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 45 of 67 
Orion Telescopes
Advanced
Orion SkyQuest XX12g GoTo Truss Tube Dobsonian Telescope
$1,999.99
3 easy payments of $666.66
With payment plan
 
Accepted Payment
Expected Ship Date: 08/04/2017

  • An elegant combination of three astronomical attributes: powerful optical performance, convenient collapsible portability, and modern motorized GoTo and tracking technology
  • Big 12" aperture reflector optics bring in a huge amount of light from the night sky for great views of nebulas, galaxies, star clusters and solar system targets like the Moon and planets
  • Orion-designed collapsible GoTo Dobsonian base AND 8-pole truss optical tube both break down into easily manageable components for transport in virtually any car
  • Closed-loop electronics forgive accidental bumps, nudges, and even manual repositioning without losing alignment of the GoTo system and heavy-duty clutches allow independent adjustment of motion to desired level of resistance in both axes.
  • Includes a 28mm DeepView 2" eyepiece, 12.5mm illuminated Plossl 1.25" eyepiece, eyepiece rack, EZ Finder II reflex sight, 2" extension tube, reflector collimation cap, 12V DC power cable, Cooling fan and more!


Learn more
Item #  10148

Our most advanced 12" Dobsonian reflector telescope is geared up for extensive exploration of the night sky. With fully motorized GoTo and tracking drives providing automated pointing to any of the over 42,000 celestial objects in the hand controller's database, the Orion SkyQuest XX12g GoTo Truss Tube Dobsonian is truly a telescope that will keep you up at night - in a good way.

Orion designed the XX12g's optical tube and base with portability in mind. The truss tube can be divided into a small front tube section including the secondary mirror and focuser, rear tube section housing the primary mirror cell, and the four truss-pole pairs. The XX12g telescope optical tube employs a rigid 8-pole truss design that virtually eliminates flexure observed in 6- and 3-pole collapsible tube designs. Stability of the assembled XX12g Dobsonian base is enhanced by its 1" thick composite wood base panels, which are laminated with water-resistant black melamine. We've increased the portability of the XX12g compared to its XX12i IntelliScope-equipped counterpart by making the base collapsible for easy no-tools-required disassembly into four separate, smaller pieces for easier transport. The separated component pieces of the XX12g tube and base can be stored without taking up an excessive amount of space in your home, and can be transported in virtually any standard-sized car to your favorite dark-sky observing site.

Truss Tube Dob Chart

The computerized XX12g GoTo system automatically slews the telescope to any of the over 42,000 celestial objects you choose from the hand controller's intuitive menus, once a simple alignment process is completed. Altitude and azimuth motors automatically track the motion of the target object so it stays put in the eyepiece field of view for extended visual study. For anyone who has spent an evening manually tracking objects with a Dobsonian this is a profound upgrade, and trust us, it was worth the wait. Forgiving of bumps and nudges, the XX12g features closed-loop electronics allowing manual repositioning, or slewing, of the telescope tube without losing alignment of the GoTo system. Redesigned heavy-duty clutches allow motion in both axes to be adjusted independently to desired level of resistance.

Collapsed Base

Collapsible Dobsonian base breaks down for easy portability and efficient storage.

Since its Dobsonian base can be separated into four pieces, the SkyQuest XX12g is a perfect telescope for on-the-go stargazers. GoTo and tracking motors are pre-installed on the base panels, making assembly and disassembly quick and easy. Once the tube and base are assembled, the reflector optical tube attaches to the base with a sturdy dovetail trunnion and locks securely in place with a single captive hand knob. Since all base and truss tube hardware is captive, you don't have to worry about leaving a screw behind after a long night of viewing in the field.

Alt Motor Housing

Heavy-duty clutches and forgiving closed-loop electronics make the XX12g a truly deluxe Dob.

Forgiving of accidental bumps, the XX12g's GoTo system features closed-loop electronics allowing manual repositioning or slewing of the telescope tube without losing alignment. In fact, depending on your preference you can choose to operate the telescope in either GoTo or auto tracking modes. Redesigned heavy-duty altitude and azimuth clutches allow motion in both axes to be adjusted independently to desired level of resistance.

