HR Diagram

Front

What is the HR Diagram?

Back

The HR Diagram (Hertzsprung-Russell Diagram) is a scatter plot that shows the relationship between the stars' luminosity and their surface temperature.

Front

What does the X-axis of the HR Diagram represent?

Back

The X-axis of the HR Diagram represents the surface temperature of stars, typically measured in Kelvin.

Front

What does the Y-axis of the HR Diagram measure?

Back

The Y-axis of the HR Diagram measures the luminosity of stars, often expressed in terms of the Sun's luminosity.

Front

What color represents the hottest stars on the HR Diagram?

Back

Blue represents the hottest stars on the HR Diagram.

Front

What type of stars are found in the Main Sequence?

Back

The Main Sequence contains stars that are fusing hydrogen into helium in their cores, including both low mass and high mass stars.

Tags

NGSS.HS-ESS1-1

Front

Where are Red Supergiants located on the HR Diagram?

Back

Red Supergiants are located in the upper right portion of the HR Diagram.

Front

What is the difference between a Red Giant and a Red Supergiant?

Back

Red Giants are less luminous than Red Supergiants and are located lower on the HR Diagram.

Front

What type of stars are White Dwarfs?

Back

White Dwarfs are the remnants of low to medium mass stars that have exhausted their nuclear fuel and are located in the lower left of the HR Diagram.

Front

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

Back

The Main Sequence is significant because it represents the majority of stars in the universe, including our Sun.

Front

How does luminosity change as you move up the Y-axis of the HR Diagram?

Back

As you move up the Y-axis of the HR Diagram, the luminosity of stars increases.