Three pages written just after the September 2016 Artificial Light at Night conference for Nuovo Orione, one of the two reference magazines for amateur astronomers. The article was eventually published just in May, and some of the presented issues have been developed, but the article still has its points of interest.

This article makes a good pair with the other one I published on “the January issue of Le Stelle”. The latter was actually written after the article published in May, and it approaches the issue of light pollution from a slightly different angle.