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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]
Size of Jupiter compared to Earth and Earth's Moon. Jupiter is about ... in length by about 930 km (580 mi) per year. ... orbit of Jupiter as 11 years and 300 days.
Metis / ˈ m iː t ə s /, 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 .
Around Dec. 14, Jupiter will be visible in the night sky between the nearly full moon and a reddish-orange star called Aldebaran, which shines brightest in the Taurus constellation and can be seen ...
A Europan day is about 3.5 times as long as an Earth day. [61] Lineae ... than the neutral cloud surrounding Jupiter's inner moon Io. ... of 4.5 billion years, it ...
The Europa Clipper spacecraft lifted off at 12:06 p.m. ET, and will travel 1.8 billion miles over more than five years to reach Jupiter. For decades, an icy moon of Jupiter has been considered one ...
Callisto is expected to be captured into the resonance in about 1.5 billion years, completing the 1:2:4:8 chain. [45] Like most other regular planetary moons, Callisto's rotation is locked to be synchronous with its orbit. [4] The length of Callisto's day, simultaneously its orbital period, is about 16.7 Earth days.
Ganymede orbits Jupiter at a distance of 1,070,400 kilometres (665,100 mi), third among the Galilean satellites, [26] and completes a revolution every seven days and three hours (7.155 days [39]). Like most known moons, Ganymede is tidally locked , with one side always facing toward the planet, hence its day is also seven days and three hours ...