Celestron 114LCM Computerized Telescope LCM Series Manual (English) - Page 23

Appendix A - Technical Specifications Optical Specifications LCM 60 Design Refractor Aperture 60 mm Focal Length 700 mm F/ratio of the Optical System 12 Optical Coatings Fully Coated Highest Useful Magnification 142x Resolution: Rayleigh Criterion Dawes Limit 2.31 arc seconds 1.93 arc seconds LCM 70 Refractor 70 mm 900 mm 13 Fully Coated 165x 1.99 arc seconds 1.66 arc seconds Light 73x 100x Gathering Power unaided eye unaided eye Field of View: Standard Eyepiece Linear Field of View (at 1000 yds) Eyepiece Magnification: Optical Tube Length 1.5º 1.2º 79 feet 61 feet 28x (25 mm) 78x (9 mm) 29 inches 36x (25 mm) 100x (9 mm) 36 inches LCM 76 Reflector 76 mm 700 mm 9 Aluminum 180x 1.83 arc seconds 1.53 arc seconds 118x unaided eye 1.5º 79 feet 28x (25 mm) 78x (9 mm) 27 inches LCM 80 Refractor 80 mm 900 mm 11 Fully Coated 189x 1.73 arc seconds 1.45 arc seconds 131x unaided eye 1.2º 61 feet 36x (25 mm) 100x (9 mm) 36 inches LCM 90 Refractor 90 mm 660 mm 7 Fully Coated 213x 1.55 arc seconds 1.29 arc seconds 165x unaided eye 1.6º 84 feet 26x (25 mm) 73x (9 mm) 27 inches LCM 114 Reflector 114 mm 1000 mm 9 Aluminum 269x 1.21 arc seconds 1.02 arc seconds 265x unaided eye 1.1º 59 feet 40x (25 mm) 111x (9 mm) 18 inches Electronic Specifications Input Voltage Batteries Required Power Supply Requirements 12 V DC Nominal 8 AA Alkaline 12 VDC-750 mA (Tip positive) 21