Show me a picture of neptune12/20/2023 ![]() ![]() Inward of Triton are seven small regular satellites, all of which have prograde orbits in planes that lie close to Neptune's equatorial plane some of these orbit among Neptune's rings. Triton is massive enough to have achieved hydrostatic equilibrium and to retain a thin atmosphere capable of forming clouds and hazes. The capture of Triton, probably occurring some time after Neptune formed a satellite system, was a catastrophic event for Neptune's original satellites, disrupting their orbits so that they collided to form a rubble disc. The next-largest satellite in the Solar System suspected to be captured, Saturn's moon Phoebe, has only 0.03% of Triton's mass. Triton is unique among moons of planetary mass in that its orbit is retrograde to Neptune's rotation and inclined relative to Neptune's equator, which suggests that it did not form in orbit around Neptune but was instead gravitationally captured by it. Neptune's outermost moon Neso, which has an orbital period of about 27 Julian years, orbits farther from its planet than any other moon in the Solar System. Over a century passed before the discovery of the second natural satellite, Nereid, in 1949, and another 40 years passed before Proteus, Neptune's second largest moon, was discovered in 1989. By far the largest of them is Triton, discovered by William Lassell on October 10, 1846, 17 days after the discovery of Neptune itself. The planet Neptune has 14 known moons, which are named for minor water deities in Greek mythology. The bright blue diffraction star is Triton, Neptune's largest moon. An annotated picture of some of Neptune's many moons as captured by the James Webb Space Telescope. ![]()
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