File:Bortle scale 3.jpg
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| Description |
English: John Bortle created a light pollution scale (Bortle Dark-Sky Scale) for the February 2001 edition of Sky and Telescope Magazine, and used (her for Example) to characterize the quality of the nighttime environment in terms of presence / absence of light pollution
Français : Exemple d'utilisation de l'échelle de Bortle, utilisée pour caractériser la qualité de l'environnement nocturne du point de vue de la présence/absence de pollution lumineuse |
| Date | |
| Source | Own work |
| Author | Lamiot |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 09:52, 8 December 2010 | | 972 × 198 (68 KB) | Lamiot (talk | contribs) | {{Information |Description={{en|1=John Bortle created a light pollution scale (Bortle Dark-Sky Scale) for the February 2001 edition of Sky and Telescope Magazine, and used (her for Example) to characterize the quality of th |
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