Halley's comet orbits the Sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach

Question

Halley's comet orbits the Sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach (Fig. 5-45). Estimate the greatest distance of the comet from the Sun. Is it still "in" the solar system? What planet's orbit is nearest when it is out there?

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