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Celestron premium StarBright XLT coatings |
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CGE PRO computerized Equatorial mount |
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Schmidt-Cassegrain mechanism that moves the primary mirror to adjust focus is supported by two pre-loaded ball bearings, minimizing the "mirror flop" typical of bushing focus mechanisms |
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Heavy duty stainless steel tripod adjustable from 38 - 55" |
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6x30 finderscope to help accurately find objects |
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Star diagonal provides more comfortable viewing position when observing objects that are high in the sky |
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Proven NexStar computer control technology |
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40,000 object database with over 100 user-definable objects and expanded information on over 200 objects |
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New All-Star Polar Alignment routine for both Northern and Southern Hemispheres. |
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Software Features include: Database Filter Limits, Hibernate, five alignment methods and user-defined slew limits. |
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Flash upgradeable hand control software and motor control units for downloading product updates over the Internet |
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Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms |
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Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features |
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12VDC Servo Motors with integrated optical encoders |
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Permanent programmable periodic error correction (PEC) - corrects for periodic tracking errors inherent to all worm drives |
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Drive Motors - High quality motors with seven slot skewed armature to minimize magnetic cogging for quiet operation and long life. Precision made cut-steel gears in gearbox for Improve tracking precision. |
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Bearing and Shaft - Main shafts are made from 1.57" diameter steel tubing with .40" wall thickness with two preloaded 2.68" O.D. tapered roller bearings on each axes |
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Precision worm drive system - .75" pitch dia. precision made steel worm preloaded with two .87" OD ball bearings to minimize run-out (a source of periodic error). 255 tooth 6" pitch dia. precision made worm wheel with enveloping brass teeth |
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Spring loaded DEC worm to minimize backlash and makes guiding easy. |
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4 point RA and DEC clutch system for no-slip pointing precision |
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Autoguide port, PC port and auxiliary ports located on the electronic pier for long exposure astrophotography |
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Latitude range: 10° to 65° northern or southern hemispheres |
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RS-232 communication port on hand control to control the telescope via a personal computer |
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Includes NexRemote telescope control software, for advanced control of your telescope via computer |
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GPS-compatible with optional CN16 GPS Accessory (93967) |
| Optical Design | Schmidt-Cassegrain |
| Aperture | 235 mm (9.25") |
| Focal Length | 2350 mm (92.52") |
| Focal Ratio | 10 |
| Finderscope | 6x30 |
| Mount | CGE Pro Computerized Equatorial |
| Optical Tube | Aluminum |
| Eyepiece 1 | 25 mm (0.98") |
| Magnification 1 | 94x |
| Star Diagonal | 1.25 |
| Tripod | Adjustable, 2.75" Stainless Steel legs |
| CD ROM | NexRemote control software with RS232 cable |
| Power Supply | Car battery adapter |
| Highest Useful Magnification | 555x |
| Lowest Useful Magnification | 34x |
| Limiting Stellar Magnitude | 14.4 |
| Resolution (Rayleigh) | 0.59 arcsec |
| Resolution (Dawes) | 0.49 arcsec |
| Light Gathering Power | 1127x |
| Angular Field of View | 0.53 ° |
| Linear Field of View (@1000 yds) | 28 ft (8.53 m) |
| Optical Coatings | Starbright XLT Coating |
| Secondary Mirror Obstruction | 3.35" (85.09 mm) |
| Secondary Mirror Obstruction by Area | 0.131 |
| Secondary Mirror Obstruction by Diameter | 0.362 |
| Slew Speeds | Nine slew speeds 5.5 deg/s, 2 deg/s, 0.5 deg/s, 64x, 16x, 8x, 4x, 1x, 0.5x |
| Tracking Rates | Sidereal, Solar and Lunar |
| Tracking Modes | EQ North and EQ South |
| Alignment Procedures | 2-Star Align, Solar System Align, Last Alignment, Quick Align, 1-Star Align |
| Database | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects |
| Power Requirements | 12 VDC 2.5A |
| Internal Clock | Yes |
| GPS | Optional CN-16 GPS Accessory |
| Dimensions | 22" (558.8 mm) - Optical Tube Length |
| Optical Tube Weight | 20 lb (9.07 kg) |
| Tripod and Pier Weight | 52 lb (23.59 kg) |
| EQ Mount Weight | 75 lb (34.02 kg) |
| Counterweight Bar | 5 lb (2.27 kg) |
| Counterweights | 1 x 22 lb |
| Warranty | Celestron 2 years limited warranty |
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