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