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 28 of 82 
Orion Telescopes
Intermediate
Orion SkyQuest XT8g Computerized GoTo Dobsonian Telescope
$1,049.99
3 easy payments of $350.00
With payment plan
 
Accepted Payment
In Stock
  • Innovative GoTo Dobsonian reflector telescope with fully motorized object location and automatic tracking of over 42,000 celestial wonders!
  • 8" aperture reflector optics reveal detailed views of the planets and Moon, as well as deep-sky objects such as nebulas, galaxies, and sparkling star clusters
  • All GoTo motors, gears, and encoders come pre-installed on the Dobsonian base boards so assembly is quick and easy
  • Requires 12V power supply (sold separately) for motorized operation
  • Includes 2" dual-speed (11:1) Crayford focuser, 28mm 2" DeepView eyepiece, 12.5mm 1.25" illuminated crosshair Plossl eyepiece, EZ Finder II reflex sight, eyepiece rack, collimation cap, Starry Night software, and more!


Learn more
Item #  10134

Orion Dobsonians have always been known for superb optical and mechanical quality, wonderful ease of use, and remarkably affordable prices. One other thing they - and almost all other Dobs on the market - have had in common: you pushed the telescope to your observing target by hand.

Until now. Orion has heralded another giant leap in Dobsonian evolution with the SkyQuest XTg series of fully motor driven GoTo Dobsonians. Now, pointing a Dob to even the most elusive of NGC curiosities is as easy as pushing a button or two on the XTg Dobsonian's illuminated GoTo hand controller. High-torque servo motors guided by two pairs of high-resolution encoders then slew the telescope right to your object of interest - any of over 42,000 objects in the GoTo controller's database. No more nudging the telescope tube continuously to keep the object from drifting out of the field of view, either. The XT8g automatically tracks the object's motion, keeping it centered in the eyepiece while you savor the view. What's more, the closed-loop electronics of the XT8g let you aim the telescope manually - or endure the accidental bump - without losing orientation for accurate, automated GoTo pointing!

GoTo Dob Chart

The SkyQuest XT8g combines GoTo pointing convenience with excellent portability and an amazingly affordable price. It features a 203mm (8") aperture, 1200mm focal-length parabolic mirror (f/5.9) made from low-thermal-expansion optical glass. Enhanced reflectivity (94%) aluminum mirror coatings yield bright, high-definition images. The 8" primary mirror is center-marked to make precise alignment of the optics (collimation) easier to achieve. The reflector telescope's open mirror cell design facilitates efficient cooling of the mirror to ambient temperature. To cool down the telescope optics even more quickly, the XT8g mirror cell features threaded holes that accept an optional cooling accelerator fan (sold separately).

Altitude motor

Enjoy computerized object location and motorized tracking with the SkyQuest XT8g GoTo Dob.

The sturdy base of the XT8g GoTo Dobsonian comes with both altitude and azimuth motors pre-installed for fast and easy assembly. Once aligned, the fully motorized XT8g will locate, center, and track any of the more than 42,000 celestial objects within its computerized database. Closed-loop GoTo electronics allow manual aiming of the telescope without losing GoTo alignment so you can save power and observe efficiently.

GoTo Hand Controller

Let the Orion SkyQuest XT8g take your family on a guided tour of the night sky.

The SkyQuest XT8g GoTo Dobsonian telescope's hand controller features a softly red-illuminated keypad which lets you select a celestial object to explore using a variety of intuitive menus, or you can use the Tour function to explore the best objects in the sky at any time of year. The time you'll save by not having to manually search for your targets or fuss with star charts will allow you to kick back, relax, and spend more time enjoying the magnificent views through the eyepiece.

Focuser

Dial-in detailed views with the XT8g telescope's dual-speed 2" Crayford focuser.

The XT8g optical tube comes equipped with a smooth, dual-speed 2" Crayford focuser (with 1.25" adapter). The dual-speed, 11:1 fine-focus ratio makes it easy to obtain finely detailed views of any celestial denizen. Both 2" and 1.25" telescope eyepieces can be used, thanks to the included 1.25" step-down adapter. With its Crayford mechanism, focus adjustments are silky smooth and free of backlash, even when using heavier 2" oculars.

28mm ep

Enjoy wide field views of the night sky with the included 28mm DeepView 2" eyepiece.

You'll love exploring deep sky delicacies with the SkyQuest XT8g and included 28mm DeepView eyepiece. Its 56° apparent field of view provides a nice, wide window of sky to explore. The telescope's extra-large 12" aperture will collect a lot of light for bright views in the 2" eyepiece. With multi-coated optics and long 20mm eye relief, the 28mm DeepView is a great eyepiece for comfortable observations of the night sky.

12.5mm EP

Use the 12.5mm Illuminated Reticle eyepiece for easy and accurate GoTo alignment.

The included 1.25" 12.5mm Plossl eyepiece features an internal crosshair reticle pattern that can be illuminated for easy visibility at night. Using this powerful eyepiece to precisely center alignment stars helps improve the accuracy of the XT8g GoTo system for optimized object location and motorized tracking. The LED-illuminated double crossline reticle features adjustable focus and brightness.

