light pollution


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Related to light pollution: Visual pollution

light pollution

One of the factors setting a limit on the faintness of stars that may be seen, photographed, or observed or recorded by telescope. Light pollution is an excessive amount of background light mostly arising from human activities and includes street and domestic lighting, lighting of public buildings, factories, and offices, and lighting of entertainment and sports facilities used at night. Not all light pollution is of human origin, however. On a moonless night there are still three natural sources, of roughly equal contribution; these are airglow and other atmospheric effects, the zodiacal light arising from the scattering of sunlight by Solar-System dust, and the background light of our Galaxy. See also seeing.

Light pollution

The wasted light from building and landscape designs that produces glare, is directed upward to the sky, or is directed off the site.
References in periodicals archive ?
Al Sheithani said that besides capacity building, the satellite would help spot where light pollution was especially intense in the Sultanate of Oman.
He added, 'Due to rapid growth of cities and road infrastructure, we have been witnessing increasing instances of light pollution across the world.
Light pollution profoundly affects day to day activities.
While scientists had expected to see more light pollution in expanding emerging economies, they had thought less-polluting LEDs and better use of technology to turn off unused lights might have meant decreased levels in developed countries, but this was not the case.
Ecologist Franz HAaAaAeAe[micro]lker of Germany's Leibniz-Institute for Freshwat Ecology and Inland Fisheries (IGB) said light pollution has ecological consequences, with natural light cycles disrupted by artificial light introduced into the night time environment.
Since I'm not willing to surrender two weeks of deep-sky imaging to the Moon every month, and light pollution is all around me, I've developed a few strategies to keep the shutter open even under less-than-ideal conditions.
The International Dark-Sky Association is the authoritative voice on light pollution.
Northumberland also came out on top in the county category with the highest percentage of night skies free of light pollution at 72%.
Artificial light scattered in the atmosphere raises night sky luminance, creating the most visible negative effect of light pollution - artificial skyglow," the study stated.
In Singapore - the country with the most light pollution in the world - the skies never go dark, the authors write.
Light pollution can limit the military's ability to conduct crucial nighttime training at bases around the country.
Light pollution is at an all-time high and growing worse by the minute precisely because of people lighting the night like never before.