Key facts
- Mean diameter
- 116,460 km
- Mass
- 5.68 × 10^26 kg (95.1 Earths)
- Surface gravity
- 9 m/s² (0.918 g)
- Escape velocity
- 35.5 km/s
- Mean temperature
- -140 °C
- Rotation period
- 10.7 hours
- Orbital period
- 10,747 days
- Mean distance from the Sun
- 1,432 million km
- Sunlight travel time
- 1 h 19 min
- Axial tilt
- 26.7°
- Confirmed moons
- 285
Moon counts as reported after the IAU Minor Planet Center announcements of March 2026. Counts change as new discoveries are confirmed.
Atmosphere
Hydrogen and helium with ammonia-ice cloud decks; hexagonal jet stream at the north pole.
Composition and structure
Gas giant with a rocky-icy core region and very low mean density (0.687 g/cm³).
Discovery and exploration
Galileo saw its rings in 1610; Huygens identified them as a ring in 1655. Pioneer 11 and both Voyagers flew by. Cassini–Huygens orbited 2004–2017 and landed the Huygens probe on Titan.
Major moons
- Titan — A hazy moon with methane rain, rivers and seas.
- Enceladus — A bright icy moon venting a subsurface ocean into space.