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The Celestron CGEM DX 1400 HD Computerized Cassegrain - 356 mm combines Celestron's newly designed CGEM DX Computerized Equatorial mount with its new EdgeHD optical system. With more than 60% more light gathering power than the 11" , the CGEM DX 1400 is Celestron's largest optical system in its class. Featuring our premium StarBright XLT coatings and 14" of aperture, this optic gives you the brightest, clearest views whether observing planetary or deep-sky objects.
The CGEM DX mount is the newest member of our fully computerized Equatorial mount series capable of carrying Celestron's high-end 11" and 14" optical tubes. The CGE PRO style, 2.75" leg tripod holds even our 14" optics securely while dampening vibration, which is ideal for both imaging and visual observing. Capable of holding 50 lbs of payload and slewing at 5deg; per second, you will be able to instantly point to any of the celestial objects in the database.
German Equatorial mounts are recognized for their rock-solid stability, simple balancing, and easy accessibility for attaching accessories. With sophisticated software features like the Hibernate function, the CGEM DX can maintain its star alignment night after night without needing to be re-aligned, making it an excellent choice for a permanent observatory facility.
CGEM DX 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.
The CGEM DX series has a new innovative Polar alignment procedure called All-Star. All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM DX sure to please astro-imagers, is the Permanent Periodic Error Correction (PEC) which enables users to train out the worm gears periodic errors, while the mount retains the PEC recordings.
For objects near the Meridian (imaginary line passing from North to South), the CGEM DX 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.
Redesigned electronics deliver constant regulated power to the motors making them capable of driving the telescope even when not perfectly balanced. This allows the CGEM DX to have the payload capacity of that of much larger mounts without sacrificing smooth tracking motion and pointing accuracy across the entire sky.
The EdgeHD optical system takes all the compact power popularized by the Schmidt Cassegrain Telescope (SCT) and combines it with an improved high-definition optical system for wide field, astrograph quality images. As a visual instrument, EdgeHD optics deliver pinpoint images even with your widest field eyepiece. You can search for all the Messier Catalogue objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For Astro-Imaging, the EdgeHD optics produce aberration-free images across your favourite CCD or DSLR camera. All EdgeHD optics are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial CCD detectors, allowing all-stars to be in tight focus to the very edge of the chip.
The Celestron Product Development team has released a white paper outlining the technology behind EdgeHD. This paper describes the development goals, design decisions, optical performance, and their practical realization in 8-, 9.25-, 11-, and 14-inch apertures. We include cross-sections of the EdgeHD series, comparative spot diagrams for the EdgeHD and competing "coma-free" Schmidt-Cassegrain designs, a table with specifications for visual and imaging, graphics showing how to place sensors at the optimum back-focus distance, and details on the construction and testing of the EdgeHD series.
Some companies boast that their telescopes give diffraction limited stars in the very centre of the field of view. EdgeHD optics not only produce diffraction limited stars on axis but maintain diffraction limited stars across the entire field of view of many of the most popular Astro-Photography cameras. Even at the very edge of a full frame camera chip, the EdgeHD 14" delivers star sizes of only 1 arc second! Along with the newly designed optics, the EdgeHD also has re-designed mechanics guaranteed to help you get the maximum performance from your instrument.
Optical Design | EdgeHD |
Aperture | 356 mm (14") |
Focal Length | 3910 mm (154") |
Focal Ratio | 11 |
Focal Length Of Eyepiece 1 | 23 mm (0.91") |
Magnification Of Eyepiece 1 | 170x |
Finderscope | 9x50 |
Star Diagonal | 2" |
Mount Type | New CGEM DX Computerized Equatorial |
Tripod | Adjustable, Stainless Steel |
Power Requirements | Car battery adapter |
Highest Useful Magnification | 841x |
Lowest Useful Magnification | 51x |
Limiting Stellar Magnitude | 15.3 |
Resolution (Rayleigh) | 0.39 arc seconds |
Resolution (Dawes) | 0.33 arc seconds |
Light Gathering Power (Compared To Human Eye) | 2586x |
Apparent Field Of View | .48 Degree |
Secondary Mirror Obstruction | 114 mm (4.5") |
Secondary Mirror Obstruction By Diameter | 32% |
Secondary Mirror Obstruction By Area | 10% |
Optical Coatings | Starbright XLT Coatings |
Optical Tube Length | 610 mm (24") |
Total Telescope Kit Weight | 185 lbs (84 kg) |
Weight Of Counterweights | 2 x 22 lbs |
Slew Speeds | Nine Slew Speeds |
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 |
Computer Hand Control | Double line, 16 character Liquid Crystal Display; 19 Fibre optic backlit LED buttons |
Nexstar+ Database | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects |
GPS | Optional SkySync GPS Accessory |
Free Shipping | No |
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