The Observatoire Centre Ardenne is a public astronomical observatory located in Grapfontaine in Belgium, in the Province of Luxembourg. The only public, general and permanent observatory in Wallonia, it has 6 domes, including 1 for people with reduced mobility, and one of the most powerful telescopes in Belgium.
The association organises numerous activities in the French-speaking and German-speaking regions of the country and on the coast, covering discovery, training and management. Thousands of members participate and get involved in more than 60 sections to constantly renew this movement of lifelong learning.