1. Hit preset and choose "Earth and Sun". Place a Jupiter mass planet
at postion Y = 0 and X = 5 AU (this is about the real position of
Jupiter). On the line joining the Earth and this Jupiter, place 5 more
Jupiter sized masses and 5 Earth sized masses. Hit play and watch the
evolution. Use left-click only so that your planets will all start on
circular orbits. Describe the state of the planetary system after
100 years. Repeat the exercise three times. What do you
find in common with each evolved planetary system?