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Top 5 largest moons in the Solar System

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Diameter — Astronomy

Snapshot · 2026-05-31

  1. 1

    Ganymede (Jupiter)

    5,268 km

  2. 2

    Titan (Saturn)

    5,150 km

  3. 3

    Callisto (Jupiter)

    4,821 km

  4. 4

    Io (Jupiter)

    3,660 km

  5. 5

    Moon (Earth)

    3,475 km