.05 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 14
Saturn —
1.0 17,170,800 840.04 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 15
Saturn —
1.0 17,560,100 868.77 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 16
Saturn —
1.0 17,246,200 845.58 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 17
Saturn —
1.0 17,340,200 852.5
2023 2025 Ashton et al.
Prograde irregular (Gallic ) [ 144]
S/2023 S 18
Saturn —
1.0 17,229,200 844.33
2023 2025 Ashton et al.
Prograde irregular (Gallic ) [ 144]
S/2023 S 19
Saturn —
1.0 17,464,000 861.64
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 144]
S/2023 S 20
Saturn —
1.5 18,004,000 901.92 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 21
Saturn —
1.0 18,624,800 948.97 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 22
Saturn —
1.5 18,428,000 933.97
2023 2025 Ashton et al.
Prograde irregular (Inuit ) (Siarnaq) [ 144]
S/2023 S 23
Saturn —
1.5 19,212,500 994.23 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 24
Saturn —
1.5 19,340,900 1,004.22 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 25
Saturn —
1.0 19,736,100 1,035.16 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 26
Saturn —
1.0 20,308,700 1,080.53 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 27
Saturn —
1.5 19,613,700 1,025.54 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 28
Saturn —
1.0 20,032,700 1,058.58 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 29
Saturn —
1.5 20,783,300 1,118.63 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 30
Saturn —
1.5 21,318,800 1,162.14 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 31
Saturn —
1.0 21,210,600 1,153.31 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 32
Saturn —
1.0 21,035,300 1,139.03 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 33
Saturn —
1.0 20,754,100 1,116.27 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 34
Saturn —
1.5 21,370,100 1,166.33 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 35
Saturn —
1.0 21,972,400 1,215.99 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 36
Saturn —
1.0 21,856,400 1,206.38 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 37
Saturn —
1.0 21,949,400 1,214.09 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 38
Saturn —
1.0 21,849,300 1,205.78 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 39
Saturn —
1.0 22,078,600 1,224.82 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 40
Saturn —
1.0 22,318,600 1,244.84 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 41
Saturn —
1.5 22,335,800 1,246.28 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 42
Saturn —
1.5 22,403,800 1,251.98 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 43
Saturn —
1.5 23,496,200 1,344.65 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 44
Saturn —
1.5 26,287,700 1,591.27 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 45
Saturn —
1.0 23,419,900 1,338.11 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 46
Saturn —
1.0 25,366,500 1,508.36 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 47
Saturn —
1.0 26,653,400 1,624.59 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 48
Saturn —
1.5 20,439,300 1,090.97 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 145]
S/2023 S 49
Saturn —
1.5 22,042,000 1,221.77 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
