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The number of stars visible to the naked eye has decreased significantly – astronomers explain why

  • January 20, 2023
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In the last decade, the number of stars in the sky that humans can see with the naked eye has decreased significantly. As reported by Ukrinform, the BBC

In the last decade, the number of stars in the sky that humans can see with the naked eye has decreased significantly.

As reported by Ukrinform, the BBC reported it.

Scientist from the German Geosciences Research Center in Potsdam, Dr. “Our ability to see the stars in the sky is diminishing,” said Christopher Kiba.

The reason for this phenomenon is the light pollution of the sky caused by artificial lighting, since the brightness of this lighting has been increasing every year since 2011.

This is the summary of 12 years of research by amateur astronomers and citizen scientists who went out at night to count the stars.

The change in star visibility reported by people who posted star count data to an online project called the Globe at Night was said to be equivalent to an annual increase in sky brightness of about 10%.

This means that a child born in a region where 250 stars are visible will likely see fewer than 100 stars in the same location 18 years from now.

“People looking at nighttime images and videos of the Earth from the International Space Station are often fascinated by the ‘beauty’ of city lights, which resemble lights on a Christmas tree. They do not perceive this image as pollution. Light pollution researcher Fabio Falci is amazed by the beauty of the rainbow colors created by gasoline in water and its chemical It’s like not realizing there’s pollution,” he said.

Light pollution is a type of physical pollution, a violation of brightness and a temporary shift in the natural illumination of a given area under the influence of artificial light sources that cause deviations in the life of plants and animals. Such areas include greenhouse crops, railway junctions, stadiums, etc.

Source: Ukrinform

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