What is Neptune's largest moon?

Triton is indeed recognized as Neptune's largest moon, and this distinction arises from several notable features and characteristics. Triton has a diameter of about 2,707 kilometers (1,680 miles), making it significantly larger than any of Neptune's other moons. It is also unique because it orbits Neptune in a retrograde direction, which suggests that it may have been captured by Neptune's gravity rather than having formed in orbit around the planet.

Additionally, Triton is geologically active, showcasing geysers that eject nitrogen gas, which is indicative of ongoing processes beneath its icy surface. This dynamic quality, along with its size and unusual orbit, solidifies Triton’s place as the most prominent and interesting moon of Neptune.

In contrast, the other moons listed—Oberon, Miranda, and Umbriel—are all moons of Uranus and do not pertain to Neptune, reinforcing Triton’s status as the largest moon of Neptune. Thus, Triton stands out not only for its size but also for its intriguing geological activity and unique orbit.