CELESTRON NexStar 4SE Computerized 11049 Telescope

CELESTRON NexStar 4SE Computerized 11049 Telescope Type: Telescopes Specifications: Optical Design: Maksutov-Cassegrain Aperture (mm): 102 mm (4.02') Focal Length: 1325 mm (52') Focal Ratio: 13 Focal Length of Eyepiece 1 (mm): 25 mm (0.98') Magnification of Eyepiece 1: 53 x Finderscope: StarPointer Star Diagonal:'ternal Flip mirror for straight thru or 90 viewing angle Mount Type: Single Fork Arm Altazimuth Tripod: Steel with built-in wedge Power Requirements: 8-AA batteries (not'cluded) Highest Useful Magnification: 241 x Lowest Useful Magnification: 15 x Limiting Stellar Magnitude: 12.5 Resolution (Rayleigh): 1.37 arc seconds Resolution (Dawes): 1.14 arc seconds Light Gathering Power (Compared to human eye): 212 x Apparent Field of View: 1 degree Secondary Mirror Obstruction: 1.38' (35 mm) Secondary Mirror Obstruction by Area: 12 % Secondary Mirror Obstruction by Diameter: 34 % Optical Coa...