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Celestron paired a Go-To mount with a large-aperture OTA to produce this Advanced VX 8 200mm f/5 Go-To Reflector Telescope. Pairing the fully motorized and computer-controlled mount with a large Newtonian reflector scope produces an observation platform optimized for deep-space viewing and astroimaging. Its optical tube features an 8" (200mm) parabolic mirror to draw in copious amounts of light - even light from distant deep space objects like binary stars, galaxies, and nebulae. Its fast f/5 focal ratio allows for short exposure times, which means more images can be captured for later stacking in post. A large-drawtube 2" focuser allows the use of larger wide-field eyepieces or large imaging sensor cameras to be used without vignetting, and an included reducer adapter lets user install smaller 1.25" accessories like the included eyepiece.
The OTA attaches to the motorized equatorial mount via a Vixen-style dovetail plate and saddle for fast assembly and breakdown. Outfitted with dual-axis low-cog DC servo motors and digital encoders, the mount head moves and tracks objects with high-precision and almost no vibrations to ensure clear views. Its wide 7-77° latitude range and head design allows it to track below the meridian line to allow you to start observing earlier if its set up on a hill or deck, and will clear the motors to avoid having to perform a meridian flip when it's tracking low in the sky. Guiding the mount is the NexStar+ computer hand controller. Packed with more than 40,000 objects, it has multiple alignment procedures to get users observing faster, with multiple automatic tracking rates to accurately follow fast-moving close objects like the Moon and planets and slower deep space celestial bodies. With features such as user-defined objects, customizable guided tours, and expanded info on over 500 objects in its database even novice users can quickly learn about the Universe.
Optical Tube Assembly
- 200mm (8") aperture
- Fast f/5 focal ratio
- 1000mm focal length
- Newtonian reflector optical configuration
- Fully coated optics increases light transmission, and improves contrast and color rendition
- Resolution: Rayleigh: 0.7 arcsec; Dawes Limit: 0.58 arcsec
- Secondary mirror obstruction: 28"; 30° by diameter; 7.81° by area
- Sturdy rack-and-pinion focuser
- 2" focuser drawtube helps to eliminate vignetting when using wide-field eyepieces for visual observations, or large imaging sensor cameras for astrophotography
- Dovetail plate for easy attachment to mount head
NexStar+ Hand Controller
- 4-line, 18-character LCD display
- Pre-loaded 40,000 object database
- Intuitive menu-driven user interface
- Nine selectable slew speeds: 2x, 4x, 8x, 16x, 32x, 0.3°/sec, 1.0°/sec, 2°/sec, 4°/sec
- Multiple alignment procedures: 2-Star All-Star Polar Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
- Precise All-Star Polar Alignment with 2-Star alignment mode eliminates the need for conventional and time-consuming Polar Alignment
- Sky Tour mode: Identifies the best objects in the sky based on the current date, time, and location, and automatically slews to those objects
- Multiple tracking rates: Sidereal, Solar, and Lunar
- Permanent periodic error correction (PPEC) allows users to program out tracking errors for more accurate tracking over time
- Backlash compensation trains out play in drive gears for more accurate tracking
- Use in the Northern or Southern hemispheres
- LED-backlit interface buttons
- RS-232 serial communication port for remote PC control
- Dedicated Autoguider communication port
- Selectable languages: English, French, German, Italian, and Spanish
- Flash updateable operating system and database via the Internet
- Database:
- Solar system: Includes the Moon, sun, and planets
- Star catalogs: Lists of all the brightest stars, binary stars, variable stars, constellations and selected asterism
- Deep sky: Galaxies, Nebulae and Clusters, the complete Messier and select NGC objects, alphabetical list of all deep sky objects by their common name
- 100 user-defined objects for customization
- Enhanced information on more 200 objects including coordinates, history, and mythology
Mount and Tripod
- Advanced VX German Equatorial Mount:
- 30 lb payload capacity
- Dovetail saddle for easy attachment of OTA
- Dual-axis low cog DC servo motors with encoders provide smooth, low-vibration movement
- 7-77° latitude range for tracking passed meridian without requiring a meridian flip to avoid hitting counterweights or motors
- Includes 12" counterweight bar with two 12 lb counterweights
- Runs on 12 VDC car/vehicle power supply
- Tripod:
- Stainless steel legs
- 2" diameter upper legs
- 44-64" height adjustment range
Included Accessories
- Reducer Adapter:
- 2"-to-1.25" enables the use of smaller eyepieces and accessories in the drawtube
- Eyepiece:
- 20mm focal length produces 37.5x magnification
- 1.25" barrel diameter
- Accepts most astronomical eyepiece filters
- Fold-down rubber eyecup prevents peripheral light interference
- 6x30 Finderscope:
- Relatively low magnification provides a wide field of view for fast manual acquisition of subjects, and easy star-hopping navigation