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25 years after the term “light pollution” was coined, we still have a hard time understanding what it is. Measuring it is difficult and metrics to describe it are still being developed. Innovative techniques like all-sky imaging and high dynamic range photography are finally making it possible to accurately measure night sky brightness and glare. International Space Station and satellite imagery is also being used to measure global sky brightness and document trends in its proliferation. This session will demonstrate how to measure different aspects of light pollution and examine the metrics that have been developed to quantify it.
Presented by: Bob Parks
Smart Outdoor Lighting Alliance