List of Jupiter's moons

There are 97 known moons of Jupiter, as of 30 April 2025. Jupiter has the second largest number of moons of any planet in the Solar System.

The most massive of the moons are the four Galilean moons, which were independently discovered in 1610 by Galileo Galilei and Simon Marius. They were the first objects found to orbit a body that was neither Earth nor the Sun. The Galilean moons are by far the largest and most massive objects to orbit Jupiter. The other 93 known moons and the rings together make up just 0.003% of the total orbiting mass. The four are Io, Europa, Ganymede and Callisto. They are roughly the same size as Earth's moon, some are a bit bigger, some are smaller.

From the end of the 19th century, dozens of much smaller Jovian moons have been discovered. All these are less than  in diameter, with most barely exceeding . Their orbital shapes range from nearly perfectly circular to highly eccentric and inclined. Many revolve in the direction opposite to Jupiter's spin (retrograde motion). Orbital periods range from seven hours (taking less time than Jupiter does to spin around its axis), to some three thousand times more (almost three Earth years). 

 List of moons 
This list starts with those that go around Jupiter (orbit) the fastest.  That is, they have the shortest orbital period. Moons highlighted in purple are the "Galilean moons," moons highlighted in dark gray have a retrograde orbit, and moons with the regular white background have a prograde orbit, these describe the 95 moons.  

