With the 7x50 binoculars, I was able to see Ganymede and Callisto. Because I could see only 2 out of the 4 Galilean moons, I initially mistook two stars for moons.

After checking Stellarium, it became clear that I was not able resolve Europa (too close to Jupiter?) and that Io wasn't observable because it was transiting in front or behind Jupiter.

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  • Observed with: 7x50 binoculars Celestron Cometron
  • Seeing: average
  • Light pollution: average