Callisto (/ kəˈlɪstoʊ / kə-LIST-oh), or Jupiter IV, is the second-largest moon of Jupiter, after Ganymede. In the Solar System it is the third-largest moon after Ganymede and Saturn 's largest moon Titan, and nearly as large as the smallest planet Mercury.

2024年11月1日 · Callisto is Jupiter’s second largest moon and the third largest moon in our solar system. Its surface is the most heavily cratered of any object in our solar system. Images of Callisto captured by passing spacecraft show bright …

2024年11月6日 · Callisto is Jupiter’s second largest moon after Ganymede and it’s the third largest moon in our solar system. It’s almost as big as Mercury. Callisto’s circumference at its equator is about 9,410 miles (15,144 kilometers).

2023年4月19日 · Callisto is Jupiter's second-largest moon and the outermost of the Galilean satellites. It has an ancient, cratered surface, indicating that geological processes could be...

Callisto is the second largest moon in the Jupiter system and is nearly the size of Mercury. It is the most distant of the Galilean moons from Jupiter. It was discovered in 1610 by Galileo Galilei and independently observed by Simon Marius.

Callisto is the eighth moon of Jupiter and the second largest of the planet's known satellites. It is the third largest moon in the solar system and is similar in size to the planet Mercury.

2017年7月5日 · Callisto is Jupiter’s second-biggest moon, and the third-biggest moon in the solar system, after another one of Jupiter’s moons, Ganymede, and then Titan, the largest moon of the planet Saturn. As with Jupiter’s main moons Io, Ganymede, and Europa, Callisto was discovered by Galileo on January 7th of the year 1610. Below are some more ...

Callisto is a moon of the planet Jupiter. It was discovered in 1610 by Galileo Galilei and named after Kallisto. [1] It is the second largest moon orbiting Jupiter, after Ganymede, and the third largest moon in the Solar System. [4] Callisto is almost the same size as the planet Mercury, being 99% the diameter of the planet, but is much less ...

2025年3月9日 · Callisto, outermost of the four large moons (Galilean satellites) discovered around Jupiter by the Italian astronomer Galileo in 1610. It was probably also discovered independently that same year by the German astronomer Simon Marius, who named it …

2024年11月5日 · Callisto and Jupiter’s three other largest moons were discovered in 1610 by Italian scientist Galileo Galilei. Almost 400 years later, a spacecraft bearing his name—the Galileo orbiter—began the first in depth study of the Jovian system, including Callisto and …