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About this product
- Big-aperture fully motorized GoTo Dobsonian reflector telescope locates and tracks any of over 42,000 celestial objects with the push of a few buttons!
- 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 system motors and hardware comes pre-installed on the Dobsonian base for swift and easy assembly
- 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 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 XT12g 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 XT12g let you aim the telescope manually - or endure the accidental bump - without losing orientation for accurate, automated GoTo pointing!
Limited Warranty against defects in materials or workmanship for one year from date of purchase.
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"),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 the 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, Navigation knob, 1.25" Eyepiece adapter
Other features - Full Go-To control
Warranty -One year