Natural Satellite
Hydra
Hydra is currently about 5,193,890,423 kilometres from Earth, or 34.72 astronomical units, which puts a one-way radio signal 4.8 hours out. It is 35.59 astronomical units from the Sun.
The outermost known moon of Pluto, a small, bright, irregular body of water ice.
Surface composition confirmed as nearly pure water ice.
Right now
- Distance from Earth
- 5,193,890,423 km (34.72 AU)
- Distance from the Sun
- 5,324,188,046 km (35.59 AU)
- One-way signal time
- 4.8 hours
The body
- Mean radius
- 19 km
- Orbital radius
- 64,738 km
- Orbital period
- 38 days