User Manual for Celestron CGX 700 180mm f 15 Maksutov-Cassegrain Telescope Click to enlarge the picture
Contents of the user manual for the Celestron CGX 700 180mm f 15
- 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 CGX 700 180mm f 15 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 - Introducing the Celestron CGX Computerized German Equatorial Telescope Mount
Designed to give amateur astronomers and astrophotographers a near-research quality rig, the Celestron CGX 700 180mm f/15 Maksutov-Cassegrain Telescope is a powerful astronomical platform for all you stargazing and imaging needs. It combines a large-aperture catadioptric optical tube assembly (OTA) with the strong and stable CGX mount that work together to reveal stunning details of the moon and planets with the ability to resolve wispy nebula, fuzzy galaxies, and tight binary stars.The Maksutov design exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. This modified optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but the optical benefits, when coupled with the larger aperture and StarBright XLT optical coatings, make it more than capable for long-exposure photography techniques.The CGX GoTo equatorial mount is engineered to carry a hefty 55-pound payload—and with the OTA weighing under 20 pounds there is plenty of payload capacity for all your observation or imaging gear including large accessories like eyepieces, guidescopes, filter wheels, and piggy-backed gear. High-torque dual DC servo motors enable it to smoothly and accurately slew and track all night long. To provide a stable platform for the mount and OTA, a heavy-duty stainless steel tripod is included that sports large 2" legs and an accessory tray that doubles as a stabilizer.The brain of the whole system is the NexStar+ computer controller. Equipped with a database of 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog, it can also be programmed with up 100 custom user-defined objects with 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, expanded information on 200 popular objects, and multiple alignment options make the NexStar+ controller easy to use and invaluable to new users and experienced stargazers. - Optical Tube Assembly
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- 180mm (7") diameter aperture enables near- and deep-sky viewing without being prohibitively large or heavy for easy transport to viewing locations
- Long 2700mm focal length provides a high magnification potential
- Front convex meniscus lens corrects spherical and chromatic aberrations as well as comas (off-axis aberrations) across the entire field of view
- Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast
- Proprietary StarBright XLT fully multi-coated optical system
- Resolution: 0.64 arcsec (Rayleigh), 0.52 arcsec (Dawes)
- Secondary mirror obstruction: 40mm (1.57"), 22% by diameter, 5% by area
- Internal primary mirror focusing mechanism
- 2" visual back accepts larger eyepieces and accessories
StarBright XLT Coating System:- Multi-layer mirror coatings made from layers of aluminum, SiO2 (silicon dioxide), and TiO2 (titanium dioxide)
- Reflectivity is flat across the light spectrum, for both astrophotography/astro-imaging
- Multi-layer anti-reflective coatings made from layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide)
- High-transmission Water White glass corrector lens with 97.4% light transmission
- NexStar+ Hand Controller
- Features:
- Intuitive menu-driven user interface
- Nine Slew Speeds: 2x, 4x, 8x, 16x, 32x, 0.3°/sec, 1.0°/sec, 2°/sec, 4°/sec
- Multiple Tracking Rates: Sidereal, Lunar, and Solar
- Anti-Backlash Correction: Trains out intrinsic play in gears for smoother movement and tracking
- Permanent Periodic Error Correction (PPEC): Improves tracking precision for long-exposure astrophotography and imaging
Database:- 40,000-object database
- 100 user-defined objects for customization
- Filters for creating custom object lists
- Solar system: All seven planets plus the moon, sun, and Pluto
- Custom lists of all the brightest stars, double stars, variable stars, and asterisms
- Custom lists of all the best galaxies, nebulae, and clusters as well as the complete Messier catalog and select NGC objects
Functions:- All-Star Polar Alignment system enables the user to choose any bright star in the sky, not just the North (Pole) Star, and the system will calculate and assist in accurate polar alignment for better tracking during long-exposure astrophotography
- Alignment options: One- or Two-star, Solar system, Quick, and Last
- Sky Tour: Based on location, date, and time, the system shows the best objects in the sky and automatically slews to them
- Object Info: Provides useful information about the selected object such as magnitude and constellation; includes extended information about 200 popular objects
Physical characteristics::- 2-line, 16-character LCD window with red backlighting for comfortable viewing without affecting night-adjusted vision
- 19 function keys, backlit in red
- Micro-USB port: Connect to a computer, for use with software programs for point-and-click slewing capability and updating firmware via PC
- Mount and Tripod
- Mount:
- German equatorial mount is ideal for long-duration astrophotography
- 55 lb payload capacity provides ability to safely carry the included OTA plus a wide variety of observation or imaging gear
- Wide 3-65° latitude adjustment range allows it to track from horizon to horizon
- 20° of additional tracking past the meridian provides greater usability
- Dual-axis servo motors with optical encoders for smooth tracking and quiet operation
- High-torque motors provide smooth tracking and slewing for heavy OTAs
- Internal belt-drive system provides smooth, vibration-free tracking while minimizing backlash
- Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and improve gear meshing
- Limit sensors automatically shut off slewing or tracking before reaching the hard stop fail safe
- Internal hard stops for both axes prevent cable tension and tripod strike
- Autoguider port for making corrections while astroimaging
- Dual Vixen/Losmandy dovetail saddle, compatible with CG-5 and CGE bars
- Long clutch levers make tightening and loosening of clutches easier for manual movement
- Internal "Real Time Clock" keeps time and site information saved when power is turned off
- Internal cables/wires for snag-free operation
- Runs on included 12 VDC, 4A car/vehicle power supply
Tripod:- Stainless steel legs
- Adjustable-height 47.25-77.5", including head
- Heavy-duty 2" diameter legs reduce vibration
- Wide leg stance provides greater stability, especially on uneven ground
- Accessory/eyepiece holder tray that doubles as a leg spreader/lock
- Weight: 19.2 pounds
- Included Accessories
- Eyepiece:
- Large 2" nosepiece provides a wide field of view for comfortable viewing
- 28mm focal length delivers a low 96x magnification
- Threaded to accept most 2" eyepiece filters
Diagonal:- 2" nosepiece accepts larger eyepieces, 2" snout allows it to fit into larger focusers without needed adapters
- 90° angle places the user's head in a comfortable viewing position, especially when the OTA is aimed directly overhead
- Star configuration corrects view horizontally, but view remains reversed
Reducer Adapter:- Inserts into the visual back or diagonal to allow the use of the more common 1.25" eyepieces and accessories
- Simple drop-in design for fast changes from 2" to 1.25" gear
Finderscope:- Low 8x magnification preserves wide field of view to more easily find alignment or guide stars
- Large 50mm aperture helps to see dimmer objects and stars for more alignment options and finding guide stars for autoguiding during long-exposure astrophotography
- Includes mounting bracket
UPC: 050234120494 In the Box Celestron CGX 700 180mm f/15 Maksutov-Cassegrain Telescope CGX GoTo EQ Mount with Tripod 2" Star Diagonal with Reducer Adapter 2" 28mm Eyepiece 8x50 Finderscope with Bracket Limited 2-Year Warranty Table of Contents
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Technical parametersCelestron CGX 700 Specs | | | Optical Design | Maksutov Cassegrain | | Aperture | 180 mm / 7.1" | | Focal Length | 2700 mm | | Focal Ratio | f/15 | | Resolution | 0.64 Arcsec (Rayleigh)
0.52 Arcsec (Dawes) | | Focuser | Single-Speed Internal | | Eyepiece Barrel Diameter | 1.25", 2" | | Diagonal | 90
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