Titan
5,150 kmacross
Titan is 5,150 km across and orbits Saturn at 1,221,900 km, once every 15.9 days. The only moon with a thick atmosphere — denser than Earth’s — with methane rain, rivers and seas of liquid natural gas.
▶ Visit Titan in 3D
Why this moon matters
Titan runs a full weather cycle like Earth’s — but with methane instead of water: clouds, rain, rivers and polar seas of liquid natural gas under a smoggy nitrogen atmosphere half again as dense as ours. ESA’s Huygens probe touched down here in 2005, still the most distant landing ever made. NASA’s Dragonfly rotorcraft is due to fly its skies in 2034.
Its air is so dense and gravity so low that a human with strap-on wings could fly under their own muscle power.
Titan by the numbers
Diameter
5,150 km
Distance from Saturn
1,221,900 km
Orbit period
15.9 days
Rotation
tidally locked
Surface gravity
1.35 m/s²
Temperature
−179 °C
Orbital speed
5.6 km/s
Sunlight travel time
1.3 hours
In the interactive view you can fly to Titan directly and ride along as it circles Saturn.
Keep going
✓ Facts verified July 2026
Every figure on this page is a real, rounded value checked against primary sources. Found something out of date? See how we keep it accurate.