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how fast is the sun orbiting the center of the milky way? the revolution period is...

how fast is the sun orbiting the center of the milky way? the revolution period is 230 million years. assume that the sun is 2/3 of the distance towards the edge of the milky way and the milky way is a galaxy of a typical size of a 100000 light years across. answer in Km/. speed of light is 300000 km/s

Solutions

Expert Solution

Given

Revolution period of the Sun

The diameter of the milky way

Therefore radius of the milky way is

In kilometers

Now, the radius of the orbit of the sun is

The circumference of the orbit of the sun is

So, the speed of the sun around the center of the milky way is therefore

The speed of the sun is approximately 273.48 km/s.

genius_generous answered 1 year ago
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