Mirror Cell

Lightweight primary mirror cools quickly and gulps up light for big, bright views.

With 12" (305mm) of light gobbling aperture and a fast f/4.9 focal ratio, the XX12g is capable of providing clear, crisp and very bright views of the night sky. The 12"-aperture parabolic primary mirror is crafted from low thermal expansion glass for speedy ambient temperature acclimation and optimal visual performance. An included cooling accelerator fan helps hasten temperature acclimation of the primary mirror (requires 8 D-cell batteries, or other 12V power source, not included). The XX12g primary mirror features enhanced reflectivity aluminum coatings which provide 94% reflectivity with a protective quartz overcoat.

GoTo Hand Controller

Take a motorized tour of interesting celestial objects with the SkyQuest XX12g GoTo Dob.

Following a simple alignment process, the XX12g GoTo system can automatically slew the telescope to locate any of the over 42,000 celestial objects you choose from the hand controller's intuitive menus. Altitude and azimuth motors automatically track the target object so it stays put in the eyepiece field of view for extended visual study.

10148 focuser

Dial-in details with the XX12g telescope's dual-speed 2" Crayford focuser.

The dual-speed abilities of the 2" Crayford focuser with its 11:1 fine-focus ratio allows you to dial in precise details of any celestial denizen. Both 2" and 1.25" telescope eyepieces can be used, thanks to the included 1.25" step-down adapter. Thanks to its Crayford design, focus adjustments are silky smooth and free of backlash, even when using heavier 2" oculars. (Optional 35mm DeepView 2" eyepiece shown, sold separately.)

28mm DV 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 XX12g and included 28mm DeepView eyepiece. Its 56° apparent field of view provides a nice, wide window of sky to explore. With multi-coated optics and long 20mm eye relief, the 28mm DeepView is a great eyepiece to use for comfortable, expansive observations of the night sky.

12_5mm Ill Plossl

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 XX12g GoTo system for optimized object location and motorized tracking. The LED-illuminated double crossline reticle has adjustable focus and brightness.

A collimation cap, removable eyepiece rack, 12V DC power cable and RS-232 cable are also included.

A 12V power supply (sold separately) is required for use of the telescope's GoTo system and motors.

A specially designed Light Shroud is available (sold separately) for the Orion XX12g optical tube. A Light Shroud significantly enhances the viewing experience in a Truss Tube Dobsonian by blocking distracting peripheral light from entering the light path, optimizing contrast and brightness.

A custom Orion Padded Case Set (sold separately) is available for the XX12g Dobsonian optical tube. Each set of cases includes a padded case for the top tube section including a secondary mirror cover, a padded case for the bottom tube section, and a roll-up case to safely hold the truss-pole assemblies. An Orion Padded Case Set is the best way to preserve and protect your investment for years to come.

With the Orion SkyQuest XX12g GoTo Truss Tube Dobsonian telescope, you're amply equipped for big-aperture visual adventures, wherever you may roam.

Assembled weight (including accessories): 128.75 lbs. Assembled optical tube, 56"L x 14"W, 46.8 lbs. Bottom tube section, 26"L x 14"W, 32.2 lbs; top tube section, 8"L x 14"W, 9.0 lbs. Truss pole assemblies (4), 24"L x 4.6"W x 1.75"H. Total weight of 4 truss pole assemblies: 5.6 lbs. Base, 28"W x 33.5"H, 79 lbs. Accessories (EZ Finder II, 1.25" eyepiece, cooling fan, dust covers): 2.95 lbs. 12V battery pack included (requires 8 D-cells: not included) to power Cooling Accelerator Fan.

Media Buzz

Astronomy Now magazine, January 2015
"This is an optically fine telescope, companioned with a very robust mount. I thoroughly enjoyed using its very able GoTo system, which never failed."

"I have never enjoyed Copernicus in such high precision. Thank you, Orion."

