Io, Europa, Ganymede, and Callisto are the individual moons. If you're looking for a term that covers all of them, they're often referred to as the "Galilean satellites" since they're the ones Galileo saw. They're readily visible in even an extremely modest telescope.
The four large moons on Jupiter, or Galilean moons for the astronomer who discovered them, are called Io, Europa, Ganymede, and Callisto.
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Jupiter has a thin ring which is composed of three parts: a main ring, a halo, and an outer ring. Also, Jupiter has a three inner moons. These moons, named Metis, Adrastea, and Thebe, along with Amalthea.
they are called moons
It is the smallest of the four inner moons of Jupiter.
Jupiter has four large moons known as the Galilean moons. These moons are Io, Europa, Ganymede, and Callisto. They are considered important because of their size, unique features, and potential for scientific study.
Jupiter has 63 confirmed moons, and 8 regular satellites (split into Main Group and Inner Satellites). The four largest (Main Group or Galilean Moons) are terms of relative mass are Ganymede, Callisto, Io and Europa. The other four moons (Inner Satellites or Amalthea Group) are called Metis, Adrastea, Amalthea and Thebe. For further information enter 'moons of Jupiter' in WIKI.
Jupiter has the most moons among the Jovian planets, with a total of 79 known moons to date.
Jupiter does - called Ganymede.
Callisto is the 2nd largest and 8th closest of Jupiter's known moons, with an orbit about 1.8 million km from Jupiter. It was discovered by Galileo in 1610 and is the most distant from Jupiter of the 4 large Galilean moons. Jupiter's large moons orbit rapidly compared to Earth's Moon. Callisto circles Jupiter every 16.7 Earth days.
Jupiter has those, plus at least 48 more satellites.
Both Jupiter and Saturn have a large amount of moons, some of them quite large.