* Blackbody Radiation: Stars emit light across a wide range of wavelengths, and the peak wavelength of this radiation depends on the star's temperature. This is known as blackbody radiation.
* Wien's Displacement Law: This law states that the peak wavelength of blackbody radiation is inversely proportional to the temperature. So, hotter stars emit more of their light at shorter wavelengths (like blue and violet), while cooler stars emit more of their light at longer wavelengths (like red and orange).
In summary:
* Blue stars: Hottest
* White stars: Moderately hot
* Yellow stars: Moderately cool
* Orange stars: Cooler
* Red stars: Coolest
Keep in mind that this is a simplification. There are other factors that can affect a star's color, such as its composition and distance from Earth. However, red color is a good indicator of a relatively cool star.
