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Telescopes (กล้องดูดาว) > Celestron >
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ITEM # 12017 CGEM II 800 EDGE HD TELESCOPE |
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ITEM # 12017 CGEM II 800 EDGE HD TELESCOPE- 8" EdgeHD optics
- CGEM II computerized equatorial mount
- Celestron's premium StarBright XLT coatings provide maximum light transmission
- A 9x50 finderscope, 1.25" mirror diagonal for more comfortable viewing, and 1.25" 40 mm Pl?ssl eyepiece are all included
EDGEHD FEATURES - EdgeHD aplanatic, flat field SCT optics for pinpoint stars to the edge of the largest imaging sensors and widest eyepieces. Lightweight and portable
- Aluminum optical tube with tube vents featuring an integrated 95-micron mesh filter allows hot air to be released from behind the primary mirror. Mirror support knobs hold the mirror in place and reduce image shift during imaging
- Versatile design accommodates 3 focal ratios: native f/10, f/7 with the addition of a focal reducer, or ultra-fast f/2 imaging with a removable secondary mirror and third-party accessories
COMPUTERIZED MOUNT FEATURES - 40 lbs payload capacity
- Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle
- 2" steel legs with height index marks for quick leveling
- USB 2.0 port on hand control for direct links to a PC via ASCOM supported software.
- 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
- Internal cabling throughout for worry-free remote operation
- Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation
- Able to track past the meridian allowing seamless imaging
- Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings.
- Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits
- Built-in polar alignment program to polar align on any star in the sky
- Longer clutch levers to make tightening and loosening of clutches easier
- Custom database lists of all the most famous deep-sky objects by name and catalog number
- Solar System alignment method allows to view the moon and planets during the day
- Permanent Programmable Periodic Error Correction (PEC) corrects periodic tracking errors inherent to all worm drives
- Custom Rate 9 feature allows to set maximum slew rate
- Tandem mode allows to star align the mount even when positioned for tandem scope use
- RS-232 communication port on hand control to control the telescope via a personal computer
- Includes NexRemote telescope control software, for advanced control of telescope via computer
- Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings
- GPS-compatible with optional SkySync GPS Accessory
SPECIFICATIONS| Optical Tube Info: | |
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| Optical Design | EdgeHD |
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| Aperture (mm) | 203.2 mm (8 in) |
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| Focal Length | 2032 mm (80 in) |
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| Focal Ratio | 10 |
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| Focal Length of Eyepiece 1 (mm) | 40 mm (1.57 in) |
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| Magnification of Eyepiece 1 | 51 x |
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| Finderscpoe | 9x50 |
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| Star Diagonal | 1.25 |
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| Optical Tube | Aluminum |
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| Highest Useful Magnification | 480 x |
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| Lowest Useful Magnification | 29 x |
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| Limiting Stellar Magnitude | 14 |
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| Resolution (Rayleigh) | 0.69 arc seconds |
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| Resolution (Dawes) | 0.57 arc seconds |
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| Light Gathering Power (Compared to human eye) | 843 x |
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| Secondary Mirror Obstruction | 2.7 in (69 mm) |
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| Secondary Mirror Obstruction by Diameter | 34% |
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| Secondary Mirror Obstruction by Area | 11% |
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| Optical Coatings | StarBright XLT |
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| Optical Tube Length | 17 in (432 mm) |
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| Optical Tube Weight | 14 lbs (6.35 kg) |
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| Dovetail Compatibility | CGE Mount |
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| Mount Info: | |
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| Mount Type | German Equatorial Mount |
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| Tripod | 2" Steel tripod with graduated markings on lower section |
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| Dovetail Mount | Directly connects to both CG-5 & CGE dovetail bars |
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| Payload Capacity | 40 lbs |
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| Latitude Range | 15? - 70? |
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| Power Requirements | 12 VDC, 3.2 amps |
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| Ports | 1x Hand control port, 1x Auxiliary Port, 1x Auto guider port, 1 USB 2.0 port (on hand control) |
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| Motor Drive | Low cog DC servo motors |
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| Slew Speeds | 9 slew speeds |
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| Tracking Rates | Sidereal, Solar and Lunar |
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| Tracking Modes | EQ North and EQ South |
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| Alignment Procedures | AutoAlign, 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align |
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| Computerized Hand Control | Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons, USB 2.0 port for PC connection |
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| Database | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects |
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| Mount Weight | 40 lbs |
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| Tripod Weight | 20 lbs |
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| Weight of Counterweight | 1 x 17 lbs counterweight |
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| Total Weight of Mount Kit | 77 lbs |
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