Definitions for skyglow
sky·glow

WiktionaryRate this definition:0.0 / 0 votes

1. skyglownoun

   The illumination of the sky above populated areas, mostly by street lighting

WikipediaRate this definition:0.0 / 0 votes

1. Skyglow

   Skyglow (or sky glow) is the diffuse luminance of the night sky, apart from discrete light sources such as the Moon and visible individual stars. It is a commonly noticed aspect of light pollution. While usually referring to luminance arising from artificial lighting, skyglow may also involve any scattered light seen at night, including natural ones like starlight, zodiacal light, and airglow.In the context of light pollution, skyglow arises from the use of artificial light sources, including electrical (or rarely gas) lighting used for illumination and advertisement and from gas flares. Light propagating into the atmosphere directly from upward-directed or incompletely shielded sources, or after reflection from the ground or other surfaces, is partially scattered back toward the ground, producing a diffuse glow that is visible from great distances. Skyglow from artificial lights is most often noticed as a glowing dome of light over cities and towns, yet is pervasive throughout the developed world.

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1. Skyglow

   Skyglow is the illumination of the night sky or parts of it. The most common cause of skyglow is artificial light that emits light pollution, which accumulates into a vast glow that can be seen from miles away and from high in the sky. Skyglow from artificial lights is common throughout the world and can be observed over most cities and towns as a glowing dome of the populated area. Skyglow's light domes can be large, as in that over a city, or small, as in that over an over-illuminated shopping center or a stadium. Although often referring to artificial light, skyglow also includes natural sources of diffuse nighttime light like the zodiacal light, starlight, and airglow emitted high in the upper atmosphere.: Skyglow can also be caused by natural occurrences, such as the 1908 Tunguska event, in which a meteoroid spanning a few meters in mean radius exploded 5–10 kilometers above the Podkamennaya Tunguska River in the Krasnoyarsk Krai region of Russia. The explosion is estimated to have had released more or less 15 megatons of energy, which is around 1,000 times as powerful as the atomic bomb that exploded over Hiroshima, Japan in 1945 and about one third as powerful as the thermonuclear bomb Tsar Bomba, the most powerful nuclear bomb ever detonated. The light emitted from the Tunguska explosion was so great that it created skyglow as far away as England, where the population experienced a number of weeks of intermittent "bright nights".

How to pronounce skyglow?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say skyglow in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of skyglow in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of skyglow in Pythagorean Numerology is: 4

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Skyglow
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Skyglow
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=skyglow