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Results and Measurements from 4 Years of Light-Pollution Measurements in Holland ( pdf )

Wim Schmidt (Platform Lichthinder, Nederland)

The presentation will describe work carried out in the last 4 years to get data of the night sky in Holland with the help of digital cameras. Results will be presented of some 1500 measurements of an area covering around 40% of Holland. The results are presented in the form of maps for the local governments. The practical problems associated with using digital cameras for this purpose will be presented, also the correcting measurements I have done to obtain the best possible results using this simple method. The different atmospheric conditions are still a concern and I hope to present some possible solutions.