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Orion SkyQuest XX12 12" f/4.9 IntelliScope Truss-Tube Dobsonian Reflector with Parabolic Pyrex Primary Optics.

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About the Orion XX12

The Orion SkyQuest XX12 IntelliScope Truss Tube Dobsonian offers jumbo 12" (305mm) Pyrex parabolic optics of 1500mm focal length (f/4.9) with a stylish, reduced-weight base outfitted with computerized IntelliScope object locating technology and a sturdy, eight-truss tube design that disassembles in about a minute into compact, easily portable components.

The SkyQuest XX12 is a deluxe, large-aperture Dobsonian that fits comfortably into a compact car for transport to your favorite observing site. Thanks to the XX12's traditional truss tube design, which utilizes eight aluminum trusses (four captive pairs) that attach and detach quickly with oversized hand knobs - no tools required!

This design provides a more rigid structural support than other designs in this category. And all assembly knobs are captive, so you won't lose any in the dark! When removed, the trusses in each captive pair align in parallel, which saves space when transporting and storing them. Disassembly of the 56"-long optical tube yields two sections, the largest measuring just 26" in length.

The focuser is a dual-speed (11:1) 2" Crayford with 1.25" adapter, metal focus knobs and adjustable drawtube tension to ensure excellent, non-slip motion for any size of eyepiece used. Orion outfitted the XX12 with larger, 8" altitude bearings for smoother tube motion. The side-reinforced base sports stylish cutouts that minimize weight without sacrificing stability. EbonyStar laminate glides on virgin Teflon to give the azimuth motion the feel of silk. Fine features carried over from the XT12 include adjustable altitude tension, an open 9-point flotation primary mirror cell and a "navigation knob" for easy slewing.

Although the primary mirror cell is extremely well ventilated, the XX12 comes with a Cooling Accelerator Fan, which attaches to the back of the cell and facilitates faster equilibration of the mirror to ambient temperature. The secondary mirror has a 70mm minor axis and is held in a four-vane spider with very thin (0.7mm thick) vanes to minimize diffraction effects.

The acclaimed IntelliScope Computerized Object Locator comes standard on the XX12, allowing manual slewing to any of 14,000 celestial objects in just seconds, using its illuminated pushbutton keypad. It lets you spend your time viewing celestial objects instead of hunting for them. What's more, with the XX12's 305mm of light-grabbing aperture, your favorite "faint fuzzies" won't look nearly so faint or fuzzy! The deep-sky views will simply dazzle you.

The XX12 comes fully loaded with great accessories, including a 9x50 finder scope, aluminum eyepiece rack, two eyepieces: a low-power 35mm (43x) DeepView 2" and a high-power 10mm (150x) Sirius Plossl 1.25", dust caps for the top and bottom optical tube sections and a "collimating cap" to insure optical alignment of the mirrors. A convenient carrying handle is provided for the base.

Orion XX12 Includes

  • Orion SkyQuest XX12 12" F/4.9 Truss-Tube Dobsonian Reflector with Parabolic Pyrex Primary Optics
  • 9-Point Flotation Primary Mirror Cell with Spring Loaded Thumbscrew Collimation Adjustments
  • 70mm Minor-Axis Secondary Mirror on 4-Vaned (0.7mm Thick Vanes) Secondary Holder
  • 4 Groups of Two-Pole Rotatable Truss Assemblies with Captive Assembly Knobs
  • Dual-Speed (11:1) 2" Crayford Focuser with 1.25" Eyepiece Adapter and Adjustable Focusing Tension
  • Orion 1 Year Limited Warranty

Orion XX12 Features

  • Traditional 8-pole truss scalable design offers superior rigidity compared to other telescope designs in this category
  • HUGE 8" altitude bearings with adjustable CorrecTension and EbonyStar on Virgin Teflon azimuth bearings provide silky-smooth altazimuth motion
  • Included IntelliScope computerized object-locating technology pinpoints any of 14,000 objects in seconds
  • Big 12" (305mm) parabolic Pyrex optics (f/4.9) pack a serious punch for deep-sky observing
  • Deluxe 12" truss tube Dobsonian disassembles for easy transport to any observing site
  • All truss assembly knobs are captive for no-tools-required hassle-free tube assembly and disassembly
  • Includes Dual-speed (11:1) 2" Crayford focuser, 9x50 finder scope, 2" and 1.25" eyepieces, Cooling Accelerator Fan, eyepiece rack, dust caps for top and bottom tube sections and more!
  • A custom case set and light shroud are now available for the XX12, keep your scope clean and your views free of glare!
  • Telescope includes Starry Night Orion Special Edition software, now with telescope control functionality compatible with the IntelliScope system!

Orion XX12 Specifications

Use Astronomy
User level Advanced
Optical design Reflector
Optical diameter 305mm
Focal length 1500mm
Focal ratio f/4.9
Optics type Parabolic
Glass material Low expansion Pyrex
Eyepieces included DeepView 35.0mm (2"), Sirius Plossl 10.0mm (1.25")
Magnification with included eyepieces 42x, 150x
Resolving power 0.38arc*sec
Lowest useful magnification 43x
Highest useful magnification 300x
Limiting stellar magnitude 15.1
Optical quality Diffraction limited
Finder scope 9x50
Focuser 2" 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 style Dobsonian
Astro-imaging capability Simple moon shots
Computerized compatibility Intelliscope included
Number of objects in database 14000+
Bearing material AZ: EbonyStar/Teflon, ALT: UHMW/ABS
Power requirement 9-volt battery
Setting circles Electronic, via the hand controller
Available ports RS-232
Tube material Steel
Tripod material Wood
Items included 1 Unique New Base Design with Side Braces for Increased Stability
Base Outfitted With Ebonystar on Virgin Teflon Azimuth Bearings for Optimized Motion
Large 8" Diameter ABS Plastic Altitude Bearings with Adjustable Correctension Knobs
Navigation Knob
Intelliscope Object Locator System
9-Volt Battery (For Intelliscope Object Locator)
Base Handle
Eyepiece Rack (Holds One 2" Eyepiece and Three 1.25" Eyepieces)
Items included 2 9x50 Finder Scope
35mm Deepview 2" Eyepiece
10mm Sirius Plossl Eyepiece
Cooling Accelerator Fan
12V Battery Pack for Cooling Fan (Requires 8 D Cell Batteries: Not Included)
Dust Covers For Top and Bottom Tube Sections
Collimation Cap
Base Assembly Hardware
Orion Starry Night Special Edition Software
Instruction Manual
Other features IntelliScope Object Locator (w/ 9-volt battery), EbonyStar on Virgin Teflon azimuth bearings, Large 8" altitude bearings w/ adjustable tension
Assembled weight (including accessories) 86.5 lbs.
Assembled optical tube dimensions 56"L x 14"W
Assembled optical tube weight 49.5 lbs.
Bottom tube section dimensions 26"L x 14"W
Bottom tube section weight 34.3lbs
Top tube section dimensions 8"L x 14"W
Top tube section weight 9.6 lbs.
Truss poles (8) 22"L x 1"W
Total weight of 4 Truss pole pairs 5.6lbs. (with captive assembly knobs)
Base Dimensions 25"W x 30"H
Base