Jupiter Moons (79)


Jupiter has currently 79 moons. 58 moons are confirmed and named and further 21 are waiting for their official designation and confirmation.

1. Io 2. Europa 3. Ganymede 4. Callisto 5. Amalthea 6. Himalia
7. Elara 8. Pasiphae 9. Sinope 10. Lysithea 11. Carme 12. Ananke
13. Leda 14. Thebe 15. Adrastea 16. Metis 17. Callirrhoe 18. Themisto
19. Megaclite 20. Taygete 21. Chaldene 22. Harpalyke 23. Kalyke 24. Iocaste
25. Erinome 26. Isonoe 27. Praxidike 28. Autonoe 29. Thyone 30. Hermippe
31. Aitne 32. Eurydome 33. Euanthe 34. Euporie 35. Orthosie 36. Sponde
37. Kale 38. Pasithee 39. Hegemone 40. Mneme 41. Aoede 42. Thelxinoe
43. Arche 44. Kallichore 45. Helike 46. Carpo 47. Eukelade 48. Cyllene
49. Kore 50. Herse 51. S/2010 J1 52. S/2010 J2 53. Dia 54. S/2016 J1
55. S/2003 J18 56. S/2011 J2 57. Eirene 58. Philophrosyne 59. S/2017 J1 60. Eupheme
61. S/2003 J19 62. Valetudo 63. S/2017 J2 64. S/2017 J3 65. Pandia 66. S/2017 J5
67. S/2017 J6 68. S/2017 J7 69. S/2017 J8 70. S/2017 J9 71. Ersa 72. S/2011 J1
73. S/2003 J2 74. S/2003 J4 75. S/2003 J9 76. S/2003 J10 77. S/2003 J12 78. S/2003 J16
79. S/2003 J23

Name Io
Discovery date 1610 (Galileo Galilei)
Semi-major axis 421 800 km
Diameter 3643 km
Orbital period
(Length of a year)
1.769 Earth days
Io taken by the Galileo spacecraft on July 3, 1999. Photo: NASA/JPL/University of Arizona

Name Europa
Discovery date 1610 (Galileo Galilei)
Semi-major axis 671 100 km
Diameter 3122 km
Orbital period
(Length of a year)
3.551 Earth days
Europa taken by the Galileo spacecraft on September 7, 1996. Photo: NASA/JPL/DLR

Name Ganymede
Discovery date 1610 (Galileo Galilei)
Semi-major axis 1 070 400 km
Diameter 5262 km
Orbital period
(Length of a year)
7.155 Earth days
Ganymede taken by the Juno spacecraft on June 7, 2021. Photo: NASA/JPL-Caltech/SwRI

Name Callisto
Discovery date 1610 (Galileo Galilei)
Semi-major axis 1 882 700 km
Diameter 4821 km
Orbital period
(Length of a year)
16.59 Earth days
Callisto taken by the Galileo spacecraft in Mai 2001, Photo: NASA/JPL/DLR

Name Amalthea
Discovery date 1892 (Edward E. Barnard)
Semi-major axis 181 400 km
Diameter 167 km
Orbital period
(Length of a year)
0.498 Earth days

Name Himalia
Discovery date 1904 (Charles D. Perrine)
Semi-major axis 11 461 000 km
Diameter 170 km
Orbital period
(Length of a year)
250.56 Earth days
Himalia taken by the Cassini-Huygens spacecraft on December 19, 2001. Photo: NASA/JPL/University of Arizona

Name Elara
Discovery date 1905 (Charles D. Perrine)
Semi-major axis 11 741 000 km
Diameter 86 km
Orbital period
(Length of a year)
259.64 Earth days

Name Pasiphae
Discovery date 1908 (Philibert J. Melotte)
Semi-major axis 23 624 000 km
Diameter 60 km
Orbital period
(Length of a year)
744 Earth days

Name Sinope
Discovery date 1914 (Seth B. Nicholson)
Semi-major axis 23 993 000 km
Diameter 38 km
Orbital period
(Length of a year)
758.9 Earth days

