Was het Donker?

Was het Donker?

Was het Donker? is a citizen science project in the North of the Netherlands where citizens measure sky brightness with a sky quality meters (Unihedron SQM-LU) to monitor light pollution in their living environment.

I created a heatmap that visualizes the monthly sky brightness alongside the moon phase.

You can view all heatmaps for all locations at the Was het Donker website

Hulshorst (my back yard 🏡)

Rijswijk (urban area with numerous greenhouses 🌃)

Vlieland (rural area on sparsely populated island 🌌)