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 |
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| California Residents |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. |