Galilean Moon
Callisto
Callisto is currently about 929,978,871 kilometres from Earth, or 6.217 astronomical units, which puts a one-way radio signal 51.7 minutes out. It is 5.290 astronomical units from the Sun.
The outermost Galilean moon, one of the most heavily cratered objects in the solar system and a possible future crewed base.
Studied as a low-radiation staging post for outer-system exploration.
Right now
- Distance from Earth
- 929,978,871 km (6.217 AU)
- Distance from the Sun
- 791,336,633 km (5.290 AU)
- One-way signal time
- 51.7 minutes
The body
- Mean radius
- 2,410 km
- Orbital radius
- 1,882,709 km
- Orbital period
- 17 days