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File:How light pollution affects the dark night skies (dark-skies).jpg

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Summary

Description
English: This image illustrates the Bortle scale, which measures the impact of light pollution on the dark skies at a given location. It shows, from left to right, the increase in the number of stars and night-sky objects visible in excellent dark sky conditions compared with cities. The illustration is a modification of an original photograph taken at ESO's Paranal Observatory in Chile, a place with excellent dark-sky conditions, perfect for astronomy.
Date 29 June 2022, 08:52 (upload date)
Source
This media was produced by the European Southern Observatory (ESO), under the identifier dark-skies

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Author ESO/P. Horálek, M. Wallner
Other versions
Image extraction processThis file has an extracted image: How light pollution affects the dark night skies (dark-skies) (flipped left-right).jpg.
lang=en
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Captions

This image illustrates the Bortle scale, which measures the impact of light pollution on the dark skies at a given location.

Items portrayed in this file

depicts

media type

image/jpeg

height

4,500 pixel

width

8,000 pixel

checksum

0e43f04b7634c0bf838adc3fce4647cd35fe8e9f

determination method: SHA-1

inception

29 June 2022

pHash checksum

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determination method: JImagehash perceptual hash

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Date/TimeThumbnailDimensionsUserComment
current17:01, 29 July 2023Thumbnail for version as of 17:01, 29 July 20238,000 × 4,500 (7.07 MB)OptimusPrimeBot#Spacemedia - Upload of https://cdn.eso.org/images/large/dark-skies.jpg via Commons:Spacemedia
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