Celestron 9.25 Inch Schmidt-Cassegrain OTA with CG-5 Mount Plate

  • Sale
  • Regular price $1,183.95
  • Celestron 9.25 Inch Schmidt-Cassegrain OTA with CG-5 Mount Plate

    • Sale
    • Regular price $1,183.95
    • ITEM #



    Free Shipping
    • 9.25 Inch Schmidt-Cassegrain OTA
    • Aluminum Optical Tube, weighs only 20 pounds
    • StarBright XLT coatings
    • Visual back allows 1.25 Inch accessories
    • CG-5 Dovetail Mount Plate  


    Celestron 9.25 Inch Schmidt-Cassegrain OTA with CG-5 Mount Plate


    C9 1/4-A XLT (CG-5) Optical Tube Assembly

    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 plates as used on CG-5 mounts for easy attachment to a variety of popular mounts (see below). 

    Besides seeing all of the Messier Catalog objects, you can also see hundreds of other, less famous, but equally interesting NGC, IC, and Caldwell objects. Turn this scope to the planets and see amazing detail on the surface of Jupiter; see Cassini's 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.

    The Celestron C9 1/4 is Celestron's first new Schmidt-Cassegrain optical system in over a decade. The new 9.25 Inch Schmidt-Cassegrain features a precision optical system with a 2350mm focal length, a focal ratio of f/10, and comes standard with Celestron's StarBright XLT coatings at no extra cost.

    What's more, you have Celestron's guarantee of uncompromising quality backed up with a Two Year warranty. Celestron warrants your telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship.

    OPT Product Number: CE-91025-XLT

    Please Note: This optical tube assembly will fit on the Celestron CG-5 and Advanced VX mount as well as the Meade LXD55, the older style Losmandy GM-8, and some Vixen mounts. It will not attach to mounts that accept a 3 Inch dovetail, such as the CGE, G-11, Paramount, or newer GM-8. If you are unsure, please give us a call before you buy. Thanks!

    Additional Information

    Aperture235 mm (9.25")
    Focal Length2350mm
    Focal Ratiof/10
    Free ShippingYes
    Optical CoatingsCelestron XLT
    Optical DesignSchmidt Cassegrain
    OTA Length22"
    OTA Mount TypeCG 5 Dovetail
    OTA Weight20 lbs.
    Telescope SeriesCelestron Optical Tubes
    Warranty2 Year Warranty
    • Celestron 9.25 Inch Schmidt-Cassegrain OTA
    • CG-5 Dovetail Mount Plate
    • 6x30 Optical Finderscope
    • 1.25 Inch Star Diagonal
    • 1.25 Inch Eyepiece/ 25 mm, 94x mag.
    • 2 Year Warranty



    Questions & Answers

    Ask a Question
    • Is this OTA Fastar / Hyperstar Compatible?

      According to Celestron, all of the current 9.25" SCT scopes are now shipped with Fastar secondary housings.

    • Hello. I'm thinking about using one of these telescopes for imaging. What's the image circle for this model? I can only find information about the edgeHD version.

      The image circle for the SCT is not defined as a field flattener is needed to properly image with this scope with anything beyond a tiny sensor. SCT's have a curved field and coma that is not noticeable to the eye usually but very noticeable with a camer

    • Is this OTA compatible with the mount SkyWatcher AZ-EQ6 Goto?

      For visual use, yes this combination will work just fine. If you are planing on doing astrophotography with the SkyWatcher Alt-Az EQ6, I reccomend looking into an 8" SCT or smaller telescope.

    • For this telescope what would I need to buy to be able to use 2" eyepieces? About what would it cost and would it be worth the money and aggravation that might be involved? Thank you!

      Not too much money and very little aggravation required. Basic SCT compatible 2" mirror diagonals start at $59.95 for OPT's house brand (OS-D2SCT), and we and other manufacturers have various 99% dielectric diagonal solutions in the $130-200 range. You


      Yes, this will mount, as both the Bresser mount and this scope have V-style dovetail plates. You will need mto make sure that you have at least 20 lbs of counterweights on the mount to balance the weight of this optical tube.

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