Full details concerning the Armagh Planetarium are available from its web-site (see http://www.armaghplanet.com/). The Planetarium is a multifaceted organization dedicated to astronomy education from nursery-age to retirement. Founded in 1968 by the seventh Director of the Armagh Observatory, Dr Eric Mervyn Lindsay, to complement the research work of Armagh Observatory, its principal function is to disseminate knowledge and understanding of astronomy and related sciences to people of all backgrounds and all ages. Since its inception the Planetarium has operated as an independent institution, the first and perhaps the best known Director being the writer and broadcaster Sir Patrick Moore. The present Director of the Planetarium is Dr Tom Mason.
Whereas the Armagh Observatory is primarily an astronomical research institute, with an organization geared to maintaining its position as an internationally recognized centre of research excellence, the Armagh Planetarium is a leading educational establishment, seeking to attract visitors to Armagh and to educate and inform people of all age groups. The Planetarium plays an important role in public understanding of science, and as a visitor attraction to promote and enhance tourism within Armagh City and District. It helps to make Armagh one of the best known tourist destinations in Northern Ireland and presents astronomy at Armagh as an important part of the City of Armagh's heritage.
Senior responsibility for both branches of the organization, namely the Armagh Observatory and the Armagh Planetarium, rests with the Management Committee and ultimately the Board of Governors. The two organizations share a joint administrator.