Abstract
(a) History, Discovery. Long-focus photographic astrometry has proven suitable and useful for the discovery and study of perturbations, revealed either as ‘variable’ proper motion of a star previously considered single, or as an irregularity in the Keplerian motion of a visual binary. In either case unseen companions are indicated; the method is particularly effective for large differences in magnitude between primary and companion.
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© 1981 D. Reidel Publishing Company, Dordrecht, Holland
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Van De Kamp, P. (1981). Perturbations in Stellar Paths. History. Analysis. In: Stellar Paths. Astrophysics and Space Science Library, vol 85. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8450-9_13
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DOI: https://doi.org/10.1007/978-94-009-8450-9_13
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-009-8452-3
Online ISBN: 978-94-009-8450-9
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