Light Pollution Presentation July 18

Contributed by Idaho Dark Sky Alliance

UCLA researchers are back in Idaho for a third year of collecting and analyzing ground-based measurements of light pollution at designated sites within the CIDSR. These measurements will be combined with remote analyses to establish a baseline dataset to track light pollution trends in the reserve. Night sky measurements were gathered and analyzed in 2021 and 2022 and similar measurements will be gathered this summer, using the Sky Quality Camera hardware and software system to measure whole-sky brightness and attribute light pollution sources.

As part of the project there will be a presentation at 10 a.m. on Tuesday July 18, at Ketchum City Hall (191 5th St, Ketchum). It will also be available via Zoom. The researchers will discuss the impacts of light pollution, describe the process for taking ground measurements using a Sky Quality Meter and Sky Quality Camera, and explain how the results are analyzed. They will also provide an overview of how these tools are utilized to monitor light pollution.

In a related effort, the researchers will also provide a more detailed and hands-on demonstration of the camera and light meters for interested volunteers on at 9 p.m. on Monday, July 17, at Ketchum Town Square.

If you would like to learn more about or sign up to help with this citizen science project, please send a text to 208-352-3153 or email

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