Celestron Nexstar 8SE

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OPTICAL TUBE INFO: Optical Design Schmidt-Cassegrain Aperture 203.2mm (8") Focal Length 2032mm (80") Focal Ratio f/10 Focal Length of Eyepiece 1 25mm (.98") Magnification of Eyepiece 1 81x Finderscope StarPointer™ red dot finderscope Star Diagonal 1.25" Star Diagonal Highest Useful Magnification 480x Lowest Useful Magnification 29x Limiting Stellar Magnitude 14 Resolution (Rayleigh) 0.69 arc seconds Resolution (Dawes) 0.57 arc seconds Light Gathering Power (Compared to human eye) 843x Secondary Mirror Obstruction 64mm (2.5") Secondary Mirror Obstruction by Diameter 31% Secondary Mirror Obstruction by Area 9.77% Optical Coatings Starbright XLT Optical Tube Length 432mm (17") Optical Tube Diameter 232mm (9.1") Optical Tube Weight 12 lbs (5.4 kg) Dovetail CG-5 Dovetail bar MOUNT INFO: Mount Type Computerized Altitude-Azimuth Single Fork Arm Instrument load capacity 12 lbs (5.44 kg) Height adjustment range (includes mount and tripod) 965.2mm - 1422.4mm (38" - 56") Tripod leg diameter 50.8mm (2") Stainless Steel Mount Head Weight 11 lbs (5 kg) Accessory Tray Yes Tripod Weight 9 lbs (4.08 kg) Slew Speeds 9 slew speeds - max speed 5°/second Tracking Rates Sidereal, Solar and Lunar Tracking Modes Alt-Az, EQ North & EQ South GPS N/A Dovetail Compatibility CG-5 dovetail Number of Auxiliary ports 1x Aux port Autoguide port Yes USB port Yes, Hand Control input Power Requirements 8-AA batteries (not included) | 12 VDC-750 mA (Tip positive) Motor Drive DC servo motors Alignment Procedures SkyAlign, 1-Star Align, 2-Star Align, Auto 2-Star Align, Solar System Align, EQ North / EQ South Alignment (EQ align requires an equatorial wedge) Periodic Error Correction No Computerized Hand Control Double line, 18 character Liquid Crystal Display with 19 fiber optic backlit LED buttons NexStar+ Database 40,000 objects, 200 user defined programmable objects. Enhanced information on over 200 objects Software Celestron's Starry Night Special Edition Software, SkyPortal App Total Kit Weight 24 lbs (10.88 kg) Included Items NexStar SE OTA | Single Fork Arm Mount | Tripod | Accessory Tray | Star Pointer Finderscope | NexStar+ Hand Control | 25mm eyepiece | Star Diagonal