Moons of Jupiter
Jupiter has 94 known natural satellites.
Major Moons
The most significant natural satellites
Io
The most volcanically active body in the solar system and innermost Galilean moon.
3,643.2 km
Diameter
1.8 d
Orbit
1610
Discovered
Europa
Jupiter moon with a subsurface ocean considered a prime candidate for extraterrestrial life.
3,121.6 km
Diameter
3.6 d
Orbit
1610
Discovered
Ganymede
The largest moon in the solar system, bigger than Mercury, with its own magnetic field.
5,268.2 km
Diameter
7.2 d
Orbit
1610
Discovered
Callisto
Jupiter's second-largest moon with the most cratered surface in the solar system.
4,820.6 km
Diameter
16.7 d
Orbit
1610
Discovered
Other Moons
90 smaller natural satellites
Metis
Jupiter's innermost known moon, orbiting within the main ring.
43 km
Diameter
0.3 d
Orbit
1979
Discovered
Adrastea
One of Jupiter's smallest inner moons.
16.4 km
Diameter
0.3 d
Orbit
1979
Discovered
Amalthea
Jupiter's largest inner moon, reddish in color.
167 km
Diameter
0.5 d
Orbit
1892
Discovered
Thebe
Jupiter's outermost inner moon.
98.6 km
Diameter
0.7 d
Orbit
1979
Discovered
Himalia
Jupiter's largest irregular satellite.
170 km
Diameter
250.6 d
Orbit
1904
Discovered
Elara
A prograde irregular moon of Jupiter in the Himalia group.
86 km
Diameter
259.6 d
Orbit
1905
Discovered
Pasiphae
A retrograde irregular moon, namesake of its orbital group.
60 km
Diameter
743.6 d
Orbit
1908
Discovered
Sinope
A retrograde irregular moon of Jupiter.
38 km
Diameter
758.9 d
Orbit
1914
Discovered
Lysithea
A small prograde irregular moon of Jupiter.
36 km
Diameter
259.2 d
Orbit
1938
Discovered
Carme
A retrograde irregular moon, namesake of the Carme group.
46 km
Diameter
734.2 d
Orbit
1938
Discovered
Ananke
A retrograde irregular moon, namesake of the Ananke group.
28 km
Diameter
629.8 d
Orbit
1951
Discovered
Leda
A small prograde irregular moon of Jupiter.
20 km
Diameter
240.9 d
Orbit
1974
Discovered
Themisto
A small moon with a unique orbit.
8 km
Diameter
130.0 d
Orbit
1975
Discovered
Callirrhoe
A small retrograde irregular moon of Jupiter.
9 km
Diameter
758.8 d
Orbit
1999
Discovered
Praxidike
A retrograde irregular moon of Jupiter in the Ananke group.
7 km
Diameter
625.4 d
Orbit
2000
Discovered
Kalyke
A retrograde irregular moon of Jupiter in the Carme group.
5.2 km
Diameter
742.0 d
Orbit
2000
Discovered
Iocaste
A retrograde irregular moon of Jupiter in the Ananke group.
5.2 km
Diameter
631.6 d
Orbit
2000
Discovered
Erinome
A retrograde irregular moon of Jupiter in the Carme group.
3.2 km
Diameter
728.5 d
Orbit
2000
Discovered
Taygete
A retrograde irregular moon of Jupiter in the Carme group.
5 km
Diameter
732.4 d
Orbit
2000
Discovered
Chaldene
A retrograde irregular moon of Jupiter in the Carme group.
3.8 km
Diameter
723.7 d
Orbit
2000
Discovered
Isonoe
A retrograde irregular moon of Jupiter in the Carme group.
3.8 km
Diameter
725.5 d
Orbit
2000
Discovered
Harpalyke
A retrograde irregular moon of Jupiter in the Ananke group.
4.4 km
Diameter
623.3 d
Orbit
2000
Discovered
Hermippe
A retrograde irregular moon of Jupiter in the Ananke group.
4 km
Diameter
633.9 d
Orbit
2001
Discovered
Euanthe
A retrograde irregular moon of Jupiter in the Ananke group.
3 km
Diameter
620.5 d
Orbit
2001
Discovered
Euporie
A retrograde irregular moon of Jupiter in the Ananke group.
2 km
Diameter
550.7 d
Orbit
2001
Discovered
Orthosie
A retrograde irregular moon of Jupiter in the Ananke group.
2 km
Diameter
622.6 d
Orbit
2001
Discovered
Thyone
A retrograde irregular moon of Jupiter in the Ananke group.
