Details : Item 214

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Terrestrial planets
Gas giants
Gas giants 2
Ice giants
Dwarf planets
Others

Famille : Gas giants/Son
Io
Moon of Jupiter
The driest known object in the Solar System
With over 400 active volcanoes, Io is the most
geologically active object in the Solar System
Properties
Albedo0.63
Radius (km)1,821.6
Mass (kg)89.3x10+22
Density (g/cm3)3.528
Gravity (m/s2)1.797
Orbital period (days)1.769
Orbital speed (km/s)17.334
Temperature (K)110
Discovery date1610 (G.Galileo)