Moon
Nereid
TypeMoon
Mass3.1 × 10¹⁹ kg
Diameter340 km
Orbital Radius5.5 million km
Orbital Period360.13 days
Rotation Period11.6 hours
Known Moons0
Surface Gravity~0.07 m/s²
Average Temp-222 °C
AtmosphereNone
Discovered ByGerard Kuiper
Discovery Year1949
About Nereid
A distant moon with the most eccentric orbit of any known satellite, swinging between 1.4 and 9.7 million km from Neptune. Likely a survivor of the chaos caused when Triton was captured.
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