Nereid (moon)
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Nereid, or Neptune II, is the third-largest moon of Neptune. It was the second moon of Neptune to be discovered, by Gerard Kuiper in 1949. It is notable for its unusually eccentric orbit and relativel
Gerard P. Kuiper, discoverer of Nereid
Jupiter family
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Moons of Neptune
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There are 16 known moons of the planet Neptune, fourteen of which are named after water deities and creatures in Greek mythology. The largest is Triton, discovered by William Lassell on 10 October 184
Nereid (moon)
…Nereid, or Neptune II, is the third-largest moon of Neptune. It was the second moon of Neptune to be discovered, by Gerard Kuiper in 1949. It is notable for its unusually eccentric orbit and relatively large size for an irregular satellite. Nereid…
Orbit diagram of Neptune's inner moons, including Triton, with their names and orbit directions indicated
Irregular satellites of all four giant planets, plotted by average distance from their planet (semi-major axis in Hill radii) and orbital inclination (degrees with respect to ecliptic). Irregular moons of Neptune are plotted as blue diamonds. Data as of February 2024.