S/2023 S 50
Saturn —
1.0 17,611,300 872.57 (r)
2023 2025 Ashton et al.
Retrograde irregular (Norse ) [ 144]
Ariel
Uranus I (1)
578.9± 0.6190,900 2.520
1851 1851 Lassell
14.8 Main-group moon [ 16] [ 17]
Umbriel
Uranus II (2)
584.7± 2.8266,000 4.144
1851 1851 Lassell
15.1 Main-group moon [ 16] [ 17]
Titania
Uranus III (3)
788.9± 1.8436,300 8.706
1787 1787 Herschel
13.9 Main-group moon [ 16] [ 17]
Oberon
Uranus IV (4)
761.4± 2.6583,500 13.46
1787 1787 Herschel
14.1 Main-group moon [ 16] [ 17]
Miranda
Uranus V (5)
235.8± 0.7129,900 1.413
1948 1949 Kuiper
16.6 Main-group moon [ 16] [ 17]
Cordelia
Uranus VI (6)
20.1± 349,800 0.335
1986 1986 Terrile (Voyager 2 )
23.6 Inner moon (shepherd )[ 16] [ 17]
Ophelia
Uranus VII (7)
21.4± 453,800 0.376
1986 1986 Terrile (Voyager 2 )
23.3 Inner moon (shepherd )[ 16] [ 17]
Bianca
Uranus VIII (8)
25.7± 259,200 0.435
1986 1986 Smith (Voyager 2 )
22.5 Inner moon [ 16] [ 17]
Cressida
Uranus IX (9)
39.8± 261,800 0.464
1986 1986 Synnott (Voyager 2 )
21.6 Inner moon [ 16] [ 17]
Desdemona
Uranus X (10)
32± 462,700 0.474
1986 1986 Synnott (Voyager 2 )
22.0 Inner moon [ 16] [ 17]
Juliet
Uranus XI (11)
46.8± 464,400 0.493
1986 1986 Synnott (Voyager 2 )
21.1 Inner moon [ 16] [ 17]
Portia
Uranus XII (12)
67.6± 4.066,100 0.513
1986 1986 Synnott (Voyager 2 )
20.4 Inner moon [ 16] [ 17]
Rosalind
Uranus XIII (13)
36± 669,900 0.558
1986 1986 Synnott (Voyager 2 )
21.8 Inner moon [ 16] [ 17]
Belinda
Uranus XIV (14)
40.3± 875,300 0.624
1986 1986 Synnott (Voyager 2 )
21.5 Inner moon [ 16] [ 17]
Puck
Uranus XV (15)
81± 286,000 0.762
1985 1986 Synnott (Voyager 2 )
20.5 Inner moon [ 16] [ 17]
Caliban
Uranus XVI (16)
36.4 7,231,100 579.73 (r)
1997 1997 Gladman , Nicholson , Burns , Kavelaars
22.0 Retrograde irregular (Caliban) [ 156] [ 17]
Sycorax
Uranus XVII (17)
93 12,179,400 1,288.38 (r)
1997 1997 Gladman , Nicholson , Burns , Kavelaars
20.8 Retrograde irregular [ 156] [ 17]
Prospero
Uranus XVIII (18)
25 16,256,000 1,978.29 (r)
1999 1999 Gladman , Holman , Kavelaars , Petit , Scholl
23.2 Retrograde irregular [ 16] [ 17]
Setebos
Uranus XIX (19)
24 17,418,000 2,225.21 (r)
1999 1999 Gladman , Holman , Kavelaars , Petit , Scholl
23.3 Retrograde irregular [ 16] [ 17]
Stephano
Uranus XX (20)
16 8,004,000 677.36 (r)
1999 1999 Gladman , Holman , Kavelaars , Petit , Scholl
24.1 Retrograde irregular (Caliban) [ 16] [ 17]
Trinculo
Uranus XXI (21)
9.5 8,504,000 749.24 (r)
2001 2002 Holman , Kavelaars , Milisavljevic
25.4 Retrograde irregular [ 16] [ 17]
Francisco
Uranus XXII (22)
11 4,276,000 266.56 (r)
2001 2003 Holman , Kavelaars , Milisavljevic , Gladman
25.0 Retrograde irregular [ 16] [ 17]
Margaret
Uranus XXIII (23)
10 14,345,000 1,687.01
2003 2003 Sheppard , Jewitt
25.2 Prograde irregular [ 16] [ 17]
Ferdinand
Uranus XXIV (24)
10 20,901,000 2,887.21 (r)
2001 2003 Holman , Kavelaars , Milisavljevic , et al.
25.1 Retrograde irregular [ 16] [ 17]
Perdita
Uranus XXV (25)
15 76,417 0.638
1986 1999/2003 Karkoschka (Voyager 2 )
23.6 Inner moon [ 17]
Mab
Uranus XXVI (26)
12 97,736 0.923
2003 2003 Showalter , Lissauer
26 Inner moon [ 17]
Cupid
Uranus XXVII (27)
9 74,392 0.613
2003 2003 Showalter , Lissauer
25.8 Inner moon [ 17]
S/2023 U 1
Uranus ―
4 7,978,000 680.76 (r) 2023 2024 Sheppard
26.7 Retrograde irregular (Caliban) [ 157]
