Here's why:
* Blackbody Radiation: The Sun, like all stars, behaves like a blackbody radiator. This means it emits radiation across a range of wavelengths, with the peak intensity determined by its temperature.
* Wien's Displacement Law: This law states that the wavelength at which the maximum intensity of blackbody radiation occurs is inversely proportional to the temperature of the object. The Sun's surface temperature is around 5,500 degrees Celsius, which corresponds to a peak intensity in the visible light region, specifically around 500 nanometers (green light).
While the Sun emits radiation across the entire electromagnetic spectrum, from radio waves to gamma rays, visible light carries the highest energy output.
