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Used Celestron 11" SCT OTA with CG-5/AVX Mt Plate - 11122 - SOLD

  • Price:
  • Sale
  • $1,199.00
  • Regular price $1,899.00

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Accessories Added

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


Used Celestron 11" SCT OTA with CG-5/AVX Mt Plate - 11122 - 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!


Aperture279 mm (11")
EyepieceNot included
Finder ScopeNot Included
Focal Ratiof/10
Highest Useful Magnification660x
Limiting Stellar Magnitude14.7
Optical CoatingsCelestron XLT
Optical DesignCassegrain
Optical DesignSCT
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