The British Astronomical Association (BAA) is one of the world’s leading organisations for amateur astronomy, founded in 1890 to support and encourage the study of astronomy by enthusiasts of all levels. Based in the United Kingdom, the Association brings together observers, researchers, and educators who contribute valuable observations of the Sun, Moon, planets, comets, variable stars, and other celestial phenomena. Through its specialist observing sections, publications, meetings, lectures, and outreach activities, the BAA provides opportunities for members to develop their skills, collaborate on scientific projects, and contribute to astronomical knowledge. The Association has a long history of supporting citizen science and remains an important bridge between amateur and professional astronomy.