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How old would a 56 year old man be on Jupiter?
That person would be about four and a half years old. Earth has an orbital period of around 365.2 years, which is the number of Earth days it takes to orbit the sun. Jupiter has an orbital period of 4331 earth days. 56 years on earth is 20,451 days which means that a person living on Jupiter for 20,451 days would be around four and a half years old.