SkyQuest XT12g GoTo Dobsonian Telescope [10136]

Orion   ——   SKU: 10136
$2,124.00 CAD
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Product Info


About the Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope...

Orion Dobsonian Telescopes 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 Dobsonians on the market - have had in common: you pushed the telescope to your observing target by hand.


Until now.


Orion is pleased to herald another giant leap in Dobsonian evolution with the introduction of the Orion Telescope SkyQuest XTg series of fully motorized GoTo Dobsonian telescopes. Now, pointing an Orion Dobsonian Telescope to even the most elusive of NGC curiosities is as easy as pushing a button or two on the XTg Dobsonian telescope''s illuminated computerized GoTo hand controller. High-torque servo motors guided by two pairs of high-resolution encoders then slew the Orion Telescope right to your object of interest - any of over 42,000 objects in the computerized 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 Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope automatically tracks the celestial object''s apparent motion, keeping it centered in the telescope eyepiece while you savor the view. Any amateur astronomer who has ever manually tracked a night-sky object with a Dobsonian telescope will greatly appreciate the benefit of this convenient and precise tracking system. What''s more, the closed-loop electronics of the XT12g Orion Dobsonian Telescope let you move the telescope manually - or endure the accidental bump - without losing orientation for accurate, automated GoTo pointing!


The Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope combines GoTo pointing convenience with excellent portability and an affordable price. It features a 305mm (12") aperture, 1500mm focal-length parabolic mirror (f/4.9) made from low-thermal-expansion optical glass, with enhanced reflectivity (94%) aluminum coatings for high-definition images. The mirror is center marked to make alignment of the Orion Telescope optics (also called collimation) easier and more precise. The optical tube comes equipped with an accurate dual-speed 2" Crayford focuser complete with an 1.25" adapter for use with both 2" and 1.25" telescope eyepieces. The 11:1 fine focus knob ensures that you''ll quickly find that ultra-sharp focus point that makes your target object pop with dazzling clarity! The Orion Dobsonian Telescope''s modern open mirror cell design facilitates efficient cooling of the primary mirror to ambient temperature so you can spend more time viewing, and less time waiting for temperature equilibration. The mirror cell also features threaded holes for mounting an optional cooling accelerator fan, for even faster equilibration.


The Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope comes with all optical encoders, drive motors, and gears pre-installed, making assembly a breeze. The Orion Telescope optical tube drops into the GoTo base on a dovetail trunnion and conveniently locks in place with a single hand knob. A simple two-star alignment procedure is all it takes to orient the Orion Dobsonian 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 pop the Orion Telescope optical tube off the Dobsonian base for easy transport or storage. Handles on the base''s front and side panels make it easy to lift and carry.


A thorough set of standard Orion Telescope Accessories packaged with the Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope include an Orion EZ Finder II reflex sight, removable eyepiece rack with holes for one 2" and three 1.25" telescope eyepieces, hand controller mounting bracket, quick collimation cap, a wide-field 28mm DeepView 2" eyepiece, and a 12.5mm illuminated-crosshair Plossl eyepiece (1.25") which enables ultra-precise GoTo system alignment. The XT12g Orion Dobsonian Telescope drive motors require power from a 12-volt DC field battery or AC adapter, sold separately. A DC cable is included with telescope that has an auto-lighter style plug on one end for connecting to your 12-volt DC power source, and a coaxial plug on the other end that fits the power jack installed on the Orion Telescope Dobsonian base.


You''re going to love plying the night skies with the Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope. The computerized GoTo hand controller''s softly red-illuminated keypad lets you select an object from a variety of intuitive menus, or take a tour of the best telescope objects in the sky at any time of year. The time you''ll save by not having to manually search for your targets will allow you to kick back, relax, and spend more time enjoying the magnificent views through the Orion Dobsonian Telescope eyepiece.


If you are an intermediate or avid deep-sky hunter who wants a big-aperture telescope but not the high price tag, an Orion Dobsonian Telescope is the way to go. And now, finally, you can have one that offers the convenience of motor driven GoTo pointing - to anything in the heavens you''d like to see! Make your next telescope the Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope!


Don''t forget... We carry many fine Orion Telescope Accessories, including Orion CCD Cameras and Orion Telescope Mounts!


Note: Orion XTg GoTo Dobsonians are not compatible with the Orion IntelliScope Computerized Object Locator.



Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope Features...


  • Innovative GoTo Dobsonian reflector telescope with fully motorized object location and automatic tracking of over 42,000 celestial wonders!



  • 12" aperture reflector optics gulp up light from the night sky for beautiful views of galaxies, nebulas, and star clusters as well as the planets and Moon



  • 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!


Orion SkyQuest XT12g Computerized GoTo Dobsonian Telescope Specifications...

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 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: 43x

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: 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: 58.3 in.

Weight, optical tube: 48.9 lbs.

Weight, mount/tripod: 52.9 lbs.

Weight, fully assembled: 101.8 lbs.

Additional included accessories: Eyepiece rack, Collimation cap

Other features: Navigation knob, 2" dual-speed Crayford, Full Go-To control

Warranty: One year

Orion Product Number: 10136