Neptune Society Summerfield Obituaries. html. html Scott S. He missed Proteus, the second-largest becau
html. html Scott S. He missed Proteus, the second-largest because it's too dark and too close to Neptune for telescopes of that era. Overview Proteus is one of the largest of Neptune's known moons, although it is not as big as Triton. Oct 21, 2025 · NASA’s real-time science encyclopedia of deep space exploration. edu/users/sheppard/satellites/plutosatdata. Proteus orbits Neptune about every 27 hours. Oct 21, 2025 · Moons About Moons BY DESTINATION Earth (1) Mars (2) Jupiter (95) Saturn (83) Uranus (27) Neptune (14) Pluto (5) Asteroids, Comets & Meteors About Asteroids, Comets & Meteors BY TYPE Oct 21, 2025 · NASA’s real-time science encyclopedia of deep space exploration. Please upgrade your browser to improve your experience. Oct 21, 2025 · Moons About Moons BY DESTINATION Earth (1) Mars (2) Jupiter (95) Saturn (83) Uranus (27) Neptune (14) Pluto (5) Asteroids, Comets & Meteors About Asteroids, Comets & Meteors BY TYPE In 1943, astronomer Kenneth Edgeworth hypothesized that many small, icy bodies exist in a disc in the region beyond Neptune, having condensed from widely spaced ancient material, and that from time to time one of them visits the inner solar system.