Brightness of the night, cloudless sky within the administrative boundaries of Cracow according the measurements done in 2009, on a base of the model map from 1997

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[Credit: Ściężor T. Light pollution of the night sky in Cracow Agglomeration. Data analysis of the artificial sky glow measurements (in Polish), Kraków 2010, on the base of the map: P. Cinzano, F. Falchi (University of Padova), C. D. Elvidge (NOAA National Geophysical Data Center, Boulder). Copyright Royal Astronomical Society. Reproduced from the Monthly Notices of the RAS by permission of Blackwell Science.]

The range of the light island of Krakow measured in different geographical directions


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[Credit: Ściężor T. Light pollution of the night sky in Cracow Agglomeration. Data analysis of the artificial sky glow measurements (in Polish), Kraków 2010]

A model map of the night sky glowing in the vicinity of Krakow (1997) and the boundary of the light island of Krakow determined in 2009


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[Credit: Ściężor T. Light pollution of the night sky in Cracow Agglomeration. Data analysis of the artificial sky glow measurements (in Polish), , Kraków 2010, on the base of the map: P. Cinzano, F. Falchi (University of Padova), C. D. Elvidge (NOAA National Geophysical Data Center, Boulder). Copyright Royal Astronomical Society. Reproduced from the Monthly Notices of the RAS by permission of Blackwell Science.]