HR-Diagram

Front

What does the HR diagram represent?

Back

The HR diagram (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.

Front

What color is Zeta Eridani according to the HR diagram?

Back

Blue

Front

Knowing the color of a star also tells us its __________.

Back

Temperature

Front

Which category contains the most stars in the HR diagram?

Back

Main Sequence

Front

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

Back

Stars get hotter.

Front

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

Back

G

Front

What is the significance of a star's temperature in the HR diagram?

Back

A star's temperature determines its color and position on the HR diagram.

Front

What are the main categories of stars represented in the HR diagram?

Back

Main Sequence, Giants, Supergiants, and White Dwarfs.

Front

What does a star's luminosity indicate in the HR diagram?

Back

Luminosity indicates the total amount of energy a star emits per second.

Front

How does the HR diagram help in understanding stellar evolution?

Back

The HR diagram shows how stars change over time, including their life stages from birth to death.