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A montage of Jupiter and its four largest moons (distance and sizes not to scale) There are 95 moons of Jupiter with confirmed orbits as of 5 February 2024. [1] [note 1] This number does not include a number of meter-sized moonlets thought to be shed from the inner moons, nor hundreds of possible kilometer-sized outer irregular moons that were only briefly captured by telescopes. [4]
From top to bottom: Io, Europa, Ganymede, Callisto. The Galilean moons (/ ˌɡælɪˈleɪ.ən /), [1] or Galilean satellites, are the four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto. They are the most readily visible Solar System objects after Saturn, the dimmest of the classical planets; though their closeness to bright ...
Its diameter is eleven times that of Earth, and a tenth that of the Sun. Jupiter orbits the Sun at a distance of 5.20 AU (778.5 Gm), with an orbital period of 11.86 years. It is the third brightest natural object in the Earth's night sky, after the Moon and Venus, and has been observed since prehistoric times.
NASA releases stunning new photos of Jupiter. Marking the latest foray into space exploration, NASA is preparing to launch its first mission to explore Jupiter's moon, Europa, to determine if it ...
Thebe (moon) Image of Thebe taken by the Galileo spacecraft on 4 January 2000. The large crater near the center is Zethus. Thebe / ˈθiːbiː /, also known as Jupiter XIV, is the fourth of Jupiter's moons by distance from the planet. It was discovered by Stephen P. Synnott in images from the Voyager 1 space probe taken on March 5, 1979, while ...
Solar eclipses on Jupiter. A picture of Jupiter and its moon Io taken by the Hubble Space Telescope. The black spot is Io's shadow. Jupiter and the Great Red Spot (visible on the lower right), with Ganymede (immediately on the upper right) casting its shadow on Jupiter. The other moons are Europa (further right), Io (first on left), and ...
Metis / ˈmiːtəs /, also known as Jupiter XVI, is the innermost known moon of Jupiter. It was discovered in 1979 in images taken by Voyager 1, and was named in 1983 after the Titaness Metis, the first wife of Zeus and the mother of Athena. Additional observations made between early 1996 and September 2003 by the Galileo spacecraft allowed its ...
3 km. Apparent magnitude. 22.8. Arche / ˈɑːrkiː /, also known as Jupiter XLIII, is a moon of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard on 31 October 2002, and received the temporary designation S/2002 J 1. [2][3] Arche is about 3 kilometres in diameter, and orbits Jupiter at ...