Tritonball is the largest moonball of 
Neptuneball.
Due to his retrograde orbit and composition, he likely is a captured dwarf planet that once had a binary companion billions of years ago.
He also is one of the few known geologically active moons, with cyrogeysers and cyrovolcanic terrein. Thus, like Earthball, he has relatively few craters, as most of them are covered by water-ammonia "lava" within a relatively short timespan. He also is known to hold a thin, teneous nitrogen atmosphere.
Composition
Triton is covered in ice made of frozen carbon dioxide, also the radius off 1,680 miles (2,710 killometers) Triton ammonia and nitrogen. There are hypotheses that under the icy surface of the satellite there is an ocean like on 
Europa There is a theory that Neptune captured Triton from the Kuiper belt
Surface Features
All detailed knowledge of the surface of Triton was acquired from a distance of 40,000 km by the Voyager 2 spacecraft during a single encounter in 1989. The 40% of Triton's surface imaged by Voyager 2 revealed blocky outcrops, ridges, troughs, furrows, hollows, plateaus, icy plains and a few craters. Triton is relatively flat; its observed topography never varies beyond a kilometer. The impact craters observed are concentrated almost entirely in Triton's leading hemisphere. Analysis of crater density and distribution has suggested that in geological terms, Triton's surface is extremely young, with regions varying from an estimated 50 million years old to just an estimated 6 million years old. Fifty-five percent of Triton's surface is covered with frozen nitrogen, with water ice comprising 15–35% and frozen CO2 forming the remaining 10–20%. The surface shows deposits of tholins, organic chemical compounds that may be precursors to the origin of life.
Cryovolcanism
One of the largest cryovolcanic features found on Triton is Leviathan Patera, a caldera-like feature roughly 100 km in diameter seen near the equator. Surrounding this caldera is a volcanic dome that stretches for roughly 2,000 km along its longest axis, indicating that Leviathan is the second largest volcano in the solar system by area, after Alba Mons. This feature is also connected to two enormous cryolava lakes seen northwest of the caldera. Because the cryolava on Triton is believed to be primarily water ice with some ammonia, these lakes would qualify as stable bodies of surface liquid water while they were molten. This is the first place such bodies have been found apart from Earth, and Triton is the only icy body known to feature cryolava lakes, although similar cryomagmatic extrusions can be seen on Ariel, Ganymede, Charon, and Titan.
Cantaloupe Terrain
On Tritonball's western hemisphere, there are a strange series of fissures that is known as cantaloupe terrain, due to its resembelance to the skin of a cantaloupe. Although it has relatively few impact craters, it seems to be some of the oldest terrain on his surface.
The terrain, composed of dirty water ice, is found only on Tritonball's surface. There are depressions in the terrain about 30-40 km in diameter, and it is unlikely that they are impact craters, as they are roughly equal in size and have smoothe edges. It is mainly thought this unique feature formed from diapirism.
Orbit - Rotation
Triton has one of the most unique orbits in the Solar System because it orbits in the opposite direction relative to the planet's rotation
Gallery
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