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News and Views
Nature 441, 162-163 (11 May 2006) | doi:10.1038/441162a; Published online 10 May 2006
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Solar system: Interplanetary kidnap
Alessandro Morbidelli1
Abstract
Triton, Neptune's largest moon, was probably part of a two-body object similar to the Pluto–Charon system. This tandem might have been ripped apart when it strayed too close to the planet that Triton is now orbiting.
The neptunian moon Triton weighs in at 1.4 times the mass of Pluto, making it the largest irregularly orbiting satellite in the Solar System.
- Alessandro Morbidelli is at the Laboratoire Cassiopée, Observatoire de la Côte d'Azur, BP 4229, 06304 Nice Cedex 4, France.
Email: morby@obs-nice.fr
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