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' absolute magnitudes or luminosities versus their stellar classifications or effective temperatures.

Tags

NGSS.HS-ESS1-3

Front

Where is our Sun located on the HR-Diagram?

Back

The Sun is located in the Main Sequence category of the HR-Diagram.

Front

What happens to luminosity as you move from the bottom to the top of the HR-Diagram?

Back

As you move from the bottom to the top of the HR-Diagram, the luminosity or brightness of stars increases.

Front

Which type of star is the coldest?

Back

The coldest type of star is a Red Star.

Front

What is a giant star?

Back

A giant star is a star that has expanded and cooled, typically found in the upper right area of the HR-Diagram.

Front

Which star is considered a giant star?

Back

Mira is considered a giant star.

Front

Are giants hotter than white dwarfs?

Back

False, giants are not considered hotter than white dwarfs.

Front

What is a white dwarf?

Back

A white dwarf is a small, dense star that is the remnant of a low to medium mass star after it has exhausted its nuclear fuel.

Tags

NGSS.HS-ESS1-3

Front

What is the relationship between temperature and color of stars?

Back

The color of a star is related to its temperature; hotter stars appear blue, while cooler stars appear red.

Front

What is the significance of the Main Sequence on 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