Front

What does area D on the HR Diagram represent?

Back

Area D represents stars that are dimmer and cooler.

Front

Which star is considered average in luminosity, temperature, and magnitude?

Back

The Sun.

Front

What color are the coolest stars?

Back

Red.

Front

What happens to stars as you move to the left on the HR Diagram?

Back

Stars get hotter.

Front

What color are the hottest stars?

Back

Blue.

Front

What is the HR Diagram used for?

Back

The HR Diagram is used to classify stars based on their luminosity and temperature.

Front

What are the two main axes of the HR Diagram?

Back

The vertical axis represents luminosity, and the horizontal axis represents temperature.

Front

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

Back

Hot, bright stars.

Front

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

Back

Cool, dim stars.

Front

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

Back

Hotter stars appear blue, while cooler stars appear red.