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Loading contentCallisto is the outermost of the four Galilean moons of Jupiter and is heavily cratered.
moon:callistoDataset membership
Open data
In the graph export: graph.json · graph.jsonld
Planned API: GET /api/v0/entities/moon:callisto
Scientific entity. See the evidence framework and authority dashboard.
How Callisto connects across Asteria Star — scientific, cultural, and astrological links are kept separate.
Galileo Galilei was an Italian astronomer and physicist who pioneered telescopic astronomy, discovering the four largest moons of Jupiter.
In January 1610 Galileo saw four points of light beside Jupiter that changed position night after night — moons orbiting another world.
A giant multi-ring impact structure on Callisto — concentric rings of ridges rippling out from a bright central plain across the most heavily-cratered surface in the Solar System.
Amalthea is a small, reddish inner moon of Jupiter orbiting closer to the planet than the Galilean moons.
Ariel is a moon of Uranus and the brightest of its major satellites.
Charon is the largest moon of the dwarf planet Pluto, roughly half Pluto's diameter.
Deimos is the smaller and outer of the two natural satellites of Mars.
Dione is an icy moon of Saturn marked by bright wispy fractures across its surface.
Enceladus is an icy moon of Saturn that vents plumes of water ice from its south pole.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
Orbital data, ephemerides, and small-body parameters for planets, asteroids, and comets.