Here's why:
* Blackbody Radiation: Stars emit radiation like a blackbody, meaning they radiate at all wavelengths, but the peak of their emission corresponds to a specific wavelength.
* Wien's Displacement Law: This law states that the peak wavelength of a blackbody's radiation is inversely proportional to its temperature. This means hotter stars emit more of their light at shorter wavelengths (blue and white), while cooler stars emit more at longer wavelengths (red and orange).
In summary:
* Blue/White stars: Hottest
* Yellow stars: Medium temperature
* Red/Orange stars: Coolest
