HR-Diagram

Front

What category is our Sun located in?

Back

Main Sequence

Front

How does the mass of a hot, bright main sequence star compare to a cool, faint main sequence star?

Back

They have more mass.

Front

As you move from the bottom to the top of the H-R diagram, what changes?

Back

Luminosity or Brightness.

Front

Knowing the color of a star also tells us its what?

Back

Temperature.

Front

Which star is considered a giant star?

Back

Mira.

Front

What is the H-R diagram used for?

Back

To classify stars based on their luminosity, temperature, and evolutionary stage.

Front

What does a star's color indicate?

Back

The temperature of the star.

Front

What are the two main axes of the H-R diagram?

Back

Temperature (horizontal axis) and Luminosity (vertical axis).

Front

What type of star is Betelgeuse?

Back

A red supergiant star.

Front

What happens to a star's brightness as it evolves?

Back

It generally increases as it moves off the main sequence.