Earth’s Trojan asteroid

@article{Connors2011EarthsTA,
  title={Earth’s Trojan asteroid},
  author={M. Connors and P. Wiegert and C. Veillet},
  journal={Nature},
  year={2011},
  volume={475},
  pages={481-483}
}
It was realized in 1772 that small bodies can stably share the same orbit as a planet if they remain near ‘triangular points’ 60° ahead of or behind it in the orbit. Such ‘Trojan asteroids’ have been found co-orbiting with Jupiter, Mars and Neptune. They have not hitherto been found associated with Earth, where the viewing geometry poses difficulties for their detection, although other kinds of co-orbital asteroid (horseshoe orbiters and quasi-satellites) have been observed. Here we report an… Expand

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