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The blue sky spectrum contains light at all visible wavelengths with a broad maximum around 450–485 nm, the wavelengths of the color blue. Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by molecules or particulates in the atmosphere.
The sky isn't just blue by chance. ... The white appearance of sunlight reaching the Earth actually comes to us in all colors of the rainbow, all of which travel in different wavelengths.
The sky actually appears to be blue less than half the time. Some conditions under which the sky may not appear blue: During the night, the sky appears black. Without light from the sun creating Rayleigh scattering, the sky cannot be seen as blue, [3] except in certain conditions when the moon is up. [4] Clouds can obscure the color of the sky.
View of the night sky in July The day's blue sky, clouds and the Moon. The sky is an unobstructed view upward from the surface of the Earth. It includes the atmosphere and outer space. It may also be considered a place between the ground and outer space, thus distinct from outer space.
The Rayleigh sky model describes the observed polarization pattern of the daytime sky. Within the atmosphere, Rayleigh scattering of light by air molecules, water, dust, and aerosols causes the sky's light to have a defined polarization pattern. The same elastic scattering processes cause the sky to be blue.
The world's most favorite color is blue. According to a YouGov poll, pretty much every country on the planet lists it as such. Plus, it's delighted and intrigued scientists and artists (see ...
Rayleigh scattering causes the blue color of the daytime sky and the reddening of the Sun at sunset. Rayleigh scattering (/ ˈ r eɪ l i / RAY-lee) is the scattering or deflection of light, or other electromagnetic radiation, by particles with a size much smaller than the wavelength of the radiation.
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Color "Sky (color)" redirects here. For other uses, see Sky Blue (disambiguation). Sky blue Common connotations boys, daylight, water, air, paleness Colour coordinates Hex triplet #87CEEB sRGB B (r, g, b) (135, 206, 235) HSV (h, s, v) (197°, 43%, 92%) CIELCh uv (L, C, h) (79, 46, 223 ...