How does modern astronomy refine Copernicus's concept of the Sun's position in the universe?

Answer

The Sun is one star in the Milky Way galaxy, moving around the galaxy's center

While Copernicus dethroned Earth, modern astronomy clarifies that the Sun is merely one star within the Milky Way, and the entire solar system is moving around the galaxy's center.

How does modern astronomy refine Copernicus's concept of the Sun's position in the universe?
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