| Moon (Luna) | Earth | 3,474.2 | Only moon of Earth, first and only moon visited by humans. |
| Io | Jupiter | 3,643.2 | Most volcanically active body in the solar system. |
| Titan | Saturn | 5,149.4 | Only moon in the solar system with a substantial atmosphere. |
| Ganymede | Jupiter | 5,268.2 | Largest moon in the solar system. |
| Callisto | Jupiter | 4,821 | Most heavily cratered object in the solar system. |
| Triton | Neptune | 2,706.8 | Orbits Neptune in the opposite direction of the planet’s rotation. |
| Titania | Uranus | 1,578 | Largest moon of Uranus. |
| Charon | Pluto (Dwarf Planet) | 1,212 | So big compared to Pluto that they are sometimes considered a double dwarf planet. |
