Abstract
If a binary companion to the Sun exists as proposed by Davis et al. and Whitmire and Jackson, then one can consider a planet/comet-Sun-solar companion system and use King-Innanen's formula to calculate the limiting direct and retrograde orbits around the Sun. The limiting retrograde orbit could be considered as the boundary to the Solar System. We study the problem for the companion having a mass in the range 0.005M ⊙–0.3M ⊙ and find the corresponding boundary to the Solar System.
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Rawal, J.J. The boundary to the solar system as set by a hypothetical Solar companion. Earth Moon Planet 36, 211–215 (1986). https://doi.org/10.1007/BF00055160
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DOI: https://doi.org/10.1007/BF00055160