Christopher C. M. Kyba Andrej Mohar Gašper Pintar Jurij Stare


The lighting of the Church of the Three Kings in Logatec, Slovenia was replaced in 2014. The power of the installation was reduced 96% from 1.6 kW to 58 W, and spill light from the site was effectively eliminated. As a result, the church is no longer visible in nighttime satellite images of the area, indicating a reduction of waste light from the site of at least a factor of 30. This article discusses the concept of sustainability with regards to cultural heritage lighting, within the context of this example.




sustainable lighting, light pollution, remote sensing, church lighting, architectural lighting, VIIRS DNB

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