Satellites within Jupiter's magnetic field

Satellites within Jupiter

. This cross section shows that the four Galilean satellites, Io, Europa, Ganymede and Callisto, are all embedded within Jupiter's magnetosphere. Small satellites orbit Jupiter within the orbit of Io, the innermost Galilean satellite. The outermost Galilean satellite, Callisto, orbits Jupiter near its bow shock. All of these satellites are being continuously bombarded with energetic charged particles that are trapped within Jupiter's magnetosphere. The distance from Jupiter to Callisto is 1.88 billion (1.88 x 109) meters, while the radius of the Sun is 0.6955 billion meters, so Jupiter's bow shock is bigger than the Sun.

Copyright 2010, Professor Kenneth R. Lang, Tufts University