The CGEM II 1100 Schmidt-Cassegrain Telescope combines Celestron's premium StarBright XLT coated optics with the newly redesigned CGEM II computerized equatorial mount. Despite its substantial capabilities, this telescope remains sufficiently portable, with the optical tube assembly of the CGEM II 1100 weighing just 27.5 lbs. It provides a remarkable 89% increase in light-gathering power compared to an 8" telescope and more than a 40% improvement over the 9.25" model.

This telescope excels as a stable platform for extended exposure astrophotography with optional CCD cameras or photographic equipment. Furthermore, it serves as a valuable tool for scientific research, benefiting from Celestron's premium StarBright XLT coatings.

The CGEM II mount has undergone a refreshing update, boasting an appealing and contemporary design. It offers secure and vibration-free support for Celestron's higher-end SCT optical tubes, accommodating sizes up to 11". This feature makes it well-suited for both visual observing and imaging. With a payload capacity of 40 lbs. and a rapid slewing speed of 5° per second, it allows for instantaneous alignment with celestial objects stored in its extensive database.

ERGONOMIC DESIGN

The CGEM II prioritizes user-friendliness with its large Altitude and Azimuth adjustment knobs, facilitating swift and straightforward polar alignment. The internal wiring of the RA and DEC motors ensures a neat appearance and a hassle-free setup process.

INNOVATION

Celestron's CGEM II series introduces the innovative Polar alignment procedure known as All-Star™. This groundbreaking feature empowers users to select any bright star for polar alignment, with the software performing the necessary calculations to aid in the alignment process. Additionally, astroimagers will appreciate the Permanent Periodic Error Correction (PEC), which enables users to mitigate periodic errors in the worm gears while retaining the PEC recordings.

PERFORMANCE

The CGEM II excels in tracking celestial objects near the Meridian, allowing uninterrupted imaging in the most favorable part of the night sky. The mount boasts a comprehensive database, including over 40,000 objects, support for 100 user-defined programmable objects, and enhanced information on more than 200 specific celestial entities. Celestron's CGEM II mount strikes a perfect balance between the Advanced Series and CGE Series, offering the portability of the former and the precision of the latter.

Specifications

OPTICAL TUBE INFO:
Optical Design:	Schmidt-Cassegrain
Aperture:	279.4mm (11")
Focal Length:	2800mm (110")
Focal Ratio:	f/10
Focal Length of Eyepiece 1:	40mm (1.57")
Magnification of Eyepiece 1:	70x
Finderscope:	9x50
Star Diagonal:	1.25" Star Diagonal
Optical Tube:	Aluminum
Highest Useful Magnification:	660x
Lowest Useful Magnification:	40x
Limiting Stellar Magnitude:	14.7
Resolution (Rayleigh):	0.5 arc seconds
Resolution (Dawes):	0.42 arc seconds
Light Gathering Power (Compared to human eye):	1593x
Secondary Mirror Obstruction:	95mm (3.75")
Secondary Mirror Obstruction by Diameter:	34%
Secondary Mirror Obstruction by Area:	12%
Optical Coatings:	StarBright XLT
Optical Tube Length:	610mm (24")
Optical Tube Diameter:	312.42mm (12.3")
Optical Tube Weight:	27.5 lbs (12.4 kg)
Dovetail:	CGE Dovetail Bar
MOUNT INFO:
Mount Type:	Computerized Equatorial
Instrument load capacity:	40 lbs (18 kg)
Height adjustment range (includes mount and tripod):	1346mm - 1651mm (53" – 65")
Tripod Leg Diameter:	50.8mm (2") Steel tripod with graduated markings on lower section
Latitude adjustment range:	15° - 70°
Mount Head Weight:	40 lbs (18.14 kg)
Accessory Tray:	Yes
Tripod Weight:	20 lbs (9 kg)
Weight of Counterweights:	2 x 17 lbs
Slew Speeds:	9 slew speeds - max speed 4.5°/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 (1x Hand control Port and 1x AUX Port for optional accessories)
Autoguide Port:	Yes
USB Port:	Yes, input on Hand Control
Power Requirements:	12V DC, 3.2 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
Computerized 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:	Celestron Starry Night Special Edition Software and SkyPortal App
Total Kit Weight:	105.5 lbs (47.8 kg)
Included Item:	CGEM II Equatorial Head Tripod Accessory Tray 2 x 17 lbs counterweights NexStar+ Hand Control DC Power Cable (item#18769) 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:
CGEM II EQ Mount Manual
NexStar Plus Hand Control Manual
Schmidt-Cassegrain Optics Manual
SOFTWARE & FIRMWARE:
CPWI Software
Celestron Firmware Manager (CFM) Software
NexRemote Telescope Control Software
Periodic Error Correction Tool (PECTool)
OTHER PRODUCT FILES:
SCT & EdgeHD Collimation Guide
How to Align a Red Dot Finder to Your Telescope Video
Solar Safety Warning
What are the Sizes of Collimation Screws
Celestron NexStar+ Hand Control Troubleshooting Guide

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Celestron CGEM II 1100 SCT

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