A. Age
B. Distance from Earth
C. Temperature
D. Size
Submitted by: Areesha Khan
The color of a star corresponds to its surface temperature, with blue stars being the hottest and red stars being cooler.
The color of a star indicates its surface temperature:
Hotter stars: Appear blue or blue-white because they emit most of their energy in the bluer parts of the spectrum
Cooler stars: Appear red because they emit little energy in the blue parts of the spectrum
Warmer stars: Appear orange through yellow
The Colors of the Stars From Hottest to Coldest
The shorter the wavelength of light a star emits, the hotter it is.
The correct answer to the question: "What does the color of a star define?" is "Temperature".
