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Sun's Bobble Motion I. The Sun does not stay in the same plane as it orbits the center of the Milky Way Galaxy. It bobbles up and down like the...
Sun's Bobble Motion I. The Sun does not stay in the same plane as it orbits the center of the Milky Way Galaxy. It bobbles up and down like the motion of a horse on a carousel. Current observations indicate that the sun orbits the center of our galaxy at about 240 km/s. How long would the Sun take to bobble one period? Assume the Sun does not exceed 500 pc above and below the galaxy midplane. (Hint: One period is the time it takes the Sun to travel through the thickness of the disk twice.) Assume the Sun passes vertically through the disk. (Note that 1 pc = 3.1 × 1013 km.) Express your answer in millions of years.
