Moon
Triton
Neptune’s largest moon orbits backwards, a sign it was captured from the Kuiper belt. Voyager 2 saw nitrogen geysers on its surface in 1989.
| Diameter | 2,707 km |
|---|---|
| Distance from Neptune | 354,759 km |
| Orbital period | 5.88 days (retrograde) |
| Naked-eye visible | No |