Used Advanced GT (CG-5) 8" SCT

  • Sale
  • $949.00
  • Regular price $1,599.00


Out of stock, but available to order.

Condition: Used 8" SCT optical tube and Advanced GT mount are both in very good condition.  We believe the combo is about six to eight years old. Current generation SCT with FastStar and latest Starbright XLT coatings.

In Store Only Purchase - No Shipping Boxes.

  • Advanced GT (CG-5) GoTo Equatorial Mount
  • 30 lbs payload capacity
  • 30,000 Object Database
  • 8" Schmidt-Cassegrain Optical Tube Assembly 
  • 2032 mm focal length (f/10)
  • 25 mm eyepiece included (81x)
  • Visual back allows for use with 1.25" accessories
  • 6x30 finderscope to help accurately find objects
  • Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
  • Includes dovetail rail compatible with CG-5 Advanced Series mount
  • Fastar compatible

    Mounted on the Advanced GT Series computerized mount, this telescope has some high performance software and hardware features. Operated by our proven NexStar+ computer control technology, the telescope has a 40,000+ object database with 100 user-definable objects and expanded information on over 200 objects. 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 stars; solar system objects and asterisms.

    Using the RS-232 communication port on the hand control, you can control the telescope via your laptop and the flash upgradeable hand controls allow you to update your telescope's operating software via the Internet. An Autoguider port is also included for astrophotography. No matter at what level you are starting out, this precision instrument will satisfy your needs both visually and photographically.

    CG-5 Mount - Precision engineered for stability
    The German Equatorial mount has precision worm gears on both axes for extremely smooth stability. The key element that makes this system the most stable in its class is the heavy-duty tripod with larger and more substantial legs that offer excellent damping characteristics for more stable views. The CG-5 also has a convenient latitude scale for easier alignment and an optional polar finder scope for the ultimate in precision alignments

    Aperture (mm) 203.2 mm (8 in)
    Dovetail Compatibility CG-5 Mount
    Finderscope 6x30
    Focal Length 2032 mm (80 in)
    Focal Length of Eyepiece 1 ... 25 mm (0.98 in)
    Focal Ratio 10
    Highest Useful Magnification 480 x
    Light Gathering Power (Comp... 843 x
    Limiting Stellar Magnitude 14
    Lowest Useful Magnification 29 x
    Magnification of Eyepiece 1 81 x
    Optical Coatings StarBright XLT
    Optical Design Schmidt-Cassegrain

    Optical Tube Length 17 in (432 mm)
    Optical Tube Weight 12.5 lbs (5.67 kg)
    Resolution (Dawes) 0.57 arc seconds
    Resolution (Rayleigh) 0.69 arc seconds
    Secondary Mirror Obstructio... 9.77%
    Secondary Mirror Obstruction 2.5 in (64 mm)
    Star Diagonal 1.25
    Weight of Counterweight 1 counterweight, 11 lbs
    Slew Speeds 3 Degrees/second max
    Tracking Rates Sidereal, Solar and Lunar
    Tracking Modes EQ North
    Alignment Procedures AutoAlign, 2-Star Alignment, Quick Align
    Communication Ports RS-232 communication port on hand control
    NexStar+ Computer Hand Control Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
    Database 40,000 objects, 100 user defined programmable objects.Enhanced information on over 200 objects
    SKU: U91020-XLT
    Barcode: 050234102094