Question

what is the correct order of star colors from hottest to coolest?
white, yellow, red, blue
yellow, orange, white, red
red, orange, yellow, blue - white
blue, white, yellow - white, orange

Explanation:

Star temperature correlates with color via black-body radiation: hotter stars emit shorter-wavelength (bluer) light, while cooler stars emit longer-wavelength (redder) light. The correct descending temperature order of star colors is blue, white, yellow-white, orange, then red. Matching this to the options, only the last choice fits.

Answer:

D. blue, white, yellow-white, orange