Our Star-The Sun main content.

Our Star-The Sun

A circular exhibit table in the Cullman Hall of the Universe that features information about the Sun. AMNH/D. Finnin

Exhibition Text

Our Sun is an ordinary star, just one among hundreds of billions of stars in the Milky Way Galaxy. As the only star we can observe in detail, it provides a basis for our understanding of all stars. The Sun is composed almost entirely of hydrogen and helium gas. Multimillion-degree temperatures in its dense core sustain nuclear fusion, providing the energy source for sunlight. The surface of the Sun is marked by colossal magnetic storms. The Sun’s gravity holds in orbit a family of planets, moons, asteroids, and comets - the solar system.

For Educators

Topic: Astronomy

Subtopic: The Sun

Keywords: Astrophysics, Sun, Solar system, Hydrogen, Nuclear fusion, Helium

Audience: General