Discovery of two distant irregular moons of Uranus

@article{Gladman1998DiscoveryOT,
  title={Discovery of two distant irregular moons of Uranus},
  author={Brett J. Gladman and Philip D. Nicholson and Joseph A. Burns and J. J. Kavelaars and Brian Geoffrey Marsden and Gareth V. Williams and Warren B. Offutt},
  journal={Nature},
  year={1998},
  volume={392},
  pages={897-899}
}
The systems of satellites and rings surrounding the giant planets in the Solar System have remarkably similar architectures. Closest to each planet are rings with associated moonlets, then larger ‘regular’ satellites on nearly circular orbits close to the planet's equatorial plane, and finally one or more distant, small ‘irregular’ satellites on highly elliptical or inclined orbits. Hitherto, the only departure from this broad classification scheme was the satellite system around Uranus, in… 
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