Triton
Neptune I (1)
1,353.4± 0.9354,800 5.877 (r)
1846 1846 Lassell
13.47 Retrograde irregular [ 16] [ 17]
Nereid
Neptune II (2)
178.5± 135,513,820 360.14
1949 1949 Kuiper
19.2 Prograde irregular [ 158] [ 17]
Naiad
Neptune III (3)
30.248,224 0.294
1989 1989 Terrile (Voyager 2 )
23.91 Inner moon [ 16] [ 17]
Thalassa
Neptune IV (4)
40.750,075 0.311
1989 1989 Terrile (Voyager 2 )
23.32 Inner moon [ 16] [ 17]
Despina
Neptune V (5)
78± 4.752,526 0.335
1989 1989 Synnott (Voyager 2 )
22.0 Inner moon [ 16] [ 17]
Galatea
Neptune VI (6)
87.461,953 0.429
1989 1989 Synnott (Voyager 2 )
21.9 Inner moon [ 16] [ 17]
Larissa
Neptune VII (7)
97± 373,548 0.555
1981/1989 1981/1989 Reitsema , Hubbard , Lebofsky , Tholen (Voyager 2 )
21.5 Inner moon [ 16] [ 17]
Proteus
Neptune VIII (8)
210± 7117,647 1.122
1989 1989 Synnott (Voyager 2 )
19.7 Inner moon [ 16] [ 17]
Halimede
Neptune IX (9)
31 15,728,000 1,879.71 (r)
2002 2003 Holman , Kavelaars , Grav , Fraser , Milisavljevic
24.5 Retrograde irregular [ 16] [ 17]
Psamathe
Neptune X (10)
20 46,695,000 9,115.91 (r)
2003 2003 Jewitt , Kleyna , Sheppard , Holman , Kavelaars
25.5 Retrograde irregular (Neso) [ 16] [ 17]
Sao
Neptune XI (11)
22 22,422,000 2,914.07
2002 2003 Holman , Kavelaars , Grav , Fraser , Milisavljevic
25.5 Prograde irregular (Sao) [ 16] [ 17]
Laomedeia
Neptune XII (12)
21 23,571,000 3,167.85
2002 2003 Holman , Kavelaars , Grav , Fraser , Milisavljevic
25.5 Prograde irregular (Sao) [ 16] [ 17]
Neso
Neptune XIII (13)
30 48,387,000 9,740.73 (r)
2002 2003 Holman , Kavelaars , Grav , Fraser , Milisavljevic
25.6 Retrograde irregular (Neso) [ 16] [ 17]
Hippocamp
Neptune XIV (14)
17.4 105,283 0.9362
2004/2013 2013 Showalter et al.
26.5 Inner moon [ 159]
S/2002 N 5
Neptune —
19 23,365,200 3,141.26 2002 2024 Holman, Kavelaars, Grav, Fraser
25.9 Prograde irregular (Sao) [ 160]
S/2021 N 1
Neptune —
12.5 50,623,600 10,017.93 (r) 2021 2024 Sheppard, Tholen, Trujillo, Lykawka
27 Retrograde irregular (Neso) [ 161]
Vanth
Orcus I (1)
221± 5 9,000± 99.539
2005 2007 Brown & Suer
21.8 Synchronous rotation (Binary )[ 162]
Charon
Pluto I (1)
606± 0.519,591 6.387
1978 1978 Christy
16.8 Synchronous rotation (Binary )[ 16] [ 17]
Nix
Pluto II (2)
22.5 48,671 24.85
2005 2005 Weaver , Stern , Buie , et al.
23.37 to 23.7 Chaotic rotation [ 16] [ 17]
Hydra
Pluto III (3)
27.5 64,698 38.20
2005 2005 Weaver , Stern , Buie , et al.
22.9 to 23.3 Chaotic rotation [ 16] [ 17]
Kerberos
Pluto IV (4)
7 57,729 32.17
2011 2011 Showalter (Hubble )
26.1 Chaotic rotation [ 16] [ 17] [ 163] [ 164]
Styx
Pluto V (5)
5.5 42,393 20.16
2012 2012 Showalter (Hubble )
27 Chaotic rotation [ 16] [ 17] [ 165]
Hiʻ iaka
Haumea I (1)
≈160 49,880 49.12
2005 2005 Brown et al.
20.3 assuming a chaotic rotation [ 11] [ 166] [ 167]
Namaka
Haumea II (2)
≈85 25,657 18.2783
2005 2005 Brown et al.
21.9 assuming a chaotic rotation [ 11] [ 166] [ 167]
Weywot
Quaoar I (1)
40.5± 5.5[ 168] 14,500± 80012.438
2006 2007 Brown
24.7 Binary system [ 168] [ 169]
S/2015 (136472) 1
Makemake —
≈87.5 >21,000 >12.4
2015 2016 Parker et al.
25.0 [ 170] [ 171]
Xiangliu
Gonggong I (1)
< 100[ 172] 24,020± 200 25.221
2010 2016 Marton, Kiss & Müller
assuming a prograde orbit [ 172]
Dysnomia
Eris I (1)
350± 60[ 10] 37,273± 6415.786
2005 2005 Brown , Rabinowitz , Trujillo et al.
25.4 Synchronous rotation (Binary )[ 173]