HR Diagram

Front

What is the HR Diagram?

Back

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

Front

What type of stars are primarily found on the HR Diagram?

Back

Most stars on the HR Diagram are classified as Main Sequence stars.

Front

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

Back

The X-axis of the HR Diagram measures the temperature of stars, typically in Kelvin.

Front

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

Back

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

Front

What type of star is characterized by high temperature and low luminosity?

Back

White Dwarfs are stars that have high temperatures but low luminosity.

Front

How does the surface temperature of White Dwarfs compare to Red Supergiants?

Back

White Dwarfs have a higher surface temperature than Red Supergiants.

Front

What are Red Supergiants?

Back

Red Supergiants are massive stars that are very luminous and have a cooler surface temperature compared to other types of stars.

Front

What is a Main Sequence star?

Back

A Main Sequence star is a star that is in the stable phase of its life cycle, where it fuses hydrogen into helium in its core.

Front

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

Back

The Main Sequence is the most populated area on the HR Diagram, representing stars in the stable phase of hydrogen burning.

Front

What type of stars are found in the upper right corner of the HR Diagram?

Back

The upper right corner of the HR Diagram is typically occupied by Red Supergiants.