4 km
Diameter
627.2 d
Orbit
2001
Discovered
Aitne
A retrograde irregular moon of Jupiter in the Carme group.
3 km
Diameter
730.2 d
Orbit
2001
Discovered
Kale
A retrograde irregular moon of Jupiter in the Carme group.
2 km
Diameter
729.5 d
Orbit
2001
Discovered
Pasithee
A retrograde irregular moon of Jupiter in the Carme group.
2 km
Diameter
719.4 d
Orbit
2001
Discovered
Megaclite
A retrograde irregular moon of Jupiter in the Pasiphae group.
5.4 km
Diameter
752.9 d
Orbit
2000
Discovered
Helike
A retrograde irregular moon of Jupiter in the Ananke group.
4 km
Diameter
634.8 d
Orbit
2003
Discovered
Aoede
A retrograde irregular moon of Jupiter in the Pasiphae group.
4 km
Diameter
761.5 d
Orbit
2003
Discovered
Kallichore
A retrograde irregular moon of Jupiter in the Carme group.
2 km
Diameter
764.7 d
Orbit
2003
Discovered
Cyllene
A retrograde irregular moon of Jupiter in the Pasiphae group.
2 km
Diameter
737.8 d
Orbit
2003
Discovered
Kore
A retrograde irregular moon of Jupiter in the Pasiphae group.
2 km
Diameter
779.2 d
Orbit
2003
Discovered
Herse
A retrograde irregular moon of Jupiter in the Carme group.
2 km
Diameter
714.5 d
Orbit
2003
Discovered
Mneme
A retrograde irregular moon of Jupiter in the Ananke group.
2 km
Diameter
620.0 d
Orbit
2003
Discovered
Thelxinoe
A retrograde irregular moon of Jupiter in the Ananke group.
2 km
Diameter
628.1 d
Orbit
2003
Discovered
Arche
A retrograde irregular moon of Jupiter in the Carme group.
3 km
Diameter
732.0 d
Orbit
2002
Discovered
Eukelade
A retrograde irregular moon of Jupiter in the Carme group.
4 km
Diameter
746.4 d
Orbit
2003
Discovered
Hegemone
A retrograde irregular moon of Jupiter in the Pasiphae group.
3 km
Diameter
739.6 d
Orbit
2003
Discovered
Autonoe
A retrograde irregular moon of Jupiter in the Pasiphae group.
4 km
Diameter
761.0 d
Orbit
2001
Discovered
Sponde
A retrograde irregular moon of Jupiter in the Pasiphae group.
2 km
Diameter
748.3 d
Orbit
2001
Discovered
Carpo
A retrograde irregular moon of Jupiter in the Carpo group.
3 km
Diameter
456.1 d
Orbit
2003
Discovered
Dia
A retrograde irregular moon of Jupiter in the Himalia group.
4 km
Diameter
287.9 d
Orbit
2000
Discovered
Eupheme
A retrograde irregular moon of Jupiter in the Ananke group.
2 km
Diameter
583.9 d
Orbit
2003
Discovered
Eirene
A retrograde irregular moon of Jupiter in the Carme group.
4 km
Diameter
739.3 d
Orbit
2003
Discovered
Philophrosyne
A retrograde irregular moon of Jupiter in the Pasiphae group.
2 km
Diameter
689.8 d
Orbit
2003
Discovered
Valetudo
A retrograde irregular moon of Jupiter in the Valetudo group.
1 km
Diameter
533.3 d
Orbit
2016
Discovered
Pandia
A retrograde irregular moon of Jupiter in the Himalia group.
3 km
Diameter
252.0 d
Orbit
2017
Discovered
Ersa
A retrograde irregular moon of Jupiter in the Himalia group.
3 km
Diameter
249.2 d
Orbit
2018
Discovered
S/2003 J 2
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
981.5 d
Orbit
2003
Discovered
S/2003 J 4
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
755.2 d
Orbit
2003
Discovered
S/2003 J 9
A small irregular moon of Jupiter discovered in 2003.
1 km
Diameter
733.3 d
Orbit
2003
Discovered
S/2003 J 10
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
716.3 d
Orbit
2003
Discovered
S/2003 J 12
A small irregular moon of Jupiter discovered in 2003.
