USED - C11-A XLT Optical Tube Assembly w/ Hyperstar

USED GEAR INFORMATION This telescope is in good condition. The optical surfaces appear in good condition. Includes a Celestron Dew heater ring (installed), Celestron flexible dew shield, 0.63x reducer/corrector, 1.25" visual back, 1.25" star diagonal, T-adapter, ZWO EAF, Telrad finder base, Tri-Bahtinov mask, and aftermarket Losmandy dovetails. OTA only, mount not included. Hyperstar for C11 includes Hyperstar, 2" M54 filter drawer, front and back caps, and secondary mirror holder. This is a large and bulky item, so we recommend an in-person pickup. If you choose to have it shipped there may be additional charges not calculated at checkout. Product Description 11" Schmidt-Cassegrain Optical Tube Assembly Aluminum Optical Tube Celestron's premium StarBright XLT coatings 2800 mm focal length (f/10) 40 mm eyepiece included (70x) Visual back allows for use with 1.25" accessories 9x50 finderscope to help accurately find objects Star diagonal provides more comfortable viewing position when observing objects that are high in the sky Includes choice of D-Style dovetail rail compatible with CGE mount, or V-Style dovetail rail compatible with CG-5 Advanced Series mount Specifications Optical Design Schmidt-Cassegrain Aperture (mm) 279.4 mm (11") Focal Length 2800 mm (110") Focal Ratio 10 Focal Length of Eyepiece 1 (mm) 40 mm (1.57") Magnification of Eyepiece 1 70x Finderscope 9x50 Star Diagonal 1.25 Optical Tube Aluminum Highest Useful Magnification 660x Lowest Useful Magnification 40x Limiting Stellar Magnitude 14.7 Resolution (Rayleigh) 0.5 arc seconds Resolution (Dawes) 0.42 arc seconds Light Gathering Power (Compared to human eye) 1593x Secondary Mirror Obstruction 95 mm (3.75") Secondary Mirror Obstruction by Diameter 34% Secondary Mirror Obstruction by Area 12% Optical Coatings StarBright / XLT Optical Tube Length 610 mm (24") Optical Tube Weight 27.5 lbs (12 kg) Dovetail Compatibility CGE Mount