The Twitter feed of the Cincinnati Astronomical Society. Founded 1911. Explore With Us. Home to one of the nation's oldest and largest amateur astronomy groups. A place for lovers of astronomy to gathe The Cincinnati Astronomical Society, since 1911, has fostered science literacy within the community through astronomy education and outreach. CAS promotes celestial exploration and camaraderie among its membership with instructional programs, observing facilities, and exceptional telescopes. For the Community o We will be a resource of astronomical expertise. o We will promote scientific literacy. o We will foster critical and analytical thinking skills. For our Members o We will increase our members’ sense of community through social engagement. o We will grow our membership and increase the number of our active volunteers to meet our mission and sustain us in perpetuity. o We will continue to carry forward the legacies of our founder DeLisle Stewart.