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- Solar radiation is created by nuclear fusion reactions in the sun's core, which causes it to emit a large amount of electromagnetic radiation, mostly in the form of visible light.
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Energy from the Sun reaches Earth in several different forms. Some of the energy is in the form of visible light we can see, and other energy wavelengths, such as infrared, and small amounts of ultraviolet radiation, x-rays, and gamma rays, that we can’t see.
The majority of the Sun’s radiation reaching Earth is in the form of visible light we can see and invisible infrared energy that we can’t see. A smaller portion of sunlight is made up of ultraviolet radiation, which is also invisible to our eyes.
Most of the light emitted by the sun is characteristic of a blackbody radiator at this temperature. The spectrum of the sun's light is also affected by the passage of that light through the solar atmosphere, where ions, atoms, and molecules absorb light in very narrow wavelength bands.
Aug 23, 2023 · The energy is emitted in various forms of light: ultraviolet light, X-rays, visible light, infrared, microwaves and radio waves. The sun also emits energized particles (neutrinos, protons) that make up the solar wind .
It is important to know that the Sun is not a Lambertian radiator (a circular disk of evenly emitted light). The Sun is not spherical but is instead described variously as a flattened disk, a quadrupole or a hexadecapole shape.
The Sun gives off light that has even more energy than purple. One type of this light is called ultraviolet (UV) and it can give you a sunburn. Another type of light with a lot of energy are X-rays, just like you get when you go to the dentist.
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Feb 2, 2024 · Photons are the smallest particle of light and other forms of electromagnetic radiation. Neutrinos are more difficult to detect, and only account for about two percent of the sun’s total energy. The sun emits both photons and neutrinos in all directions, all the time.