Name Lysithea
Discovery date 1938 (Seth B. Nicholson)
Semi-major axis 11 717 000 km
Diameter 36 km
Orbital period
(Length of a year)
259.2 Earth days

Name Carme
Discovery date 1938 (Seth B. Nicholson)
Semi-major axis 23 404 000 km
Diameter 46 km
Orbital period
(Length of a year)
734.2 Earth days

Name Ananke
Discovery date 1951 (Seth B. Nicholson)
Semi-major axis 21 276 000 km
Diameter 28 km
Orbital period
(Length of a year)
629.77 Earth days

Name Leda
Discovery date 1974 (Charles T. Kowal)
Semi-major axis 11 165 000 km
Diameter 20 km
Orbital period
(Length of a year)
240.92 Earth days

Name Thebe
Discovery date 1980 (Stephen Synnott, Voyager 1)
Semi-major axis 221 900 km
Diameter 98 km
Orbital period
(Length of a year)
0.675 Earth days

Name Adrastea
Discovery date 1979 (David C. Jewitt, G. Edward Danielson, Voyager 2)
Semi-major axis 129 000 km
Diameter 16 km
Orbital period
(Length of a year)
0.298 Earth days

Name Metis
Discovery date 1980 (Stephen Synnott, Voyager 2)
Semi-major axis 128 000 km
Diameter 43 km
Orbital period
(Length of a year)
0.295 Earth days

Name Callirrhoe
Discovery date 1999 (Jim V. Scotti, Timothy B. Spahr, Robert S. McMillan, Jeffrey A. Larsen,
Joe Montani, Arianna E. Gleason, Tom Gehreis)
Semi-major axis 24 102 000 km
Diameter 7 km
Orbital period
(Length of a year)
758.8 Earth days

Name Themisto
Discovery date 1975 (Charles Kowal, Elizabeth Roemer)
Semi-major axis 7 284 000 km
Diameter 8 km
Orbital period
(Length of a year)
130.02 Earth days

Name Megaclite
Discovery date 2002 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 23 806 000 km
Diameter 5 km
Orbital period
(Length of a year)
752.8 Earth days

Name Taygete
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 23 360 000 km
Diameter 5 km
Orbital period
(Length of a year)
732.2 Earth days

Name Chaldene
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 23 179 000 km
Diameter 3.8 km
Orbital period
(Length of a year)
723.8 Earth days

Name Harpalyke
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 21 105 000 km
Diameter 4.4 km
Orbital period
(Length of a year)
623.3 Earth days

Name Kalyke
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 23 580 000 km
Diameter 5 km
Orbital period
(Length of a year)
743 Earth days

Name Iocaste
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 21 269 000 km
Diameter 5 km
Orbital period
(Length of a year)
631.5 Earth days

Name Erinome
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 23 279 000 km
Diameter 3.2 km
Orbital period
(Length of a year)
728.3 Earth days

Name Isonoe
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 23 217 000 km
Diameter 4 km
Orbital period
(Length of a year)
726 Earth days

Name Praxidike
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga Fernandez,
Eugene A. Magnier)
Semi-major axis 21 147 000 km
Diameter 7 km
Orbital period
(Length of a year)
625 Earth days

Name Autonoe
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, J. Kleyna)
Semi-major axis 24 000 000 km
Diameter 4 km
Orbital period
(Length of a year)
761 Earth days

Name Thyone
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 21 200 000 km
Diameter 4 km
Orbital period
(Length of a year)
627,3 Earth days

Name Hermippe
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 21 131 000 km
Diameter 4 km
Orbital period
(Length of a year)
633.9 Earth days

Name Aitne
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 23 229 000 km
Diameter 3 km
Orbital period
(Length of a year)
730.2 Earth days

Name Eurydome
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 22 865 000 km
Diameter 3 km
Orbital period
(Length of a year)
717.3 Earth days

Name Euanthe
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 20 799 000 km
Diameter 3 km
Orbital period
(Length of a year)
620.6 Earth days

