I'm an expert in astronomy with a focus on celestial bodies and their characteristics. When it comes to the largest moon of Neptune, there is a specific name that is widely recognized among astronomers.

The largest moon of Neptune is Triton. Triton was discovered by British astronomer William Lassell in 1846, just 17 days after the discovery of Neptune itself. It is not only the largest moon orbiting Neptune but also one of the coldest known objects in the Solar System, with temperatures near -235 degrees Celsius (-391 degrees Fahrenheit) at its surface.

Triton has a number of unique features that make it stand out among the moons in our Solar System. It is one of the few moons in the Solar System that has a retrograde orbit, meaning it orbits Neptune in the opposite direction to Neptune's rotation. This has led many scientists to believe that Triton may have been a captured object, possibly a former member of the Kuiper Belt, which is a region of the Solar System beyond Neptune's orbit that contains many small icy bodies.

Triton is also geologically active, with geysers that spout nitrogen gas and dust particles into space. Its surface is composed primarily of water ice, nitrogen ice, and methane ice, and it has a relatively young surface with few impact craters, suggesting that it has been resurfaced relatively recently in geological terms.

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Neptune has a total of 14 moons. The largest moon is Triton which was discovered by William Lassell just seventeen days after Neptune was found. One hundred years later the second moon, Nereid was found.read more >>