The magnetosphere of Jupiter, extends up to seven million kilometers in the Sun's direction and almost to the orbit of Saturn in the opposite direction. If it was visible, this is what
The Magnetic Field of Jupiter
Jupiter and Ganymede are Connected by Magnetic Fields - Universe Today
Jupiter Magnetosphere Overview: Size, Shape and Science
Jupiter's Magnetic Field Creates Dangerous Ions | CosmoQuest
Hear the Eerie Radio Emissions NASA's Juno Spacecraft Recorded From Jupiter and Its Moon Io
Chapter 11, Section 4
NASA's Juno Finds Changes in Jupiter's Magnetic Field | NASA