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what is the hill sphere of the sun?

what is the hill sphere of the sun?

Science   Advanced-Physics   
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Answer #1

Actually,the Hill spheres are the circular regions surrounding the two large masses (Earth and sun radii are not to scale.)Also,The Hill sphere is the region of gravitational influence.

In other words, the extent of the Solar System is the Hill sphere of the Sun with respect to local stars and the galactic nucleus. In more precise terms, the Hill sphere approximates the gravitational sphere of influence of a smaller body in the face of perturbations from a more massive body.

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