HR Diagrams Practice

Front

What is the Hertzsprung-Russell Diagram?

Back

A graphical representation of stars plotted according to their luminosity and temperature.

Front

What type of star is Betelgeuse classified as?

Back

Cool and Bright Star.

Front

In which region of the H-R Diagram do stars fuse hydrogen to make helium?

Back

The region along the orange dashed line.

Front

What group of stars has lower than average luminosity and higher than average temperature?

Back

White Dwarfs.

Front

What happens to stars as you move to the left on the H-R Diagram?

Back

Stars get hotter.

Front

Which star is considered the coldest?

Back

Red Star.

Front

What is the main sequence in the H-R Diagram?

Back

A continuous band of stars that fuse hydrogen into helium in their cores.

Front

What does luminosity refer to in the context of stars?

Back

The total amount of energy emitted by a star per unit of time.

Front

How does temperature affect a star's color?

Back

Hotter stars appear blue or white, while cooler stars appear red or orange.

Front

What is the significance of the orange dashed line in the H-R Diagram?

Back

It represents the main sequence where stars are in a stable phase of hydrogen fusion.