Callisto

American  

[kuh-lis-toh] / kəˈlɪs toʊ /

noun

1. Classical Mythology. Also Kallisto a nymph attendant on Artemis, punished for a love affair with Zeus by being changed into a bear and then transformed into stars as the constellation Ursa Major.

2. Astronomy. a large natural satellite of the planet Jupiter.

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Callisto ¹ British  

/ kəˈlɪstəʊ /

noun

1. the second largest (but faintest) of the four Galilean satellites of Jupiter, discovered in 1610 by Galileo. Approximate diameter: 4800 km; orbital radius: 1 883 000 km See also Galilean satellite

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Callisto ² British  

/ kəˈlɪstəʊ /

noun

1. Greek myth a nymph who attracted the love of Zeus and was changed into a bear by Hera. Zeus then set her in the sky as the constellation Ursa Major

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Callisto Scientific  

/ kə-lĭs′tō /

1. One of the four brightest satellites of Jupiter and the eighth in distance from the planet. Originally sighted by Galileo, it is the largest planetary satellite.

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Example Sentences

Before the collision, Proto-Titan may have resembled Jupiter's moon Callisto, heavily cratered and lacking an atmosphere.

From Science Daily • Feb. 27, 2026

Its targets include Callisto, Europa and Ganymede, the largest moon in the solar system.

From Seattle Times • Apr. 28, 2023

Clipper’s data should provide a strong comparison for JUICE’s view of Europa’s ice that would be sufficient to extrapolate and distinguish against whatever the European spacecraft sees at Ganymede and, potentially, Callisto.

From Scientific American • Apr. 24, 2023

It will take the robotic explorer, dubbed Juice, eight years to reach Jupiter, where it will scope out not only the solar system’s biggest planet but also Europa, Callisto and Ganymede.

From Washington Times • Apr. 14, 2023

We round Callisto and pass the orbit of Jupiter 13, the outermost of the planet’s known moons.

From "Cosmos" by Carl Sagan