Name Euporie
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 19 304 000 km
Diameter 2 km
Orbital period
(Length of a year)
550.74 Earth days

Name Orthosie
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 20 720 000 km
Diameter 2 km
Orbital period
(Length of a year)
622.56 Earth days

Name Sponde
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 23 487 000 km
Diameter 2 km
Orbital period
(Length of a year)
748.34 Earth days

Name Kale
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 23 217 000 km
Diameter 2 km
Orbital period
(Length of a year)
729.47 Earth days

Name Pasithee
Discovery date 2001 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna)
Semi-major axis 23 096 000 km
Diameter 2 km
Orbital period
(Length of a year)
719.44 Earth days

Name Hegemone
Discovery date 2003 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna,
Yanga Fernandez, Henry H. Hsieh)
Semi-major axis 23 947 000 km
Diameter 3 km
Orbital period
(Length of a year)
739.6 Earth days

Name Mneme
Discovery date 2003 (Scott S. Sheppard, Brett J. Gladman)
Semi-major axis 21 069 000 km
Diameter 2 km
Orbital period
(Length of a year)
620 Earth days

Name Aoede
Discovery date 2003 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna,
Yanga Fernandez, Henry H. Hsieh)
Semi-major axis 23 980 000 km
Diameter 4 km
Orbital period
(Length of a year)
761.5 Earth days

Name Thelxinoe
Discovery date 2003 (Scott S. Sheppard, Brett J. Gladman)
Semi-major axis 21 162 000 km
Diameter 2 km
Orbital period
(Length of a year)
628.09 Earth days

Name Arche
Discovery date 2002 (Scott S. Sheppard)
Semi-major axis 22 931 000 km
Diameter 3 km
Orbital period
(Length of a year)
723.9 Earth days

Name Kallichore
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 24 043 000 km
Diameter 2 km
Orbital period
(Length of a year)
764.7 Earth days

Name Helike
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 21 263 000 km
Diameter 4 km
Orbital period
(Length of a year)
634.8 Earth days

Name Carpo
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 16 989 000 km
Diameter 3 km
Orbital period
(Length of a year)
456.3 Earth days

Name Eukelade
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 23 661 000 km
Diameter 4 km
Orbital period
(Length of a year)
746.4 Earth days

Name Cyllene
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 24 349 000 km
Diameter 2 km
Orbital period
(Length of a year)
737.8 Earth days

Name Kore
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 24 543 000 km
Diameter 2 km
Orbital period
(Length of a year)
779.2 Earth days

Name Herse
Discovery date 2003 (Brett J. Gladman, John J. Kavelaars, Jean-Marc Petit, Lynne Allen)
Semi-major axis 22 983 000 km
Diameter 2 km
Orbital period
(Length of a year)
714.51 Earth days

Name S/2010 J1
Discovery date 2010 (Robert A. Jacobson, Marina Brozovic, Brett J. Gladman,
M. Alexandersen)
Semi-major axis 23 200 000 km
Diameter 2 km
Orbital period
(Length of a year)
722.8 Earth days

Name S/2010 J2
Discovery date 2010 (Christian Veillet)
Semi-major axis 20 240 000 km
Diameter 1 km
Orbital period
(Length of a year)
590 Earth days

Name Dia
Discovery date 2000 (Scott S. Sheppard, David C. Jewitt, Yanga R. Fernandez,
Eugene A. Magnier)
Semi-major axis 12 174 000 km
Diameter 4 km
Orbital period
(Length of a year)
274.40 Earth days

Name S/2016 J1
Discovery date 2016 (Scott S. Sheppard)
Semi-major axis 20 595 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
604 Earth days

Name S/2003 J18
Discovery date 2003 (Brett J. Gladman)
Semi-major axis 20 514 000 km
Diameter 2 km
Orbital period
(Length of a year)
596.58 Earth days

Name S/2011 J2
Discovery date 2011 (Scott S. Sheppard)
Semi-major axis 23 270 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
725.1 Earth days

