File:Io_highest_resolution_natural_color.png · Wikimedia Commons · See Wikimedia Commons

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Also known as Jupiter I, Io (moon)

innermost of the 4 Galilean moons of Jupiter

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Io is the innermost of Jupiter's four largest moons, discovered by Galileo in the early 1600s. It is scientifically significant because it is the most volcanically active body in our solar system, with hundreds of active volcanoes driven by intense internal heating.

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Wikidata facts

Instance of: regular moon
Part of: Galilean moons
Named after: Io
Area: 41910000
Parent body: Jupiter
Diameter: 3660
Radius: 1821.6
Mass: 89.296
Orbital period: 1.769137786
Image: Image of Io from Juno JunoCam from December 2023.png

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topic's main category: Category:Io (moon)
time of discovery or invention: 1610-01-08
Commons category: Io (moon)
discoverer or inventor: Galileo Galilei
Commons gallery: Io
periapsis: 420000
apoapsis: 423400
orbital eccentricity: 0.0041
volume as quantity: 2530000000
density: 3.528
albedo: 0.63
apparent magnitude: 5.02
semi-major axis of an orbit: 421800
temperature: 130
orbital inclination: 2.213
surface gravity: 1.796
named by: Simon Marius
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
topic has template: Template:GeoTemplate/io
provisional designation: Jupiter I

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