The Havens Foundation is foundation that provide astronomy education outreach at no charge (free) to schools, youth groups, and other civic organizations at Evansville, Indiana, USA. The foundation provides for other charities also but the astronomy outreach is the primary focus.
They have an observatory with a slide-off roof. Next to the observatory is an education building where they can set up the portable dome and spherical mirror system that bought from e-Planetarium comp. if there is bad weather when groups come out to the observatory.
Jim Havens who owners of Havens Foundation has specifically chosen the following reasons.
1. Spherical mirror display has not include problem.
2. Instead of seeing controlling windows on Dome, displaying on control PC is perfect.