HR Diagram Practice

Front

What spectral class does our star, the sun, belong to?

Back

G

Front

What are the three types of galaxies?

Back

Spiral, Elliptical, Irregular

Front

What happens to stars as we move to the left on the HR diagram?

Back

Stars get hotter.

Front

Which type of star is the hottest?

Back

Blue Star.

Front

Which star has the lowest temperature?

Back

Red Star.

Front

What is the main purpose of the HR diagram?

Back

To classify stars based on their luminosity and temperature.

Front

What does the vertical axis of the HR diagram represent?

Back

Luminosity of stars.

Front

What does the horizontal axis of the HR diagram represent?

Back

Temperature of stars.

Front

What color are the coolest stars on the HR diagram?

Back

Red.

Front

What color are the hottest stars on the HR diagram?

Back

Blue.