 LabelLabel refers to the Roman numeral attributed to each moon in order of their discovery. NamePronunciation(key)Image Diameter(km)Diameters with multiple entries such as "60×40×34" reflect that the body is not a perfect spheroid and that each of its dimensions have been measured well enough. Mass( kg) Semi-major axis(km) Orbital period(d)Periods with negative values are retrograde. Inclination(°) Eccentricity Discovery year Discoverer Group"?" refers to group assignments that are not considered sure yet.1  Metis    50px|center     128,000    0.060°   0.0002  1979  Synnott(Voyager 1)  Inner2 Adrastea    50px|center      129,000    0.030°  0.0015  1979  Jewitt(Voyager 2)Inner3 Amalthea   50px|center    208  181,400     0.374°  0.0032  1892  Barnard  Inner4 Thebe   50px|center      221,900    1.076°  0.0175  1979 Synnott(Voyager 1) Inner5 Io   50px|center   8,931,900  421,800    0.050°  0.0041  1610  Galilei  Galilean6 Europa  50px|center    4,799,800  671,100    0.470°  0.0090  1610 Galilei Galilean7 Ganymede   50px|center    14,819,000  1,070,400    0.200°  0.0013  1610 Galilei Galilean8 Callisto   50px|center    10,759,000  1,882,700   0.192°  0.0074  1610 Galilei Galilean9 Themisto        7,398,500    43.8°  0.340  1975/2000  Kowal & Roemer/Sheppard et al.  Themisto10 Leda    21.5    11,146,400    28.6°  0.162  1974  Kowal Himalia11 Ersa    3    11,401,000    29.1°  0.116  2018  Sheppard  Himalia12 S/2018 J 2  3   11,419,700    28.3°  0.152  2018  Sheppard Himalia13 Himalia   50px|center   420  11,440,600    28.1°  0.160  1904  Perrine  Himalia14 Pandia   3    11,481,000    29.0°  0.179  2017  Sheppard Himalia15 Lysithea     42.2    11,700,800    27.2°  0.117  1938  NicholsonHimalia16 Elara    79.9    11,712,300    27.9°  0.211  1905  Perrine Himalia17  S/2011 J 3       11,716,800    27.6°  0.192  2011  Sheppard  Himalia18 Dia        12,260,300    29.0°  0.232  2000  Sheppard et al. Himalia19  S/2018 J 4       16,328,500    50.2°  0.177  2018  Sheppard  Carpo20 Carpo         17,042,300    53.2°  0.416  2003  Sheppard  Carpo21 Valetudo          18,694,200    34.5°  0.217  2016  Sheppard  Valetudo22 Euporie         19,265,800    145.7°  0.148  2001  Sheppard et al.  Ananke23 S/2003 J 18       20,336,300    145.3°  0.090  2003  Gladman  Ananke24 Eupheme         20,768,600    148.0°  0.241  2003  Sheppard  Ananke25  S/2021 J 3        20,776,700    147.9°  0.239  2021  Sheppard  Ananke26  S/2010 J 2       20,793,000    148.1°  0.248  2010  Veillet  Ananke27  S/2016 J 1        20,802,600    144.7°  0.232  2016  Sheppard  Ananke28 Mneme         20,821,000    148.0°  0.247  2003  Sheppard & Gladman  Ananke29 Euanthe        20,827,000    148.0°  0.239  2001  Sheppard et al.  Ananke30  S/2003 J 16        20,882,600    148.0°  0.243  2003  Gladman  Ananke31 Harpalyke         20,892,100    147.7°  0.232  2000  Sheppard et al.  Ananke32 Orthosie        20,892,100    144.3°  0.299  2001  Sheppard et al.  Ananke33 Helike        20,915,700    154.4°  0.153  2003  Sheppard  Ananke34  S/2021 J 2       20,926,600    148.1°  0.242  2021  Sheppard  Ananke35 Praxidike     7    20,935,400    148.3°  0.246  2000  Sheppard et al.  Ananke36  S/2017 J 3       20,941,000    147.9°  0.231  2017  Sheppard  Ananke37  S/2021 J 1       20,954,700    150.5°  0.228  2021  Sheppard  Ananke38  S/2003 J 12       20,963,100    150.0°  0.235  2003  Sheppard  Ananke39  S/2017 J 7       20,964,800    147.3°  0.233  2017  Sheppard  Ananke40 Thelxinoe        20,976,000    150.6°  0.228  2003  Sheppard & Gladman et al.  Ananke41 Thyone        20,978,000    147.5°  0.233  2001  Sheppard et al.  Ananke42  S/2003 J 2        20,997,700    150.2°  0.225  2003  Sheppard  Ananke43 Ananke    29.1    21,034,500    147.6°  0.237  1951  Nicholson  Ananke44  S/2022 J 3        21,047,700    148.2°  0.249  2022  Sheppard  Ananke45 Iocaste         21,066,700    148.8°  0.227  2000  Sheppard et al.  Ananke46 Hermippe         21,108,500    150.2°  0.219  2001  Sheppard et al.  Ananke47  S/2017 J 9        21,768,700    155.5°  0.200  2017  Sheppard  Ananke48  Philophrosyne         22,604,600    146.3°  0.229  2003  Sheppard  Pasiphaë49  S/2016 J 3        22,719,300    164.6°  0.251  2016  Sheppard  Carme50  S/2022 J 1        22,725,200    164.5°  0.257  2022  Sheppard  Carme51 Pasithee         22,846,700    164.6°  0.270  2001  Sheppard et al.  Carme52  S/2017 J 8        22,849,500    164.8°  0.255  2017  Sheppard  Carme53  S/2021 J 6        22,870,300     164.9°  0.271  2021  Sheppard et al.  Carme54  S/2003 J 24         22,887,400    164.5°  0.259  2003  Sheppard et al.  Carme55 Eurydome        22,899,000    149.1°  0.294  2001  Sheppard et al.  Pasiphaë56 S/2011 J 2        22,909,200    151.9°  0.355  2011  Sheppard  Pasiphaë57  S/2003 J 4        22,926,500    148.2°  0.328  2003  Sheppard  Pasiphaë58 Chaldene        22,930,500    164.7°  0.265  2000  Sheppard et al.  Carme59 S/2017 J 2         22,953,200    164.5°  0.272  2017  Sheppard  Carme60 Isonoe         22,981,300    164.8°  0.249  2000  Sheppard et al.  Carme61  S/2022 J 2        23,013,800    164.7°  0.265  2022  Sheppard  Carme62  S/2021 J 4         23,019,700    164.6°  0.265  2021  Sheppard  Carme63 Kallichore         23,021,800    164.8°  0.252  2003  Sheppard  Carme64 Erinome        23,032,900    164.4°  0.276  2000  Sheppard et al.  Carme65 Kale         23,052,600    164.6°  0.262  2001  Sheppard et al.  Carme66 Eirene         23,055,800    164.6°  0.258  2003  Sheppard  Carme67 Aitne         23,064,400    164.6°  0.277  2001  Sheppard et al.  Carme68 Eukelade         23,067,400    164.6°  0.277  2003  Sheppard  Carme69 Arche         23,097,800    164.6°  0.261  2002  Sheppard  Carme70 Taygete         23,108,000    164.7°  0.253  2000  Sheppard et al.  Carme71  S/2016 J 4       23,113,800    147.1°  0.294  2016  Sheppard  Pasiphaë72  S/2011 J 1       23,124,500    164.6°  0.271  2011  Sheppard  Carme73 Carme     46.7    23,144,400    164.6°  0.256  1938  Nicholson  Carme74  Herse         23,150,500    164.4°  0.262  2003  Gladman et al.  Carme75  S/2003 J 19        23,156,400    164.7°  0.265  2003  Gladman  Carme76  S/2010 J 1        23,189,800    164.5°  0.252  2010  Jacobson et al.  Carme77  S/2003 J 9        23,199,400    164.8°  0.263  2003  Sheppard  Carme78  S/2017 J 5        23,206,200    164.8°  0.257  2017  Sheppard  Carme79  S/2017 J 6        23,245,300    149.7°  0.336  2017  Sheppard  Pasiphaë80 Kalyke     6.9    23,302,600    164.8°  0.260  2000  Sheppard et al.  Carme81 Hegemone         23,348,700    152.6°  0.358  2003  Sheppard  Pasiphaë82  S/2018 J 3        23,400,300    164.9°  0.268  2018  Sheppard  Carme83  S/2021 J 5        23,414,600    164.9°  0.272  2021  Sheppard et al.  Carme84 Pasiphaë     57.8    23,468,200    148.4°  0.412  1908  Melotte  Pasiphaë85 Sponde        23,543,300     149.3°  0.322  2001  Sheppard et al.  Pasiphaë86  S/2003 J 10       23,576,300    164.4°  0.264  2003  Sheppard  Carme87 Megaclite         23,644,600    149.8°  0.421  2000  Sheppard et al.  Pasiphaë88 Cyllene         23,654,700    146.8°  0.419  2003  Sheppard  Pasiphaë89 Sinope     35    23,683,900    157.3°  0.264  1914  Nicholson  Pasiphaë90  S/2017 J 1        23,744,800    145.8°  0.328  2017  Sheppard  Pasiphaë91 Aoede         23,744,800    155.7°  0.436  2003  Sheppard  Pasiphaë92Autonoe         23,792,500    150.8°  0.330  2001  Sheppard et al.  Pasiphaë93 Callirrhoe     9.6    23,795,500    145.1°  0.297  1999  Scotti et al.  Pasiphaë94  S/2003 J 23        23,829,300    144.7°  0.313  2003  Sheppard  Pasiphaë95   Kore         24,205,200    141.5°  0.328  2003  Sheppard  Pasiphaë

 Notes 

 References 


Category:Astronomy lists