Summary
The positions of the Lagrangian points of the Pluto-Charon system have been determined using the orthogonal system of cofocal ellipses-hyperbolas, the foci being situated at the centre of mass of the bodies. The tidal distortions of Pluto amount to 30 m, those of charon to 122 m. The tidal forces are believed to influence the figures of the bodies significantly.
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Burša, M. Roche equipotentials of the pluto-charon system. Stud Geophys Geod 39, 1–10 (1995). https://doi.org/10.1007/BF02296629
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DOI: https://doi.org/10.1007/BF02296629