The source of sunlight is the solar spectrum, which is thermal radiation emitted by the Sun. The Sun's outer layers reach temperatures around 5,778 Kelvin (5,505 Celsius), resulting in the emission of electromagnetic radiation across a specific spectrum. The crimson color observed in sunlight is a result of the thermal radiation produced by the random motions and vibrations of charged particles within the Sun, which emit light when accelerated. This phenomenon is fundamentally explained by the principles of thermal radiation.
PREREQUISITESStudents of physics, educators in the field of astronomy, and anyone interested in understanding the fundamental principles of sunlight and thermal radiation.