HR Diagram

Front

What does the Hertzsprung-Russell diagram graph?

Back

The Hertzsprung-Russell diagram graphs stars' luminosity and temperature.

Front

Which category contains the most stars in the HR Diagram?

Back

The Main Sequence category contains the most stars.

Front

What is the characteristic of stars in area D of the HR Diagram?

Back

Stars in area D are dimmer and cooler.

Front

In which category is our Sun located?

Back

Our Sun is located in the Main Sequence category.

Front

What is a galaxy?

Back

A galaxy is a giant structure that contains dust, gases, and hundreds of billions of stars.

Front

What is luminosity in the context of stars?

Back

Luminosity is the total amount of energy emitted by a star per second.

Front

What is the significance of the Main Sequence in the HR Diagram?

Back

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

Front

What are supergiants?

Back

Supergiants are very large and bright stars that are at the end of their life cycle.

Front

What are white dwarfs?

Back

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

Front

What does it mean for a star to be 'hotter'?

Back

A hotter star has a higher surface temperature, which often correlates with a bluer color.