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 luminosity and temperature of stars.

Front

What factor affects the luminosity of a star?

Back

The size of the star affects its luminosity.

Tags

NGSS.HS-ESS1-1

Front

What is the relationship between a star's surface temperature and its color?

Back

A star's color is determined by its surface temperature; hotter stars appear blue, while cooler stars appear red.

Front

What type of stars are located in the Main Sequence?

Back

Main Sequence stars are categorized into low mass and high mass stars, depending on their size and temperature.

Front

What are White Dwarfs?

Back

White Dwarfs are small, dense stars that are the remnants of low to medium mass stars after they have exhausted their nuclear fuel.

Front

What are Red Supergiants?

Back

Red Supergiants are very large stars that have expanded and cooled, resulting in a reddish appearance and high luminosity.

Front

How does the size of a star affect its luminosity?

Back

Larger stars have greater gravitational pressure, leading to higher temperatures and luminosity compared to smaller stars.

Front

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

Back

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

Tags

NGSS.HS-ESS1-1

Front

How do Red Giants differ from Red Supergiants?

Back

Red Giants are less massive than Red Supergiants and have lower luminosity.

Front

What is the role of temperature in determining a star's position on the HR Diagram?

Back

Temperature determines a star's color and position on the HR Diagram, with hotter stars on the left and cooler stars on the right.