Despina
Moon· orbits Neptune
Despina — moon of Neptune.
Open in 3D viewSee Despina in the live, interactive 3D map
Key facts
Mass (est.)
1.75 × 10¹⁸ kg
0.0000238 Moon masses
Radius
74 km
4% of our Moon's radius
Surface gravity
0.0213 m/s²
0% of Earth's
Orbit around Neptune
8.1 hours
0.34 Earth days
Science
Physical
- Mass (estimated)
- 1.75 × 10¹⁸ kg · 0.0000238 Moon masses
- Radius
- 74 km · 4% of our Moon's radius
- Surface gravity
- 0.0213 m/s² · 0% of Earth's
- Escape velocity
- 56.2 m/s · 1% of Earth's
Orbit around Neptune
- Distance from Neptune
- 2,963,720 km
- Orbital period
- 8.05 hours
- Eccentricity
- 0.001253
- Inclination
- 47.08 °
Radiation & temperature
- Insolation
- 0.00112 S⊕ · 1/893 of the sunlight Earth receives
Discovery & history
- By
- Voyager Science Team
Despina was discovered in 1989 by Voyager Science Team. Neptune's moons are named after sea deities and nymphs of Greek mythology. Beyond its discovery and naming, little more about it has been individually recorded.
Images
No official imagery available — this object has never been visited and no officially-licensed depiction exists.