From Earth, it is on average 1 AU ( 1.496 ×10 8 km) or about 8 light-minutes away.
The Sun moves around the Galactic Center of the Milky Way, at a distance of 26,660 light-years. Part of this internal energy is emitted from its surface as light, ultraviolet, and infrared radiation, providing most of the energy for life on Earth. It is a massive, hot ball of plasma, inflated and heated by energy produced by nuclear fusion reactions at its core. The Sun is the star at the center of the Solar System. ≈ 370 km/s (relative to the cosmic microwave background) ≈ 20 km/s (relative to average velocity of other stars in stellar neighborhood) ≈ 251 km/s (orbit around the center of the Milky Way) Sun, Sol ( / ˈ s ɒ l/), Sól, Helios ( / ˈ h iː l i ə s/) A solar filter dimmed true-color image of the visible photosphere of the Sun
