Astrometric search for unseen stellar and sub-stellar companions to nearby stars and the possibility of their detection

@article{Lippincott1978AstrometricSF,
  title={Astrometric search for unseen stellar and sub-stellar companions to nearby stars and the possibility of their detection},
  author={Sarah Lee Lippincott},
  journal={Space Science Reviews},
  year={1978},
  volume={22},
  pages={153-189}
}
  • S. Lippincott
  • Published 1 July 1978
  • Physics, Geology
  • Space Science Reviews
Unseen companions to nearby stars are found astrometrically through perturbations in the proper motion from photographs taken with long-focus telescopes. The number of known unseen astrometric companions to nearby stars with photocentric orbits has grown by thirty percent in the last few years. Individual cases are discussed and optimum epochs given for resolution of the components. Orbital analysis of the photocentric positions on the photographic plates provides all information for accurate… 

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