Used Celestron 11" Schmidt-Cassegrain OTA with CG-5/AVX Mount Plate-SOLD

  • Sale
  • $1,249.00
  • Regular price $1,899.00
  • Used Celestron 11" Schmidt-Cassegrain OTA with CG-5/AVX Mount Plate-SOLD

    • Sale
    • $1,249.00
    • Regular price $1,899.00
    • ITEM #



    • This is a used item in excellent condition
    • Compact Schmidt-Cassegrain design
    • Aluminum optical tube
    • Faststar/Hyperstar compatible

    Used Celestron 11" Schmidt-Cassegrain OTA with CG-5/AVX Mount Plate-SOLD

    Celestron Schmidt-Cassegrain Optical Tube Assemblies (OTA) are available individually to be used with your favorite mount. Each OTA is made to the same exacting standards as those used on all their high quality telescopes. All optical surfaces are coated with StarBright XLT coatings. These tube assemblies are equipped with the same dovetail mounting bar as used on the C-5 series for easy attachment to a variety of popular mounts. 

    Weighing only 27.5 lbs., this telescope is still portable enough to be taken to dark skies, but it has 89% more light gathering power than an 8" telescope. Using an f/6.3 Focal Reducer makes it usable with a wide variety of CCD cameras. As a visual instrument you can search for all of the Messier Catalog, NGC, IC and Caldwell objects. Turn this scope to the planets and see amazing detail on the surface of Jupiter; see Cassinis Division in the rings of Saturn, and resolve details on the surface of Mars. Even the distant Uranus, Neptune and Pluto are within your reach.

    Celestron C11-A XLT Optical Tube Assembly Features...
    • 11" Schmidt-Cassegrain Optical Tube Assembly
    • Aluminum Optical Tube
    • Celestron's premium StarBright XLT coatings
    • 2800 mm focal length (f/10)
    • Visual back allows for use with 1.25" accessories
    • Includes dovetail rail compatible with CG-5 Advanced VX Series mount
    Please Note: This optical tube assembly comes with a dovetail and will attach to mounts such as the Celestron Advanced VX, CG-5, CG-5GT. This OTA comes with a Vixen style dovetail bar which measures 1.75" in width. If your saddle plate is larger than this [Losmandy style] you will need a Losmandy style [4 inches on top 3 inches on bottom] dovetail plate. If you are unsure, please give us a call before you buy. Thanks!

      Additional Information

      Aperture279 mm (11")
      EyepieceNot included
      Finder ScopeNot Included
      Focal Ratiof/10
      Highest Useful Magnification660x
      Limiting Stellar Magnitude14.7
      Optical CoatingsCelestron XLT
      Optical DesignCassegrain
      OTA Length24"
      OTA Mount Type5 Dovetail
      OTA Weight27.5 lbs.
      Star DiagonalNot included
      Telescope SeriesCelestron Optical Tubes
      Warranty90 Day
    • 11" SCT optical tube only
    • V-size dovetail bar
    • Celestron XLT coatings
    • Fastar secondary
    • 1.25" visual back
    • 1.25" diagonal
    • 9X50 finder and bracket
    • 25mm eyepiece
    • Dewshield
    • Bahtinov mask
    • Bob's collimation knobs

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