Three planets for Upsilon Andromedae

@article{Lissauer1999ThreePF,
  title={Three planets for Upsilon Andromedae},
  author={Jack J. Lissauer},
  journal={Nature},
  year={1999},
  volume={398},
  pages={659-659}
}
In 1997 a planet of roughly Jupiter's mass was discovered in orbit around the star Andromedae. Two more have now been identified, providing the first example of a solar system other than our own containing more than one planet. 
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