Markus,
the closest sim I have used in the past has been JPLs Solar System Simulator.
https://space.jpl.nasa.gov/
Mars the other night was amazing. I had a mate over with 3 of his kids and
both of mine. We had a ball. 4 planets in ten minutes. Saturn and Mars
the favourites. Mars in the eyepiece looked exactly like the sim.
This is what we saw
https://space.jpl.nasa.gov/cgi-bin/w...ov=30&showac=1
Steve