colors
red stars?
coolest stars
5,792º F
red
small stars
white dwarfs
stars are 75% what?
Hydrogen
blue stars?
hottest stars
9,932º F
medium stars
stars are 2% what?
other elements
yellow stars
medium temperature
36,032º F
blue
large star
spica
stars are 25% what?
Helium
white stars?
medium-high temperature
14,432º F
supergiant star
Betelgeuse
why do astronomers use spectrums?
To identify a stars chemical composition