Celestron CGX Equatorial 925 SCT

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.