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IMPORTANT: Our store is located in Canada. All orders that include products manufactured outside of Canada or USA will be subject to tariffs and duties, regardless of the order value. US customers are responsible for all applicable duties and tariffs, and those will be billed by the carrier, except for the Lacerta upgrade kit, for which we collect them at checkout.
Celestron CGX Equatorial 925 SCT
Celestron CGX Equatorial 925 SCT
Celestron CGX Equatorial 925 SCT

Celestron CGX Equatorial 925 SCT

by Celestron
SKU CEL-12051
$3,999.00 - $3,999.00
$3,999.00
$3,999.00 - $3,999.00
$3,999.00
Price Match Policy!
  • 9.25" (235mm) Schmidt-Cassegrain Optical Tube Assembly
  • CGX Computerized German Equatorial Mount
  • 55 lb (25 kg) instrument load capacity
  • 0.49 arc second Dawes Limit resolution
  • StarBright XLT optical coatings for maximum light transmission
  • NexStar+ hand control with a 40,000+ object database
  • Includes CPWI Telescope Control Software
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Celestron CGX Equatorial 925 Schmidt-Cassegrain Telescope

    The Celestron CGX Equatorial 925 Schmidt-Cassegrain Telescope combines a 235mm (9.25") aperture with the robust 55 lb capacity CGX equatorial mount, creating a serious platform for high-resolution visual observation and deep-sky astrophotography. Its f/10 focal ratio and 2350mm focal length deliver the image scale required to resolve planetary details down to 0.49 arc seconds, while StarBright XLT coatings ensure the 1127x greater light-gathering power is delivered to the eyepiece. The entire 105.2 lb system is managed by the NexStar+ controller, which provides GoTo slewing to over 40,000 objects in its database.

    9.25" f/10 Optics: 0.49 Arc Second Resolution with StarBright XLT

    The 9.25" optical tube is widely regarded as the sweet spot in the Schmidt-Cassegrain lineup, offering a significant jump in light-gathering power over an 8" model without the weight and portability challenges of an 11". With a limiting stellar magnitude of 14.4 and a Dawes resolution of 0.49 arc seconds, this telescope resolves fine detail in Jupiter's cloud bands, Cassini's Division in Saturn's rings, and the cores of bright globular clusters like the Hercules Cluster (M13).

    Celestron's proprietary StarBright XLT coatings increase light transmission across the visual spectrum, resulting in brighter images and higher contrast. This is especially critical for an SCT design with its corrector plate, primary, and secondary mirrors; maximizing throughput at each surface means more photons reach your eye or camera sensor, making faint galaxies and nebulae appear more distinct against the background sky.

    CGX Mount: A 55 lb Payload Capacity Imaging Foundation

    The CGX mount is engineered to carry the 20 lb 9.25" OTA with ample capacity to spare for a full astrophotography payload, supporting up to 55 lbs of equipment. The mount head itself weighs 44 lbs and sits on a heavy-duty tripod with 2" diameter steel legs, creating a stable foundation that damps vibrations quickly—a critical requirement for long-exposure imaging. DC servo motors provide smooth, quiet slewing and tracking, while built-in Periodic Error Correction (PPEC) minimizes worm gear imperfections for rounder stars.

    Ergonomics are central to the CGX design. Large, easy-to-use latitude and azimuth adjustment knobs simplify the polar alignment process, and the mount's low-profile head improves stability by lowering the system's center of gravity. The dual-fit saddle plate accepts both narrow (CG-5) and wide (CGE) dovetail bars, providing compatibility with a wide range of optical tubes without needing an adapter.

    GoTo Navigation: 40,000+ Objects with NexStar+ and CPWI

    At the heart of the system is the NexStar+ hand controller, giving you access to a database of over 40,000 celestial objects. After a simple alignment procedure, the CGX 925 can automatically slew to and track planets, stars, nebulae, galaxies, and more. The controller's two-line LCD screen provides object information, and the backlit buttons are easy to use in the dark.

    For more advanced control, the included Celestron PWI (CPWI) software allows you to command the telescope from a PC. This software provides a sophisticated graphical interface, advanced mount modeling for extreme pointing accuracy, and seamless integration with the included Starry Night Special Edition planetarium software. You can plan your observing session on your computer and execute it perfectly at the telescope.

    Engineered for Imaging: 4°/sec Slewing and Integrated Cable Management

    The CGX was designed from the ground up for the modern astro-imager. Internal cabling through the mount prevents snags and tangles during long slews across the sky. The system includes an autoguide port and two auxiliary ports for accessories, all of which are located on the stationary part of the mount to prevent cable drag from affecting tracking accuracy.

    With 9 slew speeds reaching up to 4 degrees per second, you can move quickly from one target to the next. The mount also features optical home and limit sensors, allowing you to operate the mount remotely with confidence, knowing it will not crash into the tripod. These imaging-centric features make the CGX 925 a capable instrument for capturing everything from planetary videos to long-exposure images of the deep sky.

