Could you answer part 1 and 2 of the question, thank you! 5. Consider now another binary star example. If our Sun had another starof identical size and mass orbiting it in the orbit of the Earth (in otherwords, the semi-major axis of its orbit is 1AU), what would be the periodof their orbit?Why is this period (greater than) / (equal to) / (less than) the period of 1year which is the period of the Earth's orbit?

If the distance between the starts is in Astronomical unit (A.U) and time is in years than Kepler's…

Answered: 5. Consider now another binary star…

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