Putscheid, Luxembourg – Designated as Luxembourg’s first International Dark Sky Community

Putscheid, Luxembourg 

The Municipality of Putscheid, located in northern Luxembourg within the Our Nature Park, has been officially designated as an International Dark Sky Community by DarkSky International under the name Stärepark Pëtschent (Star Park Putscheid). This recognition confirms Putscheid’s long-standing commitment to protecting the natural night environment through responsible lighting policies, technological innovation, and strong community engagement. The designation marks an important milestone for Luxembourg, as Putscheid becomes the country’s first certified Dark Sky Community.

Nestled in the Ardennes region near the borders of Germany and Belgium, Putscheid covers 27 square kilometers (km²) and is home to 1,176 residents. With elevations ranging from 220 to 550 meters above sea level, the municipality benefits from a rural landscape of forests, valleys, and small villages. Its location within the Our Nature Park, one of Luxembourg’s three designated nature parks, places it in a region dedicated to sustainable development, biodiversity protection, and environmentally responsible tourism.

Despite being situated in one of Europe’s most densely populated regions, Putscheid has remarkably dark skies. Professional night sky quality measurements and continuous monitoring using an All-Sky Camera and a TESS sky sensor confirm zenith brightness values of around 21.2 mag/arcsec² on clear, moonless nights. These measurements demonstrate the effectiveness of local lighting policies and provide a scientific foundation for long-term night sky protection.

The municipality’s cultural and natural heritage further strengthens its commitment to nocturnal preservation. Historic villages such as Stolzembourg, the River Our valley, nearby forests, and regional energy infrastructure — including the Vianden pumped-storage power plant — coexist within a landscape where darkness is increasingly recognized as a valuable natural resource.

Putscheid earned certification by implementing a comprehensive Lighting Management Policy aligned with DarkSky principles. All newly installed municipal luminaires meet strict criteria, including ULR <0.5%, 2200 K color temperature, high efficiency standards, and smart-control compatibility via Zhaga and DALI interfaces. The municipality introduced night-time switch-off between 1:00 a.m. and 4:30 a.m. and implemented adaptive dimming strategies.

A pioneering “Light on Demand” system is currently being deployed across the municipality. Early results show energy savings between 70% and 90% during operational hours, significantly reducing unnecessary illumination while maintaining public safety. Collaboration with national authorities enabled the gradual transition of national road lighting to 2200 K LEDs. Industrial stakeholders, including the regional energy provider SEO, have committed to transitioning toward DarkSky-compliant lighting solutions in the coming years.

“Putscheid demonstrates what can be achieved when a community takes a practical, coordinated approach to managing light. As Luxembourg’s first Dark Sky Place, their work, using switch-off policies and adaptive lighting, shows that meaningful progress is possible with existing infrastructure. Their efforts offer a clear, scalable model for other communities working to reduce light pollution and improve the night environment,” remarked Amber Harrison, Dark Sky Places Program Manager. 

Mayor Fabienne Sinnes-Huberty states:

“Becoming Luxembourg’s first International Dark Sky Community reflects our deep respect for nature and our responsibility toward future generations. Protecting the night sky is not only an environmental objective, it is part of our cultural identity and our vision for sustainable regional development.”​

Daniel Gliedner, Light Consultant of the Our Nature Park, adds:

“Stärepark Pëtschent demonstrates that even in Central Europe, scientifically measurable dark skies can be preserved through consistent policy, technological precision, and public engagement.”

Looking ahead, Putscheid aims to further enhance private lighting awareness campaigns, and continue long-term sky quality monitoring. The municipality also seeks to strengthen astrotourism and environmental education initiatives, positioning the region as a model for climate-conscious and biodiversity-friendly outdoor lighting in Europe.

About the International Dark Sky Places Program: 

Founded in 2001, the International Dark Sky Places Program is a non-regulatory, voluntary program that encourages communities, parks, and protected areas worldwide to preserve and protect dark sites through effective lighting policies, environmentally responsible outdoor lighting, and public education. When used indiscriminately, artificial light can disrupt ecosystems, impact human health, waste money and energy, contribute to climate change, and block our view and connection to the universe. Stärepark Pëtschent now joins more than 270 Places that have demonstrated robust community support for dark sky advocacy and strive to protect the night from light pollution. Learn more by visiting https://darksky.org/what-we-do/international-dark-sky-places/.

About DarkSky International: 

The mission of DarkSky is to preserve and protect the nighttime environment and our heritage of dark skies through environmentally responsible outdoor lighting. Learn more at darksky.org

Contacts

Municipality of Putscheid
7, Veinerstrooss
L-9462 Putscheid, Luxembourg
Tel. +352 28 55 93 200
[email protected]

Amber Harrison
Dark Sky Places Program Manager, DarkSky International
520-347-6363
[email protected]