Question

radius of our galaxy; 6 × 1019m ________________

Answer 1

Explanation:

Milky Way/Radius

52,850 light years

Age: 13.51 billion years

Answer 2

Radius of our galaxy is 52,850 light years.

Explanation:

The galaxy in which our solar system is a part of is called the Milky Way galaxy. As the name suggests, the galaxy is seen as a hazy band of light when viewed from Earth, but not by naked eye.

For a long time, we believed that the Milky Way galaxy encompassed all the stars of the universe. But in the 1920, there was a Great Debate between Harlow Shapley and Heber Curtis based on the observations made by Edwin Hubble. Thus astronomers deduced that the Milky Way is one of the many galaxies of the universe.