Current Price: $1709.95
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Celestron EdgeHD 8" SCT (CG-5) Optical Tube Assembly
Brand New in Original Packaging
SKU: 91031-XLT-2_FC


    • OTA produces aberration-free images with pinpoint stars
    • Fastar/Hyperstar compatible
    • Large base castings
    • Improved stability under heavier loads
    • PEC eliminates recurring track errors from the worm gear
    • Motors offer improved torque and tracking performance
    • More rigidity, less flexure and improved aesthetics
    • Allows viewing or imaging across the meridian
    • Can be used between 7 – 77° latitude
    • Features NexStar+ and All-Star Polar Alignment

Product Description

Ready to see the moon and more? Stargazing is fun but why don't you take it up to the next level and become an expert in astronomy. The Celestron Advanced VX 8" EdgeHD SCT GoTo Telescope allows you to have your very own backyard observatory. Enjoy the stars.

EdgeHD 8" Optical Tube Assembly

Celestron’s revolutionary aplanatic EdgeHD optics reduce off-axis star coma while providing an astrograph-quality flat focal plane all the way to the edge of the field of view. The result is a focal plane more than three times flatter than a standard Schmidt-Cassegrain telescope and dramatically flatter than other competing coma-free designs.

Additionally, EdgeHD is Fastar/Hyperstar compatible, giving imagers the option to shoot at ultra-fast f/2. Superior edge performance not only creates rounder, more pleasing stars, but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. No matter which configuration you choose, EdgeHD technology gives you pinpoint stars all the way to the edge of the CCD sensor.

Advanced Computerized GoTo Mount

Celestron's Advanced VX Mount is an integrated telescope support, alignment and guiding system and was specifically designed to provide optimum imaging performance for smaller telescopes. This mount packs some of the features found on more sophisticated German Equatorial mounts, minus the added bulk or cost. Now your smaller telescope can take advantage of All-Star Polar Alignment and autoguider support. Advanced VX features significantly larger base castings than the previous design, improving stability under heavier loads.


To enhance tracking performance, the mount features permanently programmable Periodic Error Correction (PEC). PEC eliminates recurring track errors from the worm gear to prevent trailing and improve photographs. You’ll also be able to track through long exposures using the PEC. The Advanced VX improved motors offer more torque and can handle slight load imbalances with ease.


An updated industrial design offers more rigidity, less flexure and improved aesthetics. The new design allows viewing or imaging across the meridian without interference from the motors housings, so you can seamlessly image the best part of  the night sky. With the enhanced latitude range, the telescope can be used between 7 – 77° latitude allowing for a larger range of view. The improved electronics contain increased memory for future expansion.


Start observing celestial objects with the push of a button on the NexStar+ Hand Control. It's pre-loaded with a huge database of over 40,000 celestial objects. Automatically slew to objects in a variety of catalogs, including the Messier, NGC, Caldwell, and SAO brightest stars. NexStar+ hand control offers multiple language programming (English, French, Italian, German, Spanish). For enhanced pointing and tracking accuracy, the mount features Celestron's All-Star Polar Alignment. This system uses multiple guide stars to assist tracking across the night sky while keeping the optical tube parallel to the Earth's axis of rotation.


What's in the Box

    • EdgeHD 8" Optical Tube Assembly
      • Celestron 8" EdgeHD Telescope OTA with StarBright XLT Coatings
      • 9x50 Finderscope
      • 40 mm Plossl 1.25" Eyepiece
      • 1.25" Star Diagonal
    • Celestron Advanced Computerized GoTo Mount
      • Advanced VX Computerized Mount
      • Adjustable Stainless Steel Tripod
      • 1 x 12 lb. Counterweight
      • DC Power Adapter Cable
      • NexStar+ Hand Control


  • Optical Tube Info:

    • Optical Design: EdgeHD
    • Aperture (mm): 203 mm (7.99")
    • Focal Length: 2032 mm (80")
    • Focal Ratio: 10
    • Focal Length of Eyepiece 1 (mm): 40 mm (1.57")
    • Magnification of Eyepiece 1: 51x
    • Finderscope: 9x50
    • Highest Useful Magnification: 480x
    • Lowest Useful Magnification: 29x
    • Limiting Stellar Magnitude: 14
    • Resolution (Rayleigh): 0.69 arc seconds
    • Resolution (Dawes): 0.57 arc seconds
    • Light Gathering Power (Compared to human eye): 841x
    • Secondary Mirror Obstruction: 64 mm (2.5")
    • Secondary Mirror Obstruction by Diameter: 31%
    • Secondary Mirror Obstruction by Area: 9.77%
    • Optical Tube Length: 432 mm (17")
    • Optical Tube Weight: 13 lbs (5.9 kg)

    Mount Info:

    • Telescope Type: Computerized (GOTO)
    • Tripod: Adjustable, Stainless Steel
    • Tripod Leg Diameter: 2"
    • Tripod Weight: 18 lbs (8.16 kg)
    • Mount Height (Max): 1626 mm (64")
    • Mount Height (Min): 1118 mm (44")
    • Weight of Counterweights: 1 x 12 lbs




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