The Irish Astronomical Society, the oldest astronomy club in Ireland, was founded in D'Olier Street, Dublin on 5 October 1937. The society holds public stargazing events to raise interest in astronomy. Some members bring their telescopes to these events and have been nicknamed Dublin Sidewalk Astronomers. It is also one of the founding organisations of the Irish Federation of Astronomical Societies. Most members are amateur astronomers, with some professionals. Source: Wikipedia (en)