* Blackbody Radiation: Stars radiate energy like a perfect blackbody. The color of this radiation depends on the star's temperature.
* Wien's Displacement Law: This law states that the peak wavelength of radiation emitted by a blackbody is inversely proportional to its temperature. Hotter stars emit more of their light at shorter wavelengths, which correspond to blue and white colors.
* Temperature and Color:
* Very hot stars (over 30,000 K) appear blue.
* Moderately hot stars (around 10,000 K) appear white.
* Cooler stars (like our Sun, around 5,500 K) appear yellow.
* Even cooler stars appear orange or red.
So, the blue-white color of hot stars is a direct result of their high surface temperatures.