The Middle Atlantic Planetarium Society is a professional organization of planetarium manufacturers, equipment suppliers, and personnel working in planetariums. It was founded in 1965. The society publishes a quarterly journal, The Constellation, and holds annual conferences, usually in May. (In 2007 the conference was held in October, jointly with two other regional planetarium associations.) In addition, regional meetings are held under the name 'Armand Spitz Memorial Regional Conference'. The society covers planetariums located in New England, New York, Pennsylvania, New Jersey, Delaware, Maryland, West Virginia, and northern Virginia. The society is a regional member organization of the International Planetarium Society. The Fall 2004 issue of The Constellation, page 5, listed all persons who had held office to that date, as well as recipients of the Distinguished Service Award.