The XT8g telescope optical tube drops into the Dobsonian base on a dovetail trunnion and locks in place with a single hand knob. A simple two-star alignment is all it takes to orient the telescope to the sky for GoTo operation. Then let the fun begin! When you're ready to call it a night, just loosen the knob and lift the tube off the base for easy transport or storage. Handles on the Dobsonian base's front and side panels make it easy to lift and carry, whether you're going from car to field, or from house to backyard.

The Orion SkyQuest XT8g GoTo Dobsonian also includes an EZ Finder II reflex sight, eyepiece rack for one 2" and three 1.25" eyepieces, hand controller bracket, quick collimation cap, and a digital download insert for Starry Night SE astronomy software. The XT8g Dobsonian requires power from a 12-volt DC field battery or AC adapter, sold separately. A DC cable is included that has a car lighter style plug for connecting to your 12-volt DC power source, and a coaxial plug for the power jack on the Dobsonian base.

If you enjoy hunting down views of elusive deep-sky objects and want a big telescope without a high price tag, a Dobsonian reflector is the way to go. And now, finally, you can have one that offers the convenience of motor driven accurate GoTo pointing - to anything in the heavens you'd like to see! Make your next telescope the Orion SkyQuest XT8g GoTo Dobsonian reflector!

Meets or exceeds all California State Environmental Quality & Safety Regulations (CARB 93120 Phase 2 Compliant).

Warranty

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-676-1343.

Warning

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Brighter deep sky
  • Best for imaging
    Lunar & planetary
  • User level
    Intermediate
  • Optical design
    Reflector
  • Optical diameter
    203mm
  • Focal length
    1200mm
  • Focal ratio
    f/5.9
  • Optics type
    Parabolic
  • Glass material
    Low thermal expansion borosilicate glass
  • Eyepieces
    DeepView 28.0mm (2"),Plossl 12.5mm (1.25")
  • Magnification with included eyepieces
    42x, 96x
  • Resolving power
    0.57arc*sec
  • Lowest useful magnification
    29x
  • Highest useful magnification
    300x
  • Highest theoretical magnification
    406x
  • Limiting stellar magnitude
    14.2
  • Optical quality
    Diffraction limited
  • Finder scope
    EZ Finder II
  • Focuser
    2" dual-speed Crayford
  • Secondary mirror obstruction
    47mm
  • Secondary mirror obstruction by diameter
    23%
  • Secondary mirror obstruction by area
    5%
  • Mirror coatings/over-coatings
    Aluminum & Silicon Dioxide
  • Mount type
    Dobsonian
  • Astro-imaging capability
    Simple moon shots
  • Motor drive compatibility
    Clock drive included
  • Computerized compatibility
    Go-To included
  • Alignment procedure
    2-Star Alignment, Brightest Star
  • Number of objects in database
    42,000+
  • Tracking rates
    Sidereal, Solar and Lunar
  • Motor type
    DC Servo motors with encoders
  • Bearing material
    AZ: Thrust needle bearings ALT: Ball bearings
  • Power requirement
    12-volt DC - 2A (tip positive)
  • Available ports
    RS-232, Aux
  • Tube material
    Steel
  • Tripod material
    Wood
  • Length of optical tube
    44.5 in.
  • Weight, optical tube
    19.7 lbs.
  • Weight, mount/tripod
    32.7 lbs.
  • Weight, fully assembled
    52.4 lbs.
  • Additional included accessories
    Eyepiece rack, Collimation cap
  • Other features
    Navigation knob, 2" dual-speed Crayford, Full Go-To control
  • Warranty
    One year

8" aperture reflector telescope Optical Tube Assembly
Dust cover
28mm Deep View telescope eyepiece, 2" barrel diameter
12.5mm Illuminated Plössl telescope eyepiece, 1.25" barrel diameter
EZ Finder (with bracket)
Collimation cap
Eyepiece rack
2 Eyepiece rack wood screws (20mm long, color black)
2 Hex keys (2mm, 3mm)
Tube to base securing knob
Hand controller holster (with 2 assembly screws)
Left panel (with altitude motor pre-installed)
Right panel
Front brace
Ground baseplate assembly (with azimuth motor pre-installed
6 Base assembly wood screws (coarse thread, 47mm long)
8 Base assembly machine screws (fine thread, 60mm long)
3 Handles
6 Handle mounting screws (hex head, 25mm long)
2 Hex keys (size 4mm, 6mm)
3 Plastic feet
3 Feet wood screws (1" long)
3 Rubber plugs for feet
Hand controller
Hand controller cable
AZ motor connection cable
RS-232 computer cable
DC power cable with auto-lighter plug
Primary mirror
Mirror cell
3 Collimation knobs
3 Nylon washers (3/4" outer diameter)
3 Springs
Starry Night Special Edition astronomy software

Orders received by noon Pacific Time for in-stock item the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.

Standard Delivery: $0.00
Standard Delivery to Canada: $80.00
3 Day Delivery: $232.00
2 Day Delivery: $232.00
Next Day Delivery: $284.00

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