The CGEM-II 1100 EdgeHD Telescope by Celestron is a 279 mm (11-inch) Aperture corrected flat-field Schmidt-Cassegrain telescope with a CGEM II computerized German equatorial mount atop a sturdy tripod.  This 11-inch EdgeHD optical system gathers 40% more light than the 9.25-inch EdgeHD and 89% more than the 8-inch. At 28 lb, this OTA is still portable enough to take out to your favorite dark sky spot.

CGEM-II 1100 EdgeHD Features 

Ergonomic Design - The Celestron CGEM-II mount was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provide a clean look and an easy and trouble-free set-up.

Innovation - All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Its Periodic Error Correction (PEC) allows users to train out the worm gears periodic errors, while the mount retains the PEC recordings. Furthermore, its dual saddle has the capacity to mount either CGE-Pro style Dovetails or CGE-5 Dovetails.

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGEM mount will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM-II mount has a robust database with over 40,000 objects, 400 user-defined programmable objects and enhanced information on over 200 objects.

OPTICAL TUBE INFO:      

• Optical Design: EdgeHD.
• Aperture: 279.4 mm (11 inches).
• Focal Length: 2800 mm (110 inches).
• Focal Ratio: f/10.
• Focal Length of Eyepiece 1: 23 mm (0.91 inches).
• Magnification of Eyepiece 1: 122x.
• Finderscope: 9x50.
• Star Diagonal: 2-inch w/ 1.25-inch Star Diagonal.
• Optical Tube: Aluminum.
• Highest Useful Magnification: 660x.
• Lowest Useful Magnification: 40x.
• Limiting Stellar Magnitude: 14.
• Resolution (Rayleigh): 0.5 arc seconds.
• Resolution (Dawes): 0.42 arc seconds.
• Light Gathering Power (Compared to human eye): 1593x.
• Secondary Mirror Obstruction: 95 mm (3.75 inches).
• Secondary Mirror Obstruction by Diameter: 34%.
• Secondary Mirror Obstruction by Area: 12%.
• Optical Coatings: StarBright XLT.
• Optical Tube Length: 610 mm (24 inches).
• Optical Tube Weight: 28 lb (13 kg).
• Dovetail: CGE Dovetail Bar.

MOUNT INFO:  

• Mount Type: Computerized Equatorial.
• Instrument load capacity: 40 lb (18 kg).
• Height adjustment range (includes mount and tripod): 1346 - 1651 mm (53 – 65 inches).
• Tripod Leg Diameter: 50.8 mm (2 inches) Steel tripod with graduated markings on the lower section.
• Latitude adjustment range: 15° - 70°.
• Total EQ Head Weight: 41 lb (18.6 kg).
• Accessory Tray: Yes.
• Tripod Weight: 20 lb (9 kg).
• Weight of Counterweights: 1 x 17 lb.
• Slew Speeds: 9 slew speeds.
• Tracking Rates: Sidereal, Solar and Lunar.
• Tracking Modes: EQ North & EQ South.
• Dovetail Compatibility: Dual saddle plates (Vixen and CGE saddle)
• Number of Auxiliary ports: 2 (1x Hand control port and 1x AUX Port for optional accessories).
• Autoguide port: Yes.
• USB Port: Yes.
• Power Requirements: 12 VDC, 3.2 amps.
• Motor Drive: Low cog DC servo motors.
• Alignment Procedures: AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align.
• Periodic Error Correction: Yes.
• Computer Hand Control: Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connection.
• Database: 40,000+ objects, 100 user-defined programmable objects Enhanced information on over 200 objects.
• Software: Starry Night Special Edition.

• To properly power this product, you will need the AC adapter listed in the recommended items below.
• An 11-inch Astrograph.
• EdgeHD Optics for 3x Flatter Edges.
• All-Star Polar Alignment.
• Dual Saddle Flexibility.
• StarBright XLT Optical Coatings.
• Mirror Clutches.
• Internal Cable Wiring.

• Celestron's 1100 EdgeHD 279 mm (11-inch) corrected Schmidt-Cassegrain OTA.
• CGEM-II Mount: Equatorial/ Large Alt-Azimuth Alignment Knobs/ All-Star polar alignment and PEC/ Dual Saddle.
• Tripod: Adjustable 2-inch Steel Legs with Graduated markings
• Hand Controller: NexStar+.
• (2) Counterweights, 17 lb each.
• Accessory Tray/ Spreader.
• Finder: 9 x 50 Optical.
• 2-inch Eyepiece: 23 mm (0.91 inches), 122x mag./Luminos.
• 2-inch Star Diagonal includes an 1.25-inch adapter.
• Power Adapter/ DC Cigarette Lighter adapter.
• CD ROM: NexRemote.
• 2 Year Warranty.