Triton

Triton, also known as Neptune I, is a moon of Neptune.

10th of October 1846

 * Triton was discovered by William Lassell.

Other Facts

 * Triton's surface is mostly frozen nitrogen, crust being water ice, an icy mantle and a rock and metal core.
 * Triton's atmosphere contains nitrogen and methane.
 * Triton is tidally locked with Neptune.
 * Triton's surface temperature is about -235.15°C.