Celestron C11-A XLT 11" f/10 SCT Optical Tube with CGE Dovetail # 91036-XLT

Our Price: $2,469.00
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In Stock (2 Available)
Ships by Next Business Day
Our Product ID: T-CE-91036-XLT
Manufacturer SKU: 91036-XLT
Item Can Ship: To US Only
Celestron C11-A XLT 11" f/10 SCT Optical Tube with CGE Dovetail # 91036-XLT

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Quick Overview

  • 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 dovetail rail compatible with CGE mount

Product Details


  • Aperture (mm): 279.4 mm (11 in)
  • Dovetail Compatibility: CGE Mount
  • Finderscope: 9x50
  • Focal Length: 2800 mm (110 in)
  • Focal Length of Eyepiece 1 ...: 40 mm (1.57 in)
  • Focal Ratio: 10
  • Highest Useful Magnification: 660 x
  • Light Gathering Power (Comp...: 1593 x
  • Limiting Stellar Magnitude: 14.7
  • Lowest Useful Magnification: 40 x
  • Magnification of Eyepiece 1: 70 x
  • Optical Coatings: StarBright / XLT
  • Optical Design: Schmidt-Cassegrain
  • Optical Tube: Aluminum
  • Optical Tube Length: 24 in (610 mm)
  • Optical Tube Weight: 27.5 lbs (12 kg)
  • Resolution (Dawes): 0.42 arc seconds
  • Resolution (Rayleigh): 0.5 arc seconds
  • Secondary Mirror Obstructio...: 12%
  • Secondary Mirror Obstruction: 3.75 in (95 mm)
  • Star Diagonal: 1.25


Manufacturer part number: 91036-XLT

Product carries a two-year manufacturer warranty (US/Canada only)