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Celestron CGEM 1100 EdgeHD Computerised Telescope

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in stock
$60.00 (Fixed shipping cost)
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1 unit(s)
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Product Description

Celestron CGEM 1100 EdgeHD Computerised Telescope


Celestron CGEM 1100 EdgeHD Computerised Telescope is the perfect marriage of high quality optical performance with pin point accuracy providing you with the best views for observation and astro-imaging. That’s not all, the CGEM 1100 also has the NexStar software loaded giving you auto alignment, error correction and a huge database of celestial objects. Two High Performance Designs in One The EdgeHD optical system takes all of the compact power popularized by the SCT and combines it with an improved high definition optical system. You get wide field, quality and pinpoint images even with your widest fieldpiece. You can view all of the Messier Catalog objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. Aberration-free images are produced across your favorite CCD or DSLR camera. It is designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial CCD detectors. This allows every star to be in tight focus right to the edge of the sensor chip. It also has the ability to maintain diffraction limited stars across the entire FOV through most popular astrophotography cameras. Even at the very edge of a full frame camera chip, the EdgeHD 11" delivers star sizes of less than 2 arc seconds. The 11" optics produce a focal plane three-times flatter than the standard equivalent SCT telescope with diffraction limited stars. With the added FASTAR compatibility, exposure times that are 25 times faster than at f/10 can be achieved while yielding a field of view 5x wider. (FASTAR imaging requires a third party lens assembly in place of the secondary mirror). CGEM Computerized Equatorial Mount . Capable of carrying Celestron's higher-end SCT optical tubes securely and vibration free, this makes it ideal for both imaging and visual observing. Equipped with a new innovative Polar alignment procedure called All-Star™, you can choose any bright star and the software will still use it to calculate and assist you when conducting the polar alignment. Also included is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gear's periodic errors, while the mount retains the PEC recordings. It is now possible to get a better view of objects near the Meridian (imaginary line passing from North to South). The CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects. Gaze at this objects through the 23mm Axiom eyepiece that is included. Do not choose between power of wide FOVs when you can have both! A wide 82° AFOV is delivered with pinpoint images when you use it with a flat field telescope such as the CGEM EdgeHD Telescope Celestron CGEM 1100 EdgeHD Computerised

Telescope Features: 

11" EdgeHD Optics

CGEM Computerized Equatorial Mount

Celestron's premium StarBright XLT coatings

9x50 finderscope to help accurately find objects

Ultra sturdy 2" steel tripod with Accessory Tray

Mirror locks to reduce image shifts

Tube vents with micro-mesh filters to release hot air


Celestron CGEM 1100 EdgeHD Computerised Telescope








Optical Design


Aperture (mm)

280 mm (11 in)

Focal Length (mm)

2800 mm (110 in)

Focal Ratio


Eyepiece 1 (mm)

23 mm (0.91 in)

Magnification 1

122 x



Star Diagonal



CGEM Computerized Equatorial

Optical Tube



Adjustable, Stainless Steel

Power Supply

Car battery adapter

Highest Useful Magnification

661 x

Lowest Useful Magnification

40 x

Limiting Stellar Magnitude


Resolution (Rayleigh)

0.5 arc seconds

Resolution (Dawes)

0.41 arc seconds

Light Gathering Power

1600 x

Secondary Mirror Obstruction

3.75 in (95 mm)

Secondary Mirror Obstruction by Diameter

34 %

Secondary Mirror Obstruction by Area

12 %

Optical Coatings

Starbright XLT Coatings

Optical Tube Length

24 in (610 mm)

Telescope Weight

120 lbs (54 kg)


2 x 17 lbs

Motor Drive

Low cog DC Servo motors with encoders, both axes

Slew Speeds

Nine slew speeds: 5 °/sec, 2 °/sec, 1 °/sec, 64x, 16x, 8x, 4x, 1x, .5x

Tracking Rates

Sidereal, Solar and Lunar

Tracking Modes

EQ North and EQ South

Alignment Procedures

2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align

Software Precision

24 bit, 0.08 calculation


Steel worm gear and 90 mm pitch diameter brass worm wheel

Computer Hand Control

Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons


40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects

Power Requirements

12 VDC 3.2 Amps


Optional SkySync GPS Accessory

Eyepiece 1 Field of View (deg)

.67 °

User Level

For Advanced

Telescope Type


Aperture Size


Focal Length


Focal Ratio


Highest Practical Magnification






Mount Type

Computerized Mount




2 Years Limited Warranty


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