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Solar Spectrum: The source of sunlight

  1. Mar 29, 2012 #1
    What is the source of sunlight? The answer is Solar spectrum. Can anyone explain how the crimson color is created? actually what happen when the sunlight is created? Need help from the expert.
  2. jcsd
  3. Mar 29, 2012 #2


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    Sunlight is thermal radiation from the Sun. The outer areas of the sun are heated to approximately 5,778 kelvin, which is 5,505 celsius, which causes it to give off radiation in a specific spectrum. The very basic idea is that since all matter is composed of charged particles, and since charged particles give off EM radiation when accelerated, the random motions and vibrations of the particles in matter due to heat causes them to emit a spectrum of light. This should explain it: http://en.wikipedia.org/wiki/Thermal_radiation
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