Hertzsprung-Russell Diagram

1. The Hertzsprung-Russell diagram is important to astronomy because it was the first diagram to help classify stars, it demonstrates their luminosities and star colors and determine their temperature as well as real brightness.

2. The H-R diagram measures their temperature and real brightness as well as other characteristics by looking at the distances to the stars and upon the type of light emitted.

3. Our sun would be near the main sequences of the H-R diagram.