Name Eirene
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 23 668 000 km
Diameter ~ 4 km
Orbital period
(Length of a year)
743.88 Earth days

Name Philophrosyne
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 22 630 000 km
Diameter ~ 2 km
Orbital period
(Length of a year)
689.8 Earth days

Name S/2017 J1
Discovery date 2017 (Scott S. Sheppard, David J. Tholen, Chad Trujillo)
Semi-major axis 23 484 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
735.2 Earth days

Name Eupheme
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 20 224 000 km
Diameter ~ 2 km
Orbital period
(Length of a year)
583.9 Earth days

Name S/2003 J19
Discovery date 2003 (Brett J. Gladman)
Semi-major axis 23 535 000 km
Diameter ~ 2 km
Orbital period
(Length of a year)
740.43 Earth days

Name Valetudo
Discovery date 2003 (Scott S. Sheppard, Chad Trujillo)
Semi-major axis 24 000 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
523 Earth days

Name S/2017 J2
Discovery date 2017 (Scott S. Sheppard, David J. Tholen, Chad Trujillo)
Semi-major axis 23 300 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
735 Earth days

Name S/2017 J3
Discovery date 2017 (Scott S. Sheppard, David J. Tholen, Chad Trujillo)
Semi-major axis 20 700 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
606 Earth days

Name Pandia
Discovery date 2017 (Scott S. Sheppard, David J. Tholen, Chad Trujillo)
Semi-major axis 11 500 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
252 Earth days

Name S/2017 J5
Discovery date 2017 (Scott S. Sheppard)
Semi-major axis 23 200 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
720 Earth days

Name S/2017 J6
Discovery date 2017 (Scott S. Sheppard)
Semi-major axis 22 500 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
683 Earth days

Name S/2017 J7
Discovery date 2017 (Scott S. Sheppard)
Semi-major axis 20 600 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
603 Earth days

Name S/2017 J8
Discovery date 2017 (Scott S. Sheppard)
Semi-major axis 23 200 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
720 Earth days

Name S/2017 J9
Discovery date 2017 (Scott S. Sheppard)
Semi-major axis 21 500 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
639 Earth days

Name Ersa
Discovery date 2017 (Scott S. Sheppard)
Semi-major axis 11 500 000 km
Diameter ~ 3 km
Orbital period
(Length of a year)
252 Earth days

Name S/2011 J1
Discovery date 2011 (Scott S. Sheppard)
Semi-major axis 20 100 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
582 Earth days

Name S/2003 J2
Discovery date 2003 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna,
Yanga R. Fernandez, Henry H. Hsieh)
Semi-major axis 28 570 410 km
Diameter ~ 2 km
Orbital period
(Length of a year)
982.5 Earth days

Name S/2003 J4
Discovery date 2003 (Scott S. Sheppard, David C. Jewitt, Jan T. Kleyna,
Yanga R. Fernandez, Henry H. Hsieh)
Semi-major axis 23 257 920 km
Diameter ~ 2 km
Orbital period
(Length of a year)
755.24 Earth days

Name S/2003 J9
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 22 441 680 km
Diameter ~ 1 km
Orbital period
(Length of a year)
683 Earth days

Name S/2003 J10
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 23 041 000 km
Diameter
Orbital period
(Length of a year)
716 Earth days

Name S/2003 J12
Discovery date 2003 (Scott S. Sheppard, David C. Jewitt, Yanga R. Fernández,
Eugene A. Magnier)
Semi-major axis 17 833 000 km
Diameter ~ 1 km
Orbital period
(Length of a year)
489.7 Earth days

Name S/2003 J16
Discovery date 2003 (Brett J. Gladman)
Semi-major axis 20 956 000 km
Diameter ~ 2 km
Orbital period
(Length of a year)
616.33 Earth days

Name S/2003 J23
Discovery date 2003 (Scott S. Sheppard)
Semi-major axis 23 566 000 km
Diameter ~ 2 km
Orbital period
(Length of a year)
732.45 Earth days