Numerical Evidence That the Motion of Pluto Is Chaotic

@article{Sussman1988NumericalET,
  title={Numerical Evidence That the Motion of Pluto Is Chaotic},
  author={Gerald J. Sussman and Jack Wisdom},
  journal={Science},
  year={1988},
  volume={241},
  pages={433 - 437}
}
The Digital Orrery has been used to perform an integration of the motion of the outer planets for 845 million years. This integration indicates that the long-term motion of the planet Pluto is chaotic. Nearby trajectories diverge exponentially with an e-folding time of only about 20 million years. 
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