HR Diagram - NOTES

Multiple Choice

Brady, Anthony, and Karina are on a camping trip. They are sitting around the campfire, gazing at the night sky, trying to identify a group of stars that seem brighter than the others but are actually cooler in temperature. Can you assist them?

• Giants

• Main Sequence

• White Dwarfs

• Supergiants

Multiple Choice

What does the HR Diagram graph?

• Star's brightness and temperature

• Star's distance and size

• Star's age and color

• Star's mass and luminosity

Multiple Choice

In the Hertzsprung – Russell Diagram, where do main sequence stars range from?

• Hot and bright to cool and dim

• Cool and bright to hot and dim

• Hot and dim to cool and bright

• Dim and bright to hot and cool

Multiple Choice

What is the significance of Arcturus in the context of giant stars?

• It is a blue giant star

• It is a red-orange giant star

• It is a white dwarf star

• It is a supergiant star

Multiple Choice

What is the classification of Deneb in the Hertzsprung – Russell Diagram?

• Main Sequence Star

• Red Giant

• Supergiant Star

• White Dwarf

Open Ended

What 4 groups of stars can be located on the HR Diagram?

Open Ended

Identify the color of stars from hottest to coolest.

Labelling

Label the HR Diagram

Drag labels to their correct position on the image

Not Hot and Bright

Hot and Bright

Hot and Not Bright

Not hot and not bright

Multiple Choice

The stars located in the lower left corner of the HR diagram are

• giants

• main sequence

• supergiants

• white dwarf

Multiple Choice

Our sun in the milky way galaxy belongs to the main sequence stars of HR Diagram

• True

• False