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ORION Telescopes - U.S.A.
YOU ARE HERE >> HOME | ORION TELESCOPES | ORION SkyQuest XT8 GoTo Dob Telescope

Orion SkyQuest XT8 Computerised GoTo Dobsonian Telescope
ORION INDIA SkyQuest D=203mm / F=1200mm Dobsonian Telescope
1,15,500 + 18% GST
Orion 90mm Refractor Telescope Orion 90mm Refractor Telescope
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Product Description
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!

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).
 
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.
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.
Orion Star Diagonal 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.
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.
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.
   
Now all SkyQuest XTg and XXg GoTo Dobsonian telescopes - including this one - come Wi-Fi enabled, which means they can be controlled wirelessly from your smartphone or tablet instead of with the cabled SynScan hand controller! Just download the FREE SynScan Pro app to your iOS or Android device to enjoy wireless GoTo control! The SynScan Pro app is not a planetarium program, but rather provides similar intuitive menus and functions as the SynScan hand controller. Once you go wireless, you may never go back to "cable" again!


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).

 
HIGHLIGHT
  • 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
  • The XT8g now comes Wi-Fi enabled, which means it can be controlled wirelessly from your smartphone or tablet instead of with the SynScan hand controller. Just download the FREE SynScan Pro app to your iOS or Android device to enjoy wireless GoTo control
  • 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.
 
Scope of Delivery
  • 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
  • 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
 
Please Download INSTRUCTION MANUAL in PDF from the link provided below.
Physical Copies of the manual will not be given.
Download Instruction of ORION XT8 GoTo Dobsonian Reflector Telescope in .PDF format
 
FOCUS GROUP
Best for imaging Lunar & planetary
Best for viewing Brighter deep sky
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
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, Dust cap for front of optical tube
Other features Navigation knob, 2" dual-speed Crayford, Built-in WiFi for control by smartphone app
 
WARNING
 
The following items are FREE with the telescope listed above. [ Subject To Availability ]
Magnitude 5 Star Atlas
Directional Compass  FREE - NOT IN STOCK
Micro Fiber (Anti-Static) Cleaning cloth
Optics Cleaning Fluid
110 Messier Object Locator     A4 size front back colour print
109 Deep Sky CALDWELL Catalogue A4 size front back colour print
Star Dial - Identifying Stars & Constellations
Various Astronomical Post-Card (SET-3)
Desiccant Cap - Refillable desiccant cap to protect fine optics
Astronomical Telescope - user guide
The Moon Map Poster B/W chart unfold to 22"x26"
 
Suggested Accessories with this Telescope
  • SOLARIX Solar filter (Explore Scienfific - USA) provide more pleasing and natural Yellow-Orange image of the Sun . . . . Rs 4800
  • Universal Mobile Cell Phone adapter. . . . Rs 1200
  • T- Ring Nikon. . . . Rs 930
  • T- Ring Canon. . . . .Rs 930
  • T- Adapter 1.25". . . . Rs 750
  • STANDARD 2X Barlow with T- Adapter 1.25"( Standard camera adapter plus 2X telephotography)  . . . .Rs 1470
  • Super ACHROMATIC 2x BARLOW 1.25" OD, 2 ELEMENT LENS with T-thread. . . . Rs 2640
  • ADD GSO Super Plossl Eyepiece 1.25" . . . . Rs 2100 to 2820
  • Galaxy Eyepiece . . . . Rs 750
  • 32 mm Astro Eyepiece 1.25". . . . Rs 750
  • Non-Padded CARRY BAG for Tripod and EQ Mount. . . Rs 930
  • CARRY BAG Padded for Telescope Tube only. . . . Rs 1560
  • Astronomical mirror Star diagonal 1.25" . . . . Rs 660
 
 
 
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