The Celestron CGX 11” RASA Equatorial Telescope introduces a new standard in astroimaging systems, all at a highly competitive price point. This advanced-level imaging setup combines the Rowe-Ackermann Schmidt Astrograph (RASA) with the CGX mount, delivering exceptional performance and making it a perfect choice for experienced astrophotographers.

The Rowe-Ackermann Schmidt Astrograph (RASA) V2 is specifically designed for deep-sky astroimaging and works seamlessly with modern DSLR and astronomical CCD cameras. Its fast and wide-field f/2.2 system allows for shorter exposure times compared to traditional f/10 astroimaging, without compromising on resolution. The reduced sub-exposure times alleviate the need for precise and extended equatorial tracking, often eliminating the necessity for autoguiding.

The RASA 11 V2 is built on the legacy of Celestron's Schmidt Cameras from the 1970s, which significantly reduced exposure times. Today, with CCD sensors as large as or larger than film, the RASA 11 V2 offers an optimized 43.3mm image circle, capturing pinpoint stars on the largest imaging sensors. This vast image circle, combined with a short 620mm focal length, makes it suitable for wide-field imaging, creating extensive night sky mosaics, surveys, and even comet hunting.

The optical system of the RASA 11 V2 features advanced optics with a 4-element rare-earth glass design, ensuring high-quality images free from false color, coma, and field curvature. The optical performance is consistent across the entire image circle, offering impressive results, even for instruments far more expensive. Vignetting is also minimized.

The system includes the innovative Ultra-Stable Focus System (USFS), featuring a precision linear ball bearing that minimizes focus shift and mirror flop. The USFS is compatible with the optional Celestron Focus Motor (#94155-A), and the integrated 12V DC MagLev fan enhances temperature equilibrium and promotes optimal airflow through the dust-filtered optical tube.

The entire RASA 11 V2 is engineered as an integrated astroimaging system, with every component meticulously optimized for peak performance with DSLR and CCD cameras. It features a fully-multicoated optical window or an optional imaging filter and Dovetail CGE bars on top of the optical tube for accessory attachment.

As for the CGX mount, it represents the culmination of Celestron's experience in designing German equatorial mounts. The CGX can effortlessly support the RASA 11, making it an excellent choice for both backyard and remote astrophotographers. This mount offers a remarkable load capacity to weight ratio, a compact design, and advanced features supporting high-end telescopes, imaging setups, and the latest wireless tech accessories.

The CGX mount has been designed with several objectives in mind, including a lower profile EQ head for a more compact and stable configuration, an enhanced drive system, remote operation-friendly features equipped with home and limit optical sensors, improved polar alignment adjustments, and enhanced cable management. These enhancements not only contribute to the mount's sturdiness but also make it more user-friendly and easy to transport.

Specifications

OPTICAL TUBE INFO:
Optical Design:	Rowe-Ackermann Schmidt Astrograph
Aperture:	279mm (11")
Focal Length:	620mm (24.4")
Focal Ratio:	f/2.2
Central obstruction diameter:	114mm (4.48") (41% of aperture diameter)
Light Gathering Power (Compared to human eye):	1588x
Resolution (Rayleigh):	0.49 arc seconds
Resolution (Dawes):	0.41 arc seconds
Image Circle:	43.3mm (1.7") Ø , 4.0°
Useable field:	52mm (2.04") Ø , 4.8° only minimal performance loss at edge of FOV
Wavelength range:	400 - 700 nm
Spot size:	< 4.4 μm RMS across FOV
Optical Coatings:	StarBright XLT
Off-axis Illumination:	83% at 21mm (.82") off-axis
Optical Window:	68mm (2.67") Ø
Back focus with included camera adapter:	55mm (2.16")
Back focus from top of threaded collar:	72.8mm (2.86")
Optical Tube:	Aluminum
Optical Tube Length:	838.2mm (33")
Optical Tube Diameter:	330.2mm (13")
Focuser:	Ultra-Stable Focus System
Finderscope:	Not included
Optical Tube Weight:	43 lbs (19.5 kg)
Other Features:	Ventilation fan, dual dovetail mounting bars
Included items:	42mm (1.65") T-thread camera adapter 48mm (1.89") camera adapter Dust cover Fan battery pack
Dovetail:	CGE Dovetail Bar
MOUNT INFO:
Mount Type:	Computerized Equatorial
Instrument load capacity:	55 lbs (25 kg)
Height adjustment range (includes mount and tripod):	1200.15mm - 1968.5mm (47.25" - 77.5")
Tripod Leg Diameter:	50.8mm (2") Steel tripod
Latitude adjustment range:	3° - 65°
Mount Head Weight:	44 lbs (20 kg)
Accessory Tray:	Yes
Tripod Weight:	19.2 lbs (8.7 kg)
Weight of Counterweights:	4 x 11 lbs
Slew Speeds:	9 slew speeds - max speed 4°/second
Tracking Rates:	Sidereal, Solar and Lunar
Tracking Modes:	EQ North and EQ South
GPS:	N/A
Dovetail Compatibility:	Dual saddle plates (CG-5 and CGE saddle)
Number of Auxiliary Ports:	2 AUX Ports (Hand Control can use either AUX Port)
Autoguide Port:	Yes
USB Port:	Yes, input for Mount and Hand Control
Power Requirements:	12V DC, 4 amps
Motor Drive:	DC servo motors
Alignment Procedures:	2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align
Periodic Error Correction:	Yes
Computer Hand Control:	2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 Port for PC connection
NexStar+ Database:	40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Software:	CPWI Telescope Control Software, Celestron Starry Night Special Edition Software, and SkyPortal App
Total Kit Weight:	150.2 lbs (68 kg)
Included Items:	CGX Equatorial Head CGX Tripod Accessory Tray 4 x 11 lbs counterweights NexStar+ Hand Control Counterweight Shaft 8mm Allen Wrench 12V DC Power Cable Hand Control Holster
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.
California Residents	WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Software and Documentation

MANUALS:
CGX Mount Manual
NexStar Plus Hand Control Manual
RASA 11" V2 Manual
Whitepaper RASA
SOFTWARE & FIRMWARE:
CPWI Software
Celestron Firmware Manager (CFM) Software
Periodic Error Correction Tool (PECTool)
DRAWINGS:
CGX 1100 RASA Dimensional Drawing
RASA 11" Optical Tube Assembly Dimensional Drawings
OTHER PRODUCT FILES:
Adapter to Pier Info Guide
Camera Adapter requirements
How to Align a Red Dot Finder to Your Telescope Video
Solar Safety Warning
Celestron NexStar+ Hand Control Troubleshooting Guide

Country

Country

Celestron CGX 11" Rowe-Ackermann Schmidt Astrograph V2

Country