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Largest satellites of the Solar System planets (from largest to smallest) with an average radius of more than 500 km
List format: satellite name (year of discovery) – satellite number and planet to which it belongs: average satellite radius in kilometers
- Ganymede (1610) – 3rd moon of Jupiter: 2634
- Titan (1655) – 6th moon of Saturn: 2574
- Callisto (1610) – 4th of Jupiter: 2410
- Io (1610) – 1st of Jupiter: 1821
- Moon (known at all times) – the only satellite of the Earth: 1738
- Europa (1610) – 2nd of Jupiter: 1560
- Triton (1846) – 1st of Neptune: 1353
- Titania (1787) – 3rd of Uranus: 789
- Rhea (1672) – 5th of Saturn: 763
- Oberon (1787) – 4th of Uranus: 761
- Iapetus (1671) – 8th of Saturn: 735
- Charon (1978) – 1st of Pluto: 606
- Umbriel (1851) – 2nd of Uranus: 584
- Ariel (1851) – 1st of Uranus: 579
- Dione (1684) – 4th of Saturn: 561
- Tethys (1684) – 3rd of Saturn: 533
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