HR diagram

What is the HR diagram

• A chart that tells color of stars

• A chart that graphs temperature

• A chart that graphs a star’s brightness and temperature

• A cookbook

List the color of the stars from hottest to coldest

• blue, white, yellow, orange, red

• orange, yellow, blue, red, white

• green, pink, purple, white

• there is no order

What type of star has a high temperature but a low luminosity?

• blue giant

• super giant

• red super giant

• white dwarf

What factor affects the color of a star?

• size

• temperature

• mass

• brightness

What color is a star with the lowest surface temperature

• blue

• red

• yellow

• orange

What type of star has a high temperature and a high luminosity?

• white dwarf

• sun

• red giant

• blue giant

What type of star has a low temperature but a high luminosity?

• red giant

• red super giant

• white dwarf

• blue giant

What type of star has a low temperature and a low luminosity?

• sun

• blue giant

• white dwarf

• red giant

What is the color of the stars with the highest surface temperature?

• white

• blue

• red

• green

What factor affects the color of a star?

• brightness

• mass

• nothing

• temperature