Halley’s comet revolves around the Sun with a period of 76 years. Neptune has an orbital period of 164.8 years. Which of them is farther from the Sun at the aphelion point of its orbit?
a Halley = 17.8 a. That is, q = 0.59 a. That is, it moves away from the Sun by 2 * 17.8 * 0.59 = 35.01 a. e .; a Neptune = 30 amu. e. Farther from the Sun at aphelion.
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