Classifying Stars

What color are the hottest star?

• Red

• Orange

• Yellow

• Blue

What kinds of stars on the HR diagram are dying?

• Giants

• Main sequence stars

• Dwarfs

• Both giants and dwarfs

Tags

NGSS.HS-ESS1-3

What does the luminosity of a star indicate about its brightness?

• If it's a negative number, it's a bright star

• If it's a positive number, it's a dim star

• Its how many times brighter the star is compared to our sun

What stage of life is OUR SUN in on the HR Diagram?

• Dwarf

• Giant

• Main Sequence

A star that is several thousand times brighter than the Sun with a temperature lower

than 4,000 K would be classified as —

Select TWO correct answers.

Tags

NGSS.HS-ESS1-3

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

• M

• K

• G

• F

A star that is several thousand times brighter than the Sun with a temperature lower

than 4,000 K would be classified as —

Select the group and spectral class. Two correct answers.

Tags

NGSS.HS-ESS1-3

What spectral class is OUR SUN classified on the HR Diagram?

• O

• A

• G

• M

Approximately what is our sun's absolute magnitude?

• 0

• 1

• 4.5

• -4.5

Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?

• Betelguse

• Sirius B

• Procyon B

• Barnard's star

Tags

NGSS.HS-ESS1-3