Moons of Neptune
Neptune has 15 known natural satellites.
Major Moons
The most significant natural satellites
Other Moons
14 smaller natural satellites
Naiad
A moon of Neptune.
60.4 km
Diameter
0.3 d
Orbit
1989
Discovered
Thalassa
A moon of Neptune.
81.4 km
Diameter
0.3 d
Orbit
1989
Discovered
Despina
A moon of Neptune.
150 km
Diameter
0.3 d
Orbit
1989
Discovered
Galatea
A moon of Neptune.
174.8 km
Diameter
0.4 d
Orbit
1989
Discovered
Larissa
A moon of Neptune.
193.6 km
Diameter
0.6 d
Orbit
1981
Discovered
Hippocamp
A moon of Neptune.
34.8 km
Diameter
0.9 d
Orbit
2013
Discovered
Proteus
A moon of Neptune.
420 km
Diameter
1.1 d
Orbit
1989
Discovered
Nereid
A moon of Neptune.
340 km
Diameter
360.1 d
Orbit
1949
Discovered
Halimede
A moon of Neptune.
62 km
Diameter
1879.1 d
Orbit
2002
Discovered
Sao
A moon of Neptune.
44 km
Diameter
2912.7 d
Orbit
2002
Discovered
Laomedeia
A moon of Neptune.
42 km
Diameter
3171.3 d
Orbit
2002
Discovered
Psamathe
A moon of Neptune.
40 km
Diameter
9074.3 d
Orbit
2003
Discovered
Neso
A moon of Neptune.
60 km
Diameter
9740.7 d
Orbit
2002
Discovered
S/2021 N 1
A moon of Neptune.
14 km
Diameter
9797.0 d
Orbit
2021
Discovered