Traditional Culture Encyclopedia - Photography and portraiture - Are those pictures of starry skies, nebulae, and galaxies taken by NASA originally full of colorful colors? Or is it color added by computer through technical means?
Are those pictures of starry skies, nebulae, and galaxies taken by NASA originally full of colorful colors? Or is it color added by computer through technical means?
Some are, some are not. Because visible light is only a very narrow band. Other wave bands include radio, infrared, ultraviolet, x-rays, and gamma rays. Therefore, if only visible light is used for exposure, many details of the celestial body will not be visible. Therefore, most celestial photos, especially photos with many and bright colors, are generally the result of superimposing various wavebands. Invisible light is replaced by specific colors.
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