OPEN BOX - C9.25-A XLT Optical Tube Assembly (91027-XLT) (Copy)

OPEN BOX INFORMATION This is an open box item. It has been purchased by a customer and returned without use. This telescope is still in its original packaging with all additional accessories listed. Overview 9.25" Schmidt-Cassegrain Optical Tube Assembly Aluminum Optical Tube Celestron's premium StarBright XLT coatings 2350 mm focal length (f/10) 25 mm eyepiece included (94x) Visual back allows for use with 1.25" accessories 6x30 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 Description 9.25" Schmidt-Cassegrain Optical Tube Assembly Aluminum Optical Tube Celestron's premium StarBright XLT coatings 2350 mm focal length (f/10) 25 mm eyepiece included (94x) Visual back allows for use with 1.25" accessories 6x30 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) 234.95 mm (9.25") Focal Length 2350 mm (93") Focal Ratio 10 Focal Length of Eyepiece 1 (mm) 25 mm (0.98") Magnification of Eyepiece 1 94x Finderscope 6x30 Star Diagonal 1.25 Optical Tube Aluminum Highest Useful Magnification 555x Lowest Useful Magnification 34x Limiting Stellar Magnitude 14.4 Resolution (Rayleigh) 0.59 arc seconds Resolution (Dawes) 0.49 arc seconds Light Gathering Power (Compared to human eye) 1127x Secondary Mirror Obstruction 85 mm (3.35") Secondary Mirror Obstruction by Diameter 36% Secondary Mirror Obstruction by Area 13% Optical Coatings StarBright / XLT Optical Tube Length 559 mm (22") Optical Tube Weight 20 lbs (9.07 kg) Dovetail Compatibility CG-5 Mount