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Galilean moons

Four largest moons of Jupiter

Entitycollective entity natural satellite groupQ3203

Also known as Galilean satellite · Galilean moon · Galilean satellites · the Galilean moons

Instance of: collective entity
, natural satellite group

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

The Galilean moons, or Galilean satellites, are the four largest moons of Jupiter. They are, in descending-size order, Ganymede, Callisto, Io, and Europa. They are the most readily visible Solar System objects after Saturn, the dimmest of the classical planets; though their closeness to bright Jupiter makes naked-eye observation very difficult, they are readily seen with common binoculars, even under night sky conditions of high light pollution. The invention of the telescope allowed astronomers to discover the moons in 1610. Through this, they became the first Solar System objects discovered since humans have started tracking the classical planets, and the first objects to be found to orbit any planet beyond Earth.

Overview

All data

24 statements · 21% with external sources · numbers in brackets are citations

Members / parts: Io
Europa
Ganymede
Callisto
Named after: Galileo Galilei
Orbits: Jupiter

On other databases

16 identifiers linking Galilean moons across the web's reference databases

Data quality

statements

21%

externally sourced

Source last edited October 7, 2026. AIDB refreshes this page daily.

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AIDB. (2026). Galilean moons (Q3203). Retrieved from https://aidb.si/e/galilean-moons-Q3203