| Naam | Afstand tot
Neptunus
(RN) |
Omloop-
periode (dagen) |
Straal
(km) |
Massa
(Maan=1) |
Dichtheid
(g/cm3) |
|---|---|---|---|---|---|
| Naiad | 1.94 | 0.30 | (25) | ? | ? |
| Thalassa | 2.0 | 0.31 | (40) | ? | ? |
| Despina | 2.12 | 0.33 | (90) | ? | ? |
| Galatea | 2.5 | 0.43 | (75) | ? | ? |
| Larissa | 3.0 | 0.55 | (95) | ? | ? |
| Proteus | 4.7 | 1.12 | (200) | ? | ? |
| Triton | 14 | 5.9 (r) | 1.350 | 0.29 | 2.07 |
| Nereid | 223 | 360 | (170) | ? | ? |