Solar Obliquity Induced by Planet Nine: Simple Calculation

Abstract

Bailey et al.~(2016) and Gomes et al.~(2016) recently suggested that the 6 degree misalignment between the Sun's rotational equator and the orbital plane of the major planets may be produced by the forcing from the hypothetical Planet Nine on an inclined orbit. Here we present a simple but accurate calculation of the effect, which provides a clear description of how the Sun's spin orientation depends on the property of Planet Nine in this scenario.

3 pages, 3 figures

References in corpus (1)

• Compact planetary systems perturbed by an inclined companion: II. Stellar spin-orbit evolution

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• The Planet Nine Hypothesis
• Origin and Evolution of Short-Period Comets
• Origin and evolution of long-period comets
• Dynamical Evolution Induced by Planet Nine
• Constraints on Planet Nine's Orbit and Sky Position within a Framework of Mean Motion Resonances
• Evaluating the Dynamical Stability of Outer Solar System Objects in the Presence of Planet Nine
• How do External Companions Affect Spin-Orbit Misalignment of Hot Jupiters?
• Revisiting the Full Sets of Orbital Parameters for the XO-3 System: No evidence for Temporal Variation of the Spin-Orbit Angle
• Calibration of the angular momenta of the minor planets in the solar system
• Mean plane of the Kuiper belt beyond 50 AU in the presence of Planet 9