HR Diagram

Front

What is the H-R Diagram?

Back

The Hertzsprung-Russell (H-R) Diagram is a scatter plot of stars showing the relationship between their absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Front

What category contains the most stars in the H-R Diagram?

Back

Main Sequence.

Front

What is a star?

Back

A large celestial body composed of gas that emits light.

Front

Which star is cool, dim, and red according to the H-R Diagram?

Back

Barnard's star.

Front

In which category is our Sun located?

Back

Main Sequence.

Front

What spectral class does the Sun belong to?

Back

G.

Front

What are Supergiants?

Back

Supergiants are very large stars that are much brighter than the Sun and have a high luminosity.

Front

What are White Dwarfs?

Back

White Dwarfs are small, dense stars that are the remnants of stars that have exhausted their nuclear fuel.

Front

What is the significance of the Main Sequence in the H-R Diagram?

Back

The Main Sequence is where stars spend most of their lives, fusing hydrogen into helium in their cores.

Front

What does the temperature of a star affect?

Back

The temperature affects the color and brightness of the star.