Jupiter – four large moons and the Great Red Spot

Jupiter is one of the most impressive subjects in planetary astrophotography. In addition to its cloud bands and atmospheric structures, its four large Galilean moons make the system particularly fascinating. Io, Europa, Ganymede and Callisto were observed by Galileo Galilei in 1610 and can be seen with relatively small telescopes under good conditions.

The moons orbit Jupiter at different speeds and therefore constantly change their positions relative to the planet. Depending on the time of observation, they may appear far from Jupiter, close to its disk, or disappear behind or pass in front of the planet. Images showing several moons together with Jupiter are particularly interesting.

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