Description
Includes the following:
Celestron CGEM DX 1400 HD Computerized Telescope, 23mm eyepiece, 9x50 finderscope, 90 degree mirror diagonal (2") for SCT scopes, CGEM DX computerized equatorial mount, adjustable stainless stell tripod with accessory tray, car battery adapter, 2 x 22 lb counterweight, NexRemote telescope control software and RS232 cable.
Specifications:
Optical Design : EdgeHD
Aperture (mm): 356 mm (14 in)
Focal Length: 3910 mm (154 in)
Focal Ratio: 11
Focal Length of Eyepiece 1 (mm): 23 mm (0.91 in)
Magnification of Eyepiece 1: 170 x
Finderscope: 9x50
Star Diagonal: 2""
Mount Type: New CGEM DX Computerized Equatorial
Tripod: Adjustable, Stainless Steel
Power Requirements: Car battery adapter
Highest Useful Magnification: 841 x
Lowest Useful Magnification: 51 x
Limiting Stellar Magnitude: 15.3
Resolution (Rayleigh): 0.39 arc seconds
Resolution (Dawes): 0.33 arc seconds
Light Gathering Power (Compared to human eye): 2586 x
Apparent Field of View : .48
Secondary Mirror Obstruction: 4.5 in in (114 mm)
Secondary Mirror Obstruction by Area: 10 %
Secondary Mirror Obstruction by Diameter: 32 %
Optical Coatings: Starbright XLT Coatings
Optical Tube Length: 24 in (610 mm)
Weight of Counterweights: 2 x 22 lbs
Total Telescope Kit Weight: 185 lbs (84 kg)
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
Computer Hand Control; Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
GPS: Optional SkySync GPS Accessory
Database: 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
The CGEM DX 1400 HD Computerized Telescope from Celestron features an EdgeHD Schmidt-Cassegrain optical system. This compound, or catadioptric, light-path employs a combination of mirrors and lenses that offer a large high-resolution aperture, a shorter tube length, and enhanced portability. This telescope has a 14" aperture, a focal length of 3910mm, and a focal ratio of f/10.98. The EdgeHD optics delivers pinpoint, aberration-free images even with the widest field eyepiece. They are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of large commercial CCD detectors, allowing all stars to be in tight focus to the very edge of the chip. Mirror tension locks hold the primary mirror in place and reduce image shift. There are cooling vents to allow hot air to be released from behind the primary mirror. It is Fastar compatible for fast f/2 imaging.
The optical path consists of a zero power corrector plate, a spherical primary mirror, and a secondary mirror along with a set of field flattening lenses integrated into the baffle tube. The resulting imaging plane is 3 times flatter than the field produced by a standard SCT telescope.
The StarBright XLT coatings are designed to produce fairly flat reflectivity across the spectrum, optimized for both CCD imaging and visual use. This high performance optical system utilizes multi-layer, anti-reflective coatings and high transmission Water White glass for the corrector lens. This results in a peak light transmission for the system of 89% at 520 nm.
The OTA comes with a very useful 9x50 finderscope fitted to its exterior. Due to its wider field of view, this ancillary optic can offer assistance in locating objects to view with the main scope.
Normal image orientation for the EdgeHD design is upside-down and reversed. The 2.0" diagonal inverts this image so it is right-side-up, but reversed. This diagonal directly accepts 2.0" eyepieces, and a 1.25" eyepiece adapter is included. It is pa
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