Clear Aperture: 14 inches (350mm) Light grasp(compared to eye with 7mm pupil size): 2,580x Optical design: Schmidt-Cassegrain catadioptic; diffraction limited Focal Ratio: f/11 Focal length: 154 inches (3,910mm) Highest useful magnification: 840x Lowest useful magnification: 50x Photographic resolution: 182 lines/mm (theoretical at 4100 angstroms) Closest focus: 100 feet (30.5 meters) Resolution (Dawes limit): 0.3 arc seconds (diffraction limit) Stellar magnitude limit: (visual; approx.) 15 Image scale: 0.37 degrees/inch (=0.014 degrees/mm) Photographic field of view: 0.35 x 0.51 degrees on 35mm slide film Primary mirror: Secondary mirror: Central obstruction: 4.5 inches (10% by area or
32% by diameter)
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The New Observatory Setup In the spring of 2006 I constructed a domed observatory on my property in Manchester, MI. The telescope is being used for astrophotograph, photometry and to track minor planets. The observatory can be remotely controlled via the Internet or remote observing room. |