Difference between revisions of "Twilight"

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*[http://en.wikipedia.org/wiki/15th_century 15th Century]
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*[https://en.wikipedia.org/wiki/15th_century 15th Century]
 
==Definitions==
 
==Definitions==
 
*1: the [[light]] from the [[sky]] between full [[night]] and [[sunrise]] or between sunset and full night produced by [[diffusion]] of sunlight through the [[atmosphere]] and its dust; also : a time of twilight
 
*1: the [[light]] from the [[sky]] between full [[night]] and [[sunrise]] or between sunset and full night produced by [[diffusion]] of sunlight through the [[atmosphere]] and its dust; also : a time of twilight
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'''Twilight''' is the time between [[dawn]] and sunrise, and between [[sunset]] and [[dusk]]. Sunlight scattered in the upper [[atmosphere]] [[illuminates]] the lower atmosphere, and the [[surface]] of the [[Earth]] is neither completely lit nor completely dark. The [[sun]] itself is not actually visible because it is below the [[horizon]]. Owing to the unusual [[quality]] of the ambient light at this time, twilight has long been popular with photographers and painters, who refer to it as the "blue hour", after the French [[expression]] l'heure bleue. Twilight is [[technically]] defined as the period before sunrise and after sunset during which there is [[natural]] [[light]] provided by the upper [[atmosphere]], which receives direct sunlight and scatters part of it towards the [[Earth]]'s [[surface]].
 
'''Twilight''' is the time between [[dawn]] and sunrise, and between [[sunset]] and [[dusk]]. Sunlight scattered in the upper [[atmosphere]] [[illuminates]] the lower atmosphere, and the [[surface]] of the [[Earth]] is neither completely lit nor completely dark. The [[sun]] itself is not actually visible because it is below the [[horizon]]. Owing to the unusual [[quality]] of the ambient light at this time, twilight has long been popular with photographers and painters, who refer to it as the "blue hour", after the French [[expression]] l'heure bleue. Twilight is [[technically]] defined as the period before sunrise and after sunset during which there is [[natural]] [[light]] provided by the upper [[atmosphere]], which receives direct sunlight and scatters part of it towards the [[Earth]]'s [[surface]].
  
Twilight is [[sacred]] in [http://en.wikipedia.org/wiki/Hinduism Hinduism]. It is called गोधूळिवेळ in [http://en.wikipedia.org/wiki/Marathi_language Marathi] or गोधूलिवेला godhūlivelā in [http://en.wikipedia.org/wiki/Hindi_language Hindi] — [[literally]] "cow dust time". Many rituals including [http://en.wikipedia.org/wiki/Sandhyavandanam Sandhyavandanam] and [http://en.wikipedia.org/wiki/Puja_(Hinduism) Pooja] are [[performed]] at twilight. Hindus believe that this time is [[ideal]] for [[study]] and [[education]].[http://en.wikipedia.org/wiki/Twilight]
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Twilight is [[sacred]] in [https://en.wikipedia.org/wiki/Hinduism Hinduism]. It is called गोधूळिवेळ in [https://en.wikipedia.org/wiki/Marathi_language Marathi] or गोधूलिवेला godhūlivelā in [https://en.wikipedia.org/wiki/Hindi_language Hindi] — [[literally]] "cow dust time". Many rituals including [https://en.wikipedia.org/wiki/Sandhyavandanam Sandhyavandanam] and [https://en.wikipedia.org/wiki/Puja_(Hinduism) Pooja] are [[performed]] at twilight. Hindus believe that this time is [[ideal]] for [[study]] and [[education]].[https://en.wikipedia.org/wiki/Twilight]
  
 
[[Category: Earth Science]]
 
[[Category: Earth Science]]

Latest revision as of 02:44, 13 December 2020

Lighterstill.jpg

Linthal twilight.jpg

Definitions

  • 1: the light from the sky between full night and sunrise or between sunset and full night produced by diffusion of sunlight through the atmosphere and its dust; also : a time of twilight
  • 2a : an intermediate state that is not clearly defined <lived in the twilight of neutrality — Newsweek>
b : a period of decline <the twilight of a great career>

Description

Twilight is the time between dawn and sunrise, and between sunset and dusk. Sunlight scattered in the upper atmosphere illuminates the lower atmosphere, and the surface of the Earth is neither completely lit nor completely dark. The sun itself is not actually visible because it is below the horizon. Owing to the unusual quality of the ambient light at this time, twilight has long been popular with photographers and painters, who refer to it as the "blue hour", after the French expression l'heure bleue. Twilight is technically defined as the period before sunrise and after sunset during which there is natural light provided by the upper atmosphere, which receives direct sunlight and scatters part of it towards the Earth's surface.

Twilight is sacred in Hinduism. It is called गोधूळिवेळ in Marathi or गोधूलिवेला godhūlivelā in Hindiliterally "cow dust time". Many rituals including Sandhyavandanam and Pooja are performed at twilight. Hindus believe that this time is ideal for study and education.[1]