1 km
Diameter
489.7 d
Orbit
2003
Discovered
S/2003 J 16
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
616.4 d
Orbit
2003
Discovered
S/2003 J 18
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
596.6 d
Orbit
2003
Discovered
S/2003 J 19
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
740.4 d
Orbit
2003
Discovered
S/2003 J 23
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
732.4 d
Orbit
2003
Discovered
S/2003 J 24
A small irregular moon of Jupiter discovered in 2003.
2 km
Diameter
715.4 d
Orbit
2003
Discovered
S/2010 J 1
A small irregular moon of Jupiter discovered in 2010.
2 km
Diameter
724.3 d
Orbit
2010
Discovered
S/2010 J 2
A small irregular moon of Jupiter discovered in 2010.
1 km
Diameter
588.8 d
Orbit
2010
Discovered
S/2011 J 1
A small irregular moon of Jupiter discovered in 2011.
1 km
Diameter
580.7 d
Orbit
2011
Discovered
S/2011 J 2
A small irregular moon of Jupiter discovered in 2011.
1 km
Diameter
726.8 d
Orbit
2011
Discovered
S/2011 J 3
A small irregular moon of Jupiter discovered in 2011.
1 km
Diameter
601.4 d
Orbit
2011
Discovered
S/2016 J 1
A small irregular moon of Jupiter discovered in 2016.
1 km
Diameter
602.7 d
Orbit
2016
Discovered
S/2016 J 3
A small irregular moon of Jupiter discovered in 2016.
1 km
Diameter
616.4 d
Orbit
2016
Discovered
S/2016 J 4
A small irregular moon of Jupiter discovered in 2016.
1 km
Diameter
718.3 d
Orbit
2016
Discovered
S/2017 J 1
A small irregular moon of Jupiter discovered in 2017.
2 km
Diameter
734.2 d
Orbit
2017
Discovered
S/2017 J 2
A small irregular moon of Jupiter discovered in 2017.
2 km
Diameter
723.8 d
Orbit
2017
Discovered
S/2017 J 3
A small irregular moon of Jupiter discovered in 2017.
2 km
Diameter
606.3 d
Orbit
2017
Discovered
S/2017 J 5
A small irregular moon of Jupiter discovered in 2017.
2 km
Diameter
719.5 d
Orbit
2017
Discovered
S/2017 J 6
A small irregular moon of Jupiter discovered in 2017.
2 km
Diameter
714.6 d
Orbit
2017
Discovered
S/2017 J 7
A small irregular moon of Jupiter discovered in 2017.
2 km
Diameter
602.8 d
Orbit
2017
Discovered
S/2017 J 8
A small irregular moon of Jupiter discovered in 2017.
1 km
Diameter
720.7 d
Orbit
2017
Discovered
S/2017 J 9
A small irregular moon of Jupiter discovered in 2017.
3 km
Diameter
639.2 d
Orbit
2017
Discovered
S/2018 J 2
A small irregular moon of Jupiter discovered in 2018.
1 km
Diameter
588.4 d
Orbit
2018
Discovered
S/2018 J 3
A small irregular moon of Jupiter discovered in 2018.
1 km
Diameter
597.3 d
Orbit
2018
Discovered
S/2018 J 4
A small irregular moon of Jupiter discovered in 2018.
2 km
Diameter
710.5 d
Orbit
2018
Discovered
S/2021 J 1
A small irregular moon of Jupiter discovered in 2021.
2 km
Diameter
606.3 d
Orbit
2021
Discovered
S/2021 J 2
A small irregular moon of Jupiter discovered in 2021.
1 km
Diameter
716.6 d
Orbit
2021
Discovered
S/2021 J 3
A small irregular moon of Jupiter discovered in 2021.
1 km
Diameter
605.4 d
Orbit
2021
Discovered
S/2021 J 4
A small irregular moon of Jupiter discovered in 2021.
2 km
Diameter
719.8 d
Orbit
2021
Discovered
S/2021 J 5
A small irregular moon of Jupiter discovered in 2021.
1 km
Diameter
722.8 d
Orbit
2021
Discovered
S/2021 J 6
A small irregular moon of Jupiter discovered in 2021.
1 km
Diameter
734.6 d
Orbit
2021
Discovered
S/2022 J 1
A small irregular moon of Jupiter discovered in 2022.
1 km
Diameter
736.2 d
Orbit
2022
Discovered
S/2022 J 2
A small irregular moon of Jupiter discovered in 2022.
1 km
Diameter
723.7 d
Orbit
2022
Discovered
S/2022 J 3
A small irregular moon of Jupiter discovered in 2022.
1 km
Diameter
596.1 d
Orbit
2022
Discovered