| Informations about light pollution and the protection of the night environment in the European Union by Pierantonio Cinzano. | |
| Keywords : Light pollution, inquinamento luminoso, night sky brightness, Europe, Europa, night sky brightness, save the sky, sky glow, satellite, DMSP, nightime lights, earth, nocturnal, enviroment, map, Atlas, World, photometry, radiometry, measurements, limiting magnitude, lighting, |
| Last Update : | 29/December/2011 |
| Google PR : | 4 |
| Internal links : | 9 |
| External links : | 1 |
| Archive : | Check how did the site look in the past? |