Celestron Advanced VX 11" Schmidt-Cassegrain Telescope

Optical Design Schmidt-Cassegrain Aperture (mm) 280mm (11") Telescope Type Computerized (GOTO) Focal Length 2800mm (110") Focal Ratio F/10 Focal Length of Eyepiece 40mm Magnification of Eyepiece 1 70x Finderscope 9x50 Star Diagonal 1.25" Star Diagonal Optical Tube Aluminum Highest Useful Magnification 660x Lowest Useful Magnification 40x Limiting Stellar Magnitude 14.7 Resolution (Rayleigh) .5 arc secondss Resolution (Dawes) .42 arc secondss Light Gathering Power 1539x Secondary Mirror Obstruction 95mm (3.75") Secondary Mirror Obstruction by Diameter 34% Secondary Mirror Obstruction by Area 12% Optical Coatings StarBright XLT Optical Tube Length 610mm (24") Optical Tube Diameter 312.42mm (12.3") Optical Tube Weight 27.5 lbs (12.4 kg) Dovetail Vixen/CG-5 Dovetail bar Mount Type Computerized Equatorial Instrument Load Capacity 30 lbs (13.6 kg) Height Adjustment Range (includes mount and tripod) 1118mm - 1626mm (44" - 64") Tripod Adjustable, Stainless Steel Tripod Leg Diameter 50.8mm (2") Latitude Adjustment Range 7 - 77 degree Mount Head Weight 17 lbs (7.71 kg) Accessory Tray Yes Tripod Weight 18 lbs (8.16 kg) Weight of Counterweights 3 x 12 lbs Slew Speeds 9 slew speeds - max speed 4�/second Tracking Rates Sidereal, Solar and Lunar Tracking Modes EQ North & EQ South GPS Optional Dovetail Compatibility Vixen/CG-5 saddle plate Number of Auxiliary ports 3 Aux ports (1 hand control and 2 AUX ports for optional accessorie s Autoguide Port Yes USB Port Yes, input on Hand Control Power Requirements 12V DC 3.5A (tip positive) Motor Drive DC servo motors Alignment Procedures 2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align Periodic Error Correction Yes Computerized Hand Control 2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 port for PC connection NexStar+ Database 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects Software Celestron's Starry Night Special Edition Software, SkyPortal App Total Kit Weight 98.5 lbs (44.67 kg) Warranty 2-year Telescope Warranty