    The CGX Advantage: A Modern Upgrade Over the CGEM

    As the successor to Celestron's workhorse CGEM mount, the CGX incorporates years of engineering feedback to deliver superior stability and usability. Key improvements include:

    • Lower Profile Head: Increases stability by lowering the telescope's center of gravity, making it less susceptible to wind and vibration.
    • Improved Motors and Belt-Drive System: Provides smoother tracking with less backlash, essential for autoguiding and producing sharp, pinpoint stars in long exposures.
    • Better Ergonomics: Large, glove-friendly adjustment knobs and built-in carrying handles make setup and transport significantly easier.
    • Smarter Cable Management: Internal cabling and fixed-position ports for power, hand control, and autoguiding eliminate the risk of cable wrap and snags.

  • What is the realistic imaging payload for the Celestron CGX 925 telescope?

    With a total instrument capacity of 55 lbs and the included 20 lb optical tube, the CGX mount has 35 lbs of remaining capacity. This is more than enough for a guide scope, a dedicated astronomy camera, a filter wheel, and an off-axis guider, making it a very capable platform for serious deep-sky astrophotography.

    How does the CGX 925 perform on planets like Jupiter vs. deep-sky objects like the Andromeda Galaxy (M31)?

    The telescope's long 2350mm focal length at f/10 is ideal for high-magnification planetary viewing, resolving fine details in Jupiter's atmosphere and Saturn's rings. For large deep-sky objects like the Andromeda Galaxy (M31), the native field of view is quite narrow. However, its 9.25" aperture gathers 1127x more light than the human eye, making it excellent for resolving details within galaxies and pulling out faint structures in nebulae. Many imagers add an optional focal reducer to create a wider, faster system for deep-sky work.

    Is the Celestron CGX 925 portable enough for field use away from home?

    While the total kit weight is 105.2 lbs, the system breaks down into manageable components: the 20 lb optical tube, 44 lb mount head, 19.2 lb tripod, and two 11 lb counterweights. While it's not a grab-and-go setup, one person can typically transport and assemble it in the field without issue, making it a popular choice for dark-sky trips.

    What is the advantage of the dual CG-5/CGE saddle plate on the CGX 925?

    The dual saddle plate provides versatility. It can mount telescopes using the narrower Vixen-style (CG-5) dovetail bar or the wider Losmandy-style (CGE) bar. This means you can easily swap different optical tubes onto your CGX mount without needing to buy and install an adapter plate.

    Can I control the Celestron CGX 925 from a computer?

    Yes. The CGX mount features a USB port for direct connection to a PC. Using the included Celestron PWI (CPWI) software, you can control all mount functions, perform an advanced All-Star Polar Alignment, and integrate with planetarium software for a comprehensive remote-control experience.

    Is the f/10 focal ratio of the CGX 925 too slow for astrophotography?

    The f/10 ratio is excellent for planetary and lunar imaging, where high magnification is key. For deep-sky imaging of fainter objects, it requires longer individual exposure times. Many astrophotographers use an optional f/6.3 focal reducer, which transforms the telescope into a faster system better suited for capturing nebulae and galaxies.

  • Optical Design Schmidt-Cassegrain
    Aperture 235mm (9.25")
    Focal Length 2350mm (93")
    Focal Ratio f/10
    Optical Coatings StarBright XLT
    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 1127x (Compared to human eye)
    Secondary Mirror Obstruction 36% by diameter, 13% by area
    Optical Tube Aluminum, 20 lbs (9.07 kg)
    Optical Tube Length 559mm (22")
    Dovetail CGE Dovetail Bar
    Mount Type Computerized German Equatorial
    Instrument Load Capacity 55 lbs (25 kg)
    Mount Head Weight 44 lbs (20 kg)
    Tripod 2" Steel Legs, 19.2 lbs (8.7 kg)
    Counterweights 2 x 11 lbs
    Latitude Adjustment Range 3° - 65°
    Motor Drive DC servo motors
    Slew Speeds 9 speeds, max 4°/second
    Tracking Rates Sidereal, Solar, Lunar
    Dovetail Compatibility Dual saddle (CG-5 and CGE)
    Power Requirements 12V DC, 4 amps
    Alignment Procedures 2-Star, 1-Star, Solar System, Last, Quick Align
    Periodic Error Correction Yes
    Ports 2x AUX, Autoguide, USB
    Hand Control NexStar+, 40,000+ object database
    Software Included CPWI, Starry Night Special Edition, SkyPortal App
    Total Kit Weight 105.2 lbs (47.71 kg)

    • 9.25" Schmidt-Cassegrain Optical Tube

      × 1

    • CGX Equatorial Head

      × 1

    • CGX Tripod

      × 1

    • Accessory Tray

      × 1

    • 11 lb Counterweight

      × 2

    • NexStar+ Hand Control

      × 1

    • 25mm Eyepiece (1.25")

      × 1

    • 1.25" Star Diagonal

      × 1

    • 6x30 Finderscope

      × 1

    • 12V DC Power Cable

      × 1

    • Hand Control Holster

      × 1

  • This telescope is covered by Celestron's 2-Year Telescope Warranty. For details, please see the Celestron Warranty Policy page.


    Solar Warning

    Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.