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

WARNING! When using a truss tube Dobsonian telescope for solar observing, always use a Light Shroud and a properly sized solar filter. When you install the Light Shroud make certain there are no gaps between the Shroud and the telescope where direct sunlight can reach the telescope mirror. When a truss tube telescope (equipped with a solar filter but no Light Shroud) is pointing near (not at) the Sun, direct sunlight can hit the mirror and focus on the solar filter or other portions of the telescope. This can lead to eye injury or damage to the telescope. Using a Light Shroud protects your telescope from peripheral sunlight.

Before using any telescope for solar observing, make sure to install all dustcaps or other protective covers on all optical components such as finder scopes to keep sunlight from passing through them. Glancing through an uncovered optical system, even for an instant, can cause permanent eye damage. Always install protective caps on all optical instruments if left out during daylight hours. 

 

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
    Fainter deep sky
  • Best for imaging
    Lunar & planetary
  • User level
    Advanced
  • Optical design
    Reflector
  • Optical diameter
    305mm
  • Focal length
    1500mm
  • Focal ratio
    f/4.9
  • Optics type
    Parabolic
  • Glass material
    Low thermal expansion borosilicate glass
  • Eyepieces
    DeepView 28.0mm (2"),Plossl 12.5mm (1.25")
  • Magnification with included eyepieces
    54x, 120x
  • Resolving power
    0.38arc*sec
  • Lowest useful magnification
    42x
  • Highest useful magnification
    300x
  • Highest theoretical magnification
    610x
  • Limiting stellar magnitude
    15.1
  • Optical quality
    Diffraction limited
  • Finder scope
    EZ Finder II
  • Focuser
    2" dual-speed Crayford
  • Secondary mirror obstruction
    70mm
  • Secondary mirror obstruction by diameter
    23%
  • Secondary mirror obstruction by area
    5%
  • Mirror coatings/over-coatings
    Enhanced Aluminum & Silicon Dioxide
  • Mount type
    Dobsonian
  • Astro-imaging capability
    Simple moon shots
  • Computerized compatibility
    Go-To included
  • Alignment procedure
    2-Star Alignment
  • Number of objects in database
    42,000+
  • Bearing material
    AZ: Thrust needle bearings ALT: Ball bearings
  • Power requirement
    12-volt DC (tip positive)
  • Setting circles
    Electronic, via the hand controller
  • Available ports
    RS-232
  • Tube material
    Steel
  • Tripod material
    Wood
  • Length of optical tube
    58.3 in.
  • Weight, optical tube
    47.0 lbs.
  • Weight, mount/tripod
    79.0 lbs.
  • Weight, fully assembled
    128.8 lbs.
  • Additional included accessories
    Cooling accelerator fan included, 2" Dual-speed Crayford focuser w/ 1.25" adapter
  • Other features
    Closed loop servo drive GoTo system, Collapsible base for convenient transportaion, Large 8" altitude bearings w/ adjustable tension
  • Warranty
    One year

12" f/4.9 Truss Tube Reflector Telescope Optical Tube Assembly
Dust cover
28mm Deep View eyepiece, 2" barrel diameter
12.5mm Illuminated Plössl eyepiece, 1.25" barrel diameter
EZ Finder (with bracket)
Collimation cap
Eyepiece rack
2 Eyepiece rack wood screws (20mm long, color black)
4 Hex keys (2mm, 3mm, 4mm, 6mm)
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
3 Handles
6 Handle mounting screws (hex head, 25mm long)
3 Plastic feet
3 Feet wood screws (1" long)
Hand controller
Hand controller cable
AZ motor connection cable
RS-232 computer cable
Primary mirror
Mirror cell
3 Collimation knobs
Cooling fan
Extension tube, 2" diameter
12V DC power cable
Starry Night Special Edition astronomy software

Orders received by 1pm Eastern Standard 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: $175.00
3 Day Delivery: $409.00
2 Day Delivery: $409.00
Next Day Delivery: $492.00

SHIPPING RESTRICTIONS APPLY FOR THIS PRODUCT

This product is available to ship Standard delivery within the 50 US states and US territories/protectorates address. Delivery is not available to APO/DPO/FPO addresses . Delivery is available to Canada.

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