Io

Io. Galileo, 3 July 1999

Io

Distance from Sun
5.20 au
Mass
1022×8.931938
Diameter
3 643.2 km
Mean density
3.528 g/cm3
Surface gravity
1.80 m/s2
Escape velocity
2 558 m/s
Rotation period
42.46 hours
Type
Jupiter and Io. Artist's impression