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  1. The Galilean moons (/ ˌ ɡ æ l ɪ ˈ l eɪ. ə n /), or Galilean satellites, are the four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto. They are the most readily visible Solar System objects after the unaided visible Saturn , the dimmest of the classical planets , allowing observation with common binoculars , even ...

  2. en.wikipedia.org › wiki › JupiterJupiter - Wikipedia

    In 1610, Italian polymath Galileo Galilei discovered the four largest moons of Jupiter (now known as the Galilean moons) using a telescope. This is thought to be the first telescopic observation of moons other than Earth's.

    • 13.07 km/s (8.12 mi/s)
    • 9.9250 hours (9 h 55 m 30 s)
    • 12.6 km/s (7.8 mi/s; 45,000 km/h)
    • 200–600 kPa (30–90 psi), (opaque cloud deck)
  3. 9 de ene. de 2020 · Astronomers still refer to the four moons as the Galilean satellites in honor of their discoverer. The German astronomer Johannes Kepler suggested naming the satellites after mythological figures associated with Jupiter, namely Io, Europa, Ganymede, and Callisto, but his idea didn’t catch on for more than 200 years.

  4. 26 de dic. de 2023 · Kate Howells • Dec 26, 2023. What are Jupiter’s Galilean moons? Although Jupiter has at least 95 known moons, the four largest, known as the Galilean moons, are the best-known and arguably the most interesting. Io, Europa, Ganymede, and Callisto are collectively the Galilean moons.

  5. Jan. 7, 1610. Moon Count. 95. Next mission. Europa Clipper. Featured Moons. Jupiter's four largest moons were the first moons discovered beyond Earth. They are called the Galilean satellites after Italian astronomer Galileo Galilei, who is credited with their discovery in 1610.