Question

Sun is at a mean distance of about 27, 000 light years from the centre of the Milky way

galaxy and complete one revolution about the galactic centre in about 225 million years. What is the
linear speed of Sun ?​

Answer 1

Explanation:

The disk of stars in the Milky Way is about 100,000 light years across and the sun is located about 30,000 light years from the galaxy's center. Based on a distance of 30,000 light years and a speed of 220 km/s, the Sun's orbit around the center of the Milky Way once every 225 million years.

Answer 2

Yes, the Sun - in fact, our whole solar system - orbits around the center of the Milky Way Galaxy. We are moving at an average velocity of 828,000 km/hr. But even at that high rate, it still takes us about 230 million years to make one complete orbit around the Milky Way!