Neptune’s Moons
Neptune has 14 known moons. Key moons include:
- Triton:
- Diameter: 2,710 km (1,678 miles)
- Orbit:
- Average Distance from Neptune: 354,800 km (220,000 miles)
- Orbital Period: 5.9 days
- Composition: Ice and rock, with a thin atmosphere of nitrogen.
- Surface Features: Icy surface with geysers that eject nitrogen gas.
- Proteus:
- Diameter: 418 km (260 miles)
- Orbit:
- Average Distance from Neptune: 117,600 km (73,000 miles)
- Orbital Period: 1.1 days
- Composition: Icy and rocky.
- Surface Features: Dark, heavily cratered surface.