Titania
1,578 kmacross
Titania is 1,578 km across and orbits Uranus at 435,900 km, once every 8.7 days. The largest moon of Uranus, scarred by huge canyons — seen up close only once, by Voyager 2 in 1986.
▶ Visit Titania in 3D
Why this moon matters
Titania — named, like all of Uranus’ moons, for characters from Shakespeare and Pope — is a canyon-scarred ice world seen up close exactly once, when Voyager 2 raced past in January 1986. Its trench systems, like the 1,500 km Messina Chasma, suggest the whole moon once expanded and cracked as its interior froze. Everything else about it awaits a second visit that has no date.
Like its planet, Titania orbits tipped on its side — so each pole gets 42 years of daylight, then 42 years of night.
Titania by the numbers
Diameter
1,578 km
Distance from Uranus
435,900 km
Orbit period
8.7 days
Rotation
tidally locked
Surface gravity
0.38 m/s²
Temperature
−203 °C
Orbital speed
3.6 km/s
Sunlight travel time
2.7 hours
In the interactive view you can fly to Titania directly and ride along as it circles Uranus.
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 Found something out of date?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.