User Manual for Celestron CPC 925 GPS 235mm f 10 Schmidt-Cassegrain GoTo Telescope Click to enlarge the picture
Contents of the user manual for the Celestron CPC 925 GPS 235mm f
- Product category: Catadioptrics (Cassegrains) Celestron
- Brand: Celestron
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Celestron Catadioptrics (Cassegrains)
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User manual for the Celestron CPC 925 GPS 235mm f contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Celestron product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Celestron user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Celestron product will considerably shorten its lifespan!
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Product description Representing the mid-range aperture in the series and combining light-gathering power with ease of use, the Celestron CPC 925 GPS (XLT) 235mm f/10 Schmidt-Cassegrain GoTo Telescope provides users with a complete rig for near- and deep-space observation and astrophotography. Optically, it features a Schmidt-Cassegrain light path consisting of a corrector plate, a spherical primary mirror, and a secondary mirror. Complementing the optical system is the proprietary StarBright XLT optical coating system that improves light transmission and reflectivity across the entire visual spectrum. The combination of optical components and the StarBright XLT system produces bright and clear high-resolution images with true color rendition across the entire field of view with minimal distortion, aberrations, or off-axis comas.The brain of the entire system is the NexStar+ computer controller. Equipped with a database of over 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog, it can also be programmed with up to 100 custom user-defined objects and have filters added for custom object lists. Its intuitive menu-driven user interface provides the power to observe the heavens with nine slew speeds and three tracking rates, plus anti-backlash compensation and Permanent Periodic Error Correction (PPEC) for smoother movements in the motors and improved tracking over time. Features such as guided tours, extended information on 200 popular objects, and multiple alignment options make the NexStar+ controller easy to use and invaluable to new users and experienced stargazers.The optical tube is outfitted with a standard 1.25" visual back to make it easier to find eyepieces, accessories, and imaging gear. For visual observations, a 1.25" star diagonal is included along with a 40mm Plössl eyepiece that yields 59x magnification. The motorized dual-tine fork mount has dual-axis servo motors that provide precision movements with minimal vibration and a high resolution. It also has an integrated 16-channel GPS receiver that sends information to the hand controller and requires limited input from the user. A heavy-duty stainless steel tripod helps reduce vibrations to ensure clear resolution during observation or imaging sessions. - Optical Tube
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- 235mm (9.25") aperture
- f/10 focal ratio
- 2350mm focal length
- Schmidt-Cassegrain optical design
- Fine-annealed Pyrex glass reduces internal light loss to improve color, clarity, and sharpness
- StarBright XLT optical coating system
- Internal focusing mechanism
- Resolution: 0.59 arcsec (Rayleigh); 0.49 arcsec (Dawes)
- Secondary mirror obstruction: 3.35" (85mm); 36% by diameter; 13% by area
- StarBright XLT System
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- Maximizes light transmission through optical path
- Improves color rendition, contrast, sharpness, resolution, and brightness
- Broadband system provides flat wavelength transmission across the entire visual spectrum
- Multi-layer mirror coatings with layers of aluminum, SiO2 (quartz), and TiO2 (titanium dioxide)
- Multi-layer anti-reflective corrector plate coatings with layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide); hafnium has a wider band-pass than the commonly used titanium
- High-transmission water white glass corrector plate limits light loss due to internal absorption
- NexStar Hand Controller
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- 40,000+ object database
- 100 user-defined programmable celestial or terrestrial objects
- Expanded information on over 200 most popular objects including history, facts, and mythology
- Nine slew speeds: 3°/sec, 2°/sec, 0.5°/sec, 64x, 16x, 8x, 4x, 1x, 0.5x
- Three tracking rates: Sidereal, Solar, Lunar
- Tracking modes: Alt-Azimuth, Equatorial North, Equatorial South
- Multiple alignment procedures: Sky Align, Auto Two-Star, Two-Star, Solar System, EQ North, and EQ South
- Tour Mode: System seeks out the best objects for the date and time and automatically slews to them
- Constellation Tour: Takes the user on a tour of the best objects within a specific constellation
- Identify Mode: Use to identify an unknown object in the field of view or to find other celestial objects that are close to where the user is viewing
- Anti-backlash compensation: Trains out the intrinsic play between gears for more precise slewing and tracking
- Permanent Periodic Error Correction (PPEC): System learns its internal tracking errors and improves over time for more precise tracking, requiring fewer corrections
- Built-in instructions guide users through the alignment procedures
- 2-line, 16-character LCD display with 19-button fiber-optic backlit LED keypad
- RS-232 comm port
- Flash updatable via Internet
- Database Details:
- Complete NGC catalog: 7840 objects
- Complete Messier catalog: 110 objects
- Complete IC catalog: 5386 objects
- Complete Caldwell catalog: 109 objects
- 2712 Abell galaxies
- Solar system objects including the Sun, Moon, and planets
- 20 of the most popular asterisms
- 25 select CCD imaging objects
- 29,500 select SAO stars, double stars, and variable stars
- CPC Mount and Tripod
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- Mount:
- Dual-tine fork; cast aluminum
- Dual-axis DC servo motors with optical encoders to improve tracking and GoTo precision
- R.A. and declination 5.625" aluminum worm gears; 180-tooth brass worm wheel
- 9.8" azimuth bearing
- Internal 16-channel GPS receiver sends date, time, location information to hand controller, requiring no input by user
- Altitude and azimuth manual clutches allow the mount to be moved even with the power off
- Ports: Autoguider, 2 x auxiliary, PC interface
- Hand controller holder moves with mount to prevent cord wrap during long-duration observation or astrophotography sessions
- 9-15 VDC power requirement
- Tripod:
- Adjustable height
- 2"-diameter stainless steel legs
- Accessory tray for holding eyepieces, filters, etc.
- Center support bracket locks legs in place to add stability and reduce vibrations
- Weight: 19 pounds
- Included Accessories
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- Eyepiece:
- 1.25" barrel diameter
- Accepts most 1.25" astronomical filters
- 40mm focal length produces 59x power
- 41' field of view at 1000 yards
- 0.78° angle of view
- Diagonal:
- 90° angle places head in comfortable viewing position
- 1.25" snout and holder
- Star configuration corrects view horizontally but not vertically
- Finderscope:
- Low 8x magnification ensures a wide field of view for easier alignment
- 50mm objective allows users to see dimmer objects to have more alignment star choices
- Includes quick release bracket
- Power Adapter:
- 9-15 VDC
- Car/vehicle port plug
UPC: 050234107419 In the Box Celestron CPC 925 GPS (XLT) 235mm f/10 Schmidt-Cassegrain GoTo Telescope 40mm Eyepiece 90° Star Diagonal 8x50 Finderscope with Bracket Stainless Steel Tripod with Tray 12 VDC Car/Vehicle Power Adapter Limited 2-Year Warranty Guides & Manuals Table of Contents
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Technical parametersCelestron CPC 925 Specs | Optical Design | Schmidt-Cassegrain | | Aperture | 235mm /9.25" | | Focal Length | 2350mm | | Focal Ratio | f/10 | | Eyepiece Barrel Diameter | 1.25" | | Diagonal | 90°, star
1.25" snout and eyepiece holder | | Finderscope | 8x50
Quick release bracket | | Tripod | Stainless steel
2" diameter legs
Adjustable-height | | Mount Type | Motorized dual-tine alt-az fork mount | | Power Source | 12VDC car/vehicle power | | Optical Tube Length | 22.0" / 55.9 cm | | Weight | OTA: 58.0 lb / 26.3 kg
Tripod: 19.0 lb / 8.6 kg | | | | Package Weight | 111.5 lb | | Box Dimensions (LxWxH) | 53.0 x 37.0 x 18.0" |
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