Ciel et Espace is the French periodical in France founded in 1945 and owned by Association française d'astronomie.
According to PR-model, cieletespace.fr is ranked 48,802nd in multilingual Wikipedia, in particular this website is ranked 3,239th in French Wikipedia.
The website is placed before boston.org and after panmacmillan.com.au in the BestRef global ranking of the most important sources of Wikipedia.