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Who is our nearest planetary neighbor, on average?

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16 2 $begingroup$ Assume that the planets have circular orbits centered on the sun. Assume that the radius of the orbits is 0.39, 0.723, 1, and 1.524 for Mercury, Venus, Earth, and Mars. Assume also that there are no resonances, in other words, that for a given position of planet A planet B will be in every other position over a long period of time. What is the closest planet to Earth on average? mathematics physics share | improve this question edited 12 mins ago smci 352 2 9 asked yesterday ...