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SlideshowReport

The Sun as a Blackbody

Description
This graph shows the similarity between the intensity of sunlight and the intensity of radiation from a 5800 K blackbody
over a wide range of wavelengths. Earth’s atmosphere scatters shorter-wavelength photons more than it scatters
longer-wavelength ones. As seen from Earth, this scattering lowers the intensity of sunlight and shifts the blackbody
peak to the right from where it actually occurs. To avoid these effects, the measurements of the Sun’s intensity in this figure were
made in space.
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