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Celestron C9.25 XLT 9.25'' SCT OTA
Celestron C9.25 XLT 9.25'' SCT OTA
Celestron C9.25 XLT 9.25'' SCT OTA
Celestron C9.25 XLT 9.25'' SCT OTA
Celestron C9.25 XLT 9.25'' SCT OTA

Celestron C9.25 XLT 9.25" SCT OTA

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Product Code
Telescope Type
Aperture (mm)
235 mm
Mount Type
OTA Only
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Celestron offers 2 Year Warranty for all Products bought new


Celestron C9.25 XLT 9.25" SCT OTA Optical Tube Assembly

Celestron Schmidt-Cassegrain Optical Tube Assemblies (OTA) are available individually for use with your favorite mount. Each OTA is made to the same exacting standards as those used on all our high quality telescopes. All optical surfaces are coated with Celestron’s high efficiency StarBright® multi-layered coating group. These tube assemblies are equipped with the same dovetail mounting bar used on the CGE and Advanced Series for easy attachment to a variety of popular mounts.

Celestron C9.25 XLT 9.25" SCT OTA General Features

  • 9.25" Schmidt-Cassegrain Optical Tube Assembly
  • Aluminum Optical Tube
  • Celestron's premium StarBright XLT coatings
  • 2350 mm focal length (f/11)
  • 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 dovetail rail compatible with CGE mount

Specifications: Celestron C9.25 XLT 9.25" SCT OTA

  • Optical Design: Schmidt-Cassegrain
  • Aperture: 235mm (9.25")
  • Focal Length: 2350mm (93")
  • Focal Ratio: f/10
  • Focal Length of Eyepiece 1: 25mm (0.98")
  • Magnification of Eyepiece 1: 94x
  • Finderscope: 6x30
  • Star Diagonal: 1.25" Star Diagonal
  • 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: 85mm (3.35")
  • Secondary Mirror Obstruction by Diameter: 36%
  • Secondary Mirror Obstruction by Area: 13%
  • Optical Coatings: StarBright XLT
  • Optical Tube Length: 559mm (22")
  • Optical Tube Diameter: 271.78mm (10.7")
  • Optical Tube Weight: 20 lbs (9.07 kg)
  • Dovetail: CGE Dovetail Bar

    What's in the Box

    What's in the Box: Celestron C9.25 XLT 9.25" SCT OTA

    • Celestron C9.25 XLT OTA
    • Eyepiece: 25mm
    • Finderscope: 6x30
    • Star Diagonal: 1.25" Star Diagonal
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