Atmospheric extinction
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| definition | The decrease in the intensity of light from a celestial body due to absorption and scattering by Earth's atmosphere. It increases from the zenith to the horizon and affects short wavelengths more than long wavelengths, so that objects near the horizon appear redder than they do at the zenith. | ||||||
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| scope note | Refers to earth atmosphere | ||||||
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| contributor | AAS_Frey.Katie original | ||||||