World

Titania

Titania is Uranus’s largest moon, neutral grey, split by fault valleys nearly 1 600 km long, about 1 578 km across.

Key facts

Diameter

1 578 km

Goes round

Uranus

See it from here

Not by eye: Titania is magnitude 13.9, the brightest of Uranus’s moons, and still needs a telescope of some size.

How the map draws it

Its surface is a black-and-white mosaic, tinted in a colour chosen from published descriptions · only the southern half was photographed, by Voyager 2 in 1986; the rest is left plain, not guessed · lit as a camera exposed for its own sunlight would show it · seen from far off it is a light at its computed brightness: the glow is how a camera records a point too bright to resolve.