All Moons of Jupiter
Most of Jupiter’s swarms of smaller moons orbit much farther out than the Galilean satellites. Of these distant moons, the larger ones may be captured asteroids. The smaller ones are likely fragments from massive collisions.
Quick Facts
Galileo Galilei spotted the first Jupiter moons in 1610 with a new invention called a telescope.
German astronomer Simon Marius found Jupiter’s moons about the same time as Galileo, but Galileo was first to report the moons and is credited with their discovery.
Modern astronomer Scott S. Sheppard has discovered the most moons of Jupiter, including nine in 2017 alone.
| IAU number | IAU name | Provisional designation | Year discovered | Discoverer(s)/spacecraft mission | References |
|---|---|---|---|---|---|
| I | Io | 1610 | Galileo | IAU WGPSN | |
| II | Europa | 1610 | Galileo | IAU WGPSN | |
| III | Ganymede | 1610 | Galileo | IAU WGPSN | |
| IV | Callisto | 1610 | Galileo | IAU WGPSN | |
| V | Amalthea | 1892 | E.E. Barnard | IAU WGPSN | |
| VI | Himalia | 1904 | C.D. Perrine | IAU WGPSN | |
| VII | Elara | 1905 | C.D. Perrine | IAU WGPSN | |
| VIII | Pasiphae | 1908 | P.J. Melotte | IAU WGPSN | |
| IX | Sinope | 1914 | S.B. Nicholson | IAU WGPSN | |
| X | Lysithea | 1938 | S.B. Nicholson | IAU WGPSN | |
| XI | Carme | 1938 | S.B. Nicholson | IAU WGPSN | |
| XII | Ananke | 1951 | S.B. Nicholson | IAU WGPSN | |
| XIII | Leda | 1974 | C.T. Kowal | IAU WGPSN | |
| XIV | Thebe | S/1979 J2 | 1979 | Voyager Science Team | IAU WGPSN |
| XV | Adrastea | S/1979 J1 | 1979 | Voyager Science Team | IAU WGPSN |
| XVI | Metis | S/1979 J3 | 1979 | Voyager Science Team | IAU WGPSN |
| XVII | Callirrhoe | S/1999 J1 | 1999 | J.V. Scotti, T.B. Spahr, R.S. McMillan, J.A. Larsen, J. Montani, A.E. Gleason, T. Gehrels | IAUC 7460 |
| XVIII | Themisto | S/1975 J1 = S/2000 J1 | 1975, 2000 | C.T. Kowal, E. Roemer (1975), S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier (2000) | IAUC 7525 |
| XIX | Megaclite | S/2000 J8 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XX | Taygete | S/2000 J9 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXI | Chaldene | S/2000 J10 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXII | Harpalyke | S/2000 J5 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXIII | Kalyke | S/2000 J2 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXIV | Iocaste | S/2000 J3 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXV | Erinome | S/2000 J4 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXVI | Isonoe | S/2000 J6 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXVII | Praxidike | S/2000 J7 | 2000 | S.S. Sheppard, D.C. Jewitt, Y.R. Fernandez, G. Magnier | IAUC 7555 |
| XXVIII | Autonoe | S/2001 J1 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXIX | Thyone | S/2001 J2 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXX | Hermippe | S/2001 J3 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXI | Aitne | S/2001 J11 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXII | Eurydome | S/2001 J4 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXIII | Euanthe | S/2001 J7 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXIV | Euporie | S/2001 J10 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXV | Orthosie | S/2001 J9 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXVI | Sponde | S/2001 J5 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXVII | Kale | S/2001 J8 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXVIII | Pasithee | S/2001 J6 | 2001 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | MPEC 2002-J54 |
| XXXIX | Hegemone | S/2003 J8 | 2003 | S.S. Sheppard | IAUC 8088 |
| XL | Mneme | S/2003 J21 | 2003 | B. Gladman, L. Allen | IAUC 8138 |
| XLI | Aoede | S/2003 J7 | 2003 | S.S. Sheppard | IAUC 8087 |
| XLII | Thelxinoe | S/2003 J22 | 2003 | S.S. Sheppard | IAUC 8276 |
| XLIII | Arche | S/2002 J1 | 2002 | S.S. Sheppard | IAUC 8035 |
| XLIV | Kallichore | S/2003 J11 | 2003 | S.S. Sheppard | IAUC 8089 |
| XLV | Helike | S/2003 J6 | 2003 | S.S. Sheppard | IAUC 8087 |
| XLVI | Carpo | S/2003 J20 | 2003 | S.S. Sheppard | IAUC 8125 |
| XLVII | Eukelade | S/2003 J1 | 2003 | S.S. Sheppard | IAUC 8087 |
| XLVIII | Cyllene | S/2003 J13 | 2003 | S.S. Sheppard | IAUC 8116 |
| XLIX | Kore | S/2003 J14 | 2003 | S.S. Sheppard, D.C. Jewitt, J. Kleyna | IAUC 8116 |
| L | Herse | S/2003 J17 | 2003 | B. Gladman, J. Kavelaars, J.-M. Petit, and L. Allen | IAUC 8116 |
| LI | S/2010 J1 | 2010 | R. Jacobson, M. Brozovic, B. Gladman, M. Alexandersen | IAUC 9222 | |
| LII | S/2010 J2 | 2010 | C. Veillet | IAUC 9222 | |
| LIII | Dia | S/2000 J11 | 2000 | S.S. Sheppard, D.C. Jewitt, Y. Fernandez, G. Magnier | IAUC 7555 |
| LIV | S/2016 J1 | 2016 | S.S. Sheppard | MPEC 2017-L08 | |
| LV | S/2003 J18 | 2003 | B. Gladman | IAUC 8116 | |
| LVI | S/2011 J2 | 2011 | S.S. Sheppard | CBET 3002/IAUC 9252 | |
| LVII | Eirene | S/2003 J5 | 2003 | S.S. Sheppard, D.C. Jewitt, and J. Kleyna | IAUC 8087 |
| LVIII | Philophrosyne | S/2003 J15 | 2003 | S.S. Sheppard, D.C. Jewitt, and J. Kleyna | IAUC 8116 |
| LIX | S/2017 J1 | 2017 | S.S. Sheppard | MPEC 2017-L47 | |
| LX | Eupheme | S/2003 J3 | 2003 | S.S. Sheppard, D.C. Jewitt, and J. Kleyna | IAUC 8087 |
| LXI | S/2003 J19 | 2003 | B. Gladman | IAUC 8125 | |
| LXII | Valetudo | S/2016 J2 | 2016 | S.S. Sheppard | MPEC 2018-O09 |
| LXIII | S/2017 J2 | 2017 | S.S. Sheppard | MPEC 2018-O10 | |
| LXIV | S/2017 J3 | 2017 | S.S. Sheppard | MPEC 2018-O11 | |
| LXV | Pandia | S/2017 J4 | 2017 | S.S. Sheppard | MPEC 2018-O12 |
| LXVI | S/2017 J5 | 2017 | S.S. Sheppard | MPEC 2018-O13 | |
| LXVII | S/2017 J6 | 2017 | S.S. Sheppard | MPEC 2018-O14 | |
| LXVIII | S/2017 J7 | 2017 | S.S. Sheppard | MPEC 2018-O15 | |
| LXIX | S/2017 J8 | 2017 | S.S. Sheppard | MPEC 2018-O16 | |
| LXX | S/2017 J9 | 2017 | S.S. Sheppard | MPEC 2018-O17 | |
| LXXI | Ersa | S/2018 J1 | 2018 | S.S. Sheppard | MPEC 2018-O18 |
| LXXII | S/2011 J1 | 2011 | S.S. Sheppard | CBET 3002/IAUC 9252 | |
| S/2003 J2 | 2003 | S.S. Sheppard | IAUC 8087 | ||
| S/2003 J4 | 2003 | S.S. Sheppard | IAUC 8087 | ||
| S/2003 J9 | 2003 | S.S. Sheppard | IAUC 8089 | ||
| S/2003 J10 | 2003 | S.S. Sheppard | IAUC 8089 | ||
| S/2003 J12 | 2003 | S.S. Sheppard | IAUC 8089 | ||
| S/2003 J16 | 2003 | B. Gladman | IAUC 8116 | ||
| S/2003 J23 | 2003 | S.S. Sheppard | IAUC 8281 | ||
| S/2003 J24 | 2003 | S.S. Sheppard, D.C. Jewitt, J. Kleyna, B.J. Gladman, C. Veillet | MPEC 2021-V333 | ||
| S/2011 J3 | 2011 | S.S. Sheppard | MPEC 2022-Y69 | ||
| S/2016 J3 | 2016 | S.S. Sheppard | MPEC 2023-A13 | ||
| S/2016 J4 | 2016 | S.S. Sheppard | MPEC 2023-B96 | ||
| S/2018 J2 | 2018 | S.S. Sheppard | MPEC 2022-Y68 | ||
| S/2018 J3 | 2018 | S.S. Sheppard | MPEC 2023-B38 | ||
| S/2018 J4 | 2018 | S.S. Sheppard | MPEC 2023-B51 | ||
| S/2021 J1 | 2021 | S.S. Sheppard | MPEC 2023-A14 | ||
| S/2021 J2 | 2021 | S.S. Sheppard | MPEC 2023-B37 | ||
| S/2021 J3 | 2021 | S.S. Sheppard | MPEC 2023-B39 | ||
| S/2021 J4 | 2021 | S.S. Sheppard | MPEC 2023-B40 | ||
| S/2021 J5 | 2021 | S.S. Sheppard, D.J. Tholen, C. Trujillo | MPEC 2023-B41 | ||
| S/2021 J6 | 2021 | S.S. Sheppard, D.J. Tholen, C. Trujillo | MPEC 2023-B50 | ||
| S/2022 J1 | 2022 | S.S. Sheppard | MPEC 2023-D44 | ||
| S/2022 J2 | 2022 | S.S. Sheppard | MPEC 2023-D45 | ||
| S/2022 J3 | 2022 | S.S. Sheppard | MPEC 2023-D46 |