Go Astr☾nomy
Io

Moons of Jupiter: Io

Io is one of the 4 large Galilean moons of the planet Jupiter. For a listing of other moons, see Moons of the Planets.

Io Stats
      1. Mass (kg)
      2. 8.94e+22
      1. Radius (km)
      2. 1,815
      1. Density (gm/cm3)
      2. 3.55
      1. Distance from planet (km)
      2. 421,600
      1. Rotational period (days)
      2. 1.769138
      1. Orbital period (days)
      2. 1.769138
      1. Orbital velocity (km/sec)
      2. 17.34
      1. Eccentricity of orbit
      2. 0.004
      1. Inclination of orbit (°)
      2. 0.040
      1. Albedo
      2. 0.61
      1. Magnitude (Vo)
      2. 5.02
      1. Atmosphere
      2. sulfur dioxide - 90%