All together, Jupiter's moons form a satellite system called the Jovian system. The most massive of the moons are the four Galilean moons: Io, Europa, Ganymede, and Callisto, which were independently discovered in 1610 by Galileo Galilei and Simon Marius and were the first objects found to orbit a body that was neither Earth nor the Sun.

Jupiter is the largest planet in the solar system and has, as of 2023, 95 known moons. The four largest moons of Jupiter—Io, Callisto, Ganymede, and Europa—were the first objects in the solar system discovered with a telescope. Galileo discovered them …

2025年1月29日 · 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.

The Galilean moons (/ ˌɡælɪˈleɪ.ən /), [1] or Galilean satellites, are the four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto.

2020年1月9日 · Peering through his newly-improved 20-power homemade telescope at the planet Jupiter on Jan. 7, 1610, Italian astronomer Galileo Galilei noticed three other points of light near the planet, at first believing them to be distant stars.

2023年6月8日 · Most of Jupiter's moons are small, with about 60 of the satellites measuring less than 6.2 miles (10 kilometers) in diameter. Unusually, the outer moons orbit in the opposite direction to...

Jupiter, the largest planet in our solar system, has a whopping 4 satellites, 46 moons, and 17 provisional moons (discovered body that has not been fully identified nor named but is temporarily given a provisional name and considered a moon). Many of these moons are identified in groups and called "Jovian Satellites" due to their similar ...

22 小时之前 · Jupiter has at least 95 moons and many more smaller moonlets. To explore the role of shadows in their formation, Antoine Schneeberger and Olivier Mousis, astrophysicists at Aix-Marseille University, used a computer to model Jupiter’s long-gone CPD in 2D, examining the disk’s cross-section and how it was structured in distance from the ...

1999年3月6日 · Jupiter, its Great Red Spot and three of its four largest satellites are visible in this photo taken Feb. 5, 1979, by Voyager 1. The spacecraft was 28.4 million kilometers (17.5 million miles) from the planet at the time. The innermost large satellite, Io, can be seen against Jupiter’s disk. Io is distinguished by its bright, brown-yellow ...

2 天之前 · In order of increasing distance from the planet, these satellites are called Io, Europa, Ganymede, and Callisto, for figures closely associated with Jupiter in Greek mythology. The names were assigned by the German astronomer Simon Marius, Galileo’s contemporary and rival, who likely discovered the satellites independently.