Journal
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
Volume 139, Issue -, Pages 76-81Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2013.12.011
Keywords
Atmospheric effects; Site testing; Light pollution; Techniques: photometric
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Funding
- Verlust der Nacht - Federal Ministry of Education and Research, Germany, [BMBF-033L038A]
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We analyze the results of 2 years (2011-2012) of night sky photometry performed at the Leibniz Institute for Astrophysics in Potsdam-Babelsberg. This institute is located 23 km to the southwest of the center of Berlin. Our measurements have been performed with a Sky Quality Meter. We find night sky brightness values ranging from 16.5 to 203 mag(SQM) arcsec(-2); the latter value corresponds to 4.8 times the natural zenithal night sky brightness. We focus on the influence of clouds and of the moon on the night sky brightness. It turns out that Potsdam-Babelsberg, despite its proximity to Berlin, still shows a significant correlation of the night sky brightness with the lunar phases. However, the light-pollution-enhancing effect of clouds dominates the night sky brightness by far: overcast nights (up to 16.5 mag(SQM) arcsec-2) are much brighter than clear full moon nights (18-18.5 mag(SQM),arcsec(-2)). (c) 2013 Elsevier Ltd. All rights reserved.
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