The CGX-L 1100 Rowe-Ackermann Schmidt Astrograph Equatorial Telescope (CGX-L 11” RASA) sets a new standard in astroimaging systems at an extremely affordable price. The CGX-L 11” RASA telescope is an excellent advanced-level imaging setup. The Rowe-Ackermann Schmidt Astrograph (RASA) produces images in a fraction of the time compared to other optical tubes.  The CGX-L mount is designed to provide superior performance for larger telescopes while taking advantage of Celestron’s most advanced technologies: All-Star Polar Alignment, Celestron PWI telescope control software, Starry Night Special Edition software, SkyAlign, and permanently programmable periodic error correction (PPEC).

If you’re an experienced imager, you’ll love taking this mount to a dark sky site and enjoying all the conveniences of a larger observatory mount.

Rowe-Ackermann Schmidt Astrograph

Capturing impressive deep-sky astroimages is easier than ever with Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. The short focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required.

RASA 11 V2 builds on the legacy of Celestron’s Schmidt Cameras, which allowed astrophotographers to produce images with much shorter exposure times on film in the 1970s.

Today, with CCD sensor sizes as large as film or larger, the RASA 11 V2 offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. Optical performance for huge sensors with diagonals of up to 52mm wide is still excellent.

Combine this large image circle with a focal length of just 620mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.

Optical Performance

The RASA 11 V2 features optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting.

Advanced Features

RASA 11 V2 utilizes the new Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is also compatible with the optional Celestron Focus Motor (#94155-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.

Engineered as a complete astroimaging system, every component of the RASA 11 V2 is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly. The Dovetail CGE bars on the top of the optical tube provides a connection for use of optional accessories like a guidescope.

• Ultra-fast, 11-inch f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature. Cuts imaging time by more than half
• Expansive 43.3 optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52 mm for larger format sensors.
• New Ultra-Stable Focus System reduces image shift and mirror flop, while compatibility with the optional Focus Motor (#94155-A) provides the most precise focusing
• Quiet, high-output 12V MagLev fan reduces cooldown, vents with mesh filters block dust ingress
• Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras

Celestron CGX-L Computerized Equatorial Mount

The Celestron CGX-L is the flagship of Celestron’s fully computerized equatorial mount series. Designed for backyard observatories and remote astrophotographers, it provides an exceptional 75-lb payload capacity, compact design, and advanced features for seamless operation with large optical tubes, imaging setups, and wireless accessories.

Key Enhancements

• Larger 144mm worm wheels for smoother tracking and precise control of heavier loads.
• Extended 270mm dovetail saddle for enhanced support of large optical tubes.
• Optimized for remote operation, featuring home and limit optical sensors.
• Easier polar alignment adjustments for precise astrophotography.
• Improved cable management with additional AUX and autoguider ports on the Declination axis.

Performance & Build

• Compact, low-profile equatorial head for greater stability and portability.
• Upgraded motors provide increased torque for improved slewing and tracking.
• Heavy-duty belt-drive system minimizes backlash while ensuring smooth operation.
• Spring-loaded brass worm wheel & stainless steel worm gear for optimal gear meshing.
• Massive 70mm stainless steel tripod legs with a widened stance for enhanced stability.
• Integrated bubble levels for precise leveling.

Advanced Tracking & Alignment

• All-Star Polar Alignment for fast, precise polar alignment using any bright named star.
• +20° additional tracking past the meridian on either side.
• Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle for mounting versatility.
• Adjustable equatorial head position for optimal balance within the 3°-65° latitude range.

Smart Features for Remote Use

• Internal cabling ensures tangle-free operation, keeping power input and accessory ports stationary.
• Internal optical sensors for safe remote operation.
• Home sensors allow the mount to reset to the index position automatically.
• Limit sensors prevent accidental tripod strikes or cable tension issues.

Improved Ergonomics

• Integrated carry handles for easy transport.
• Ergonomic dovetail clamping knobs for secure mounting.
• Enhanced polar alignment system with smooth, low-friction adjustments.

Electronics & Software

• NexStar+ hand control with USB port for direct PC connections.
• USB 2.0 port supports ASCOM-compatible software for precision control.
• Dual autoguider ports for optimal cable management.
• PEC & PPEC ready for enhanced tracking accuracy.
• Built-in Real-Time Clock retains time and site information.
• Includes CPWI telescope control software, co-developed with PlaneWave Instruments, for multi-point mount modeling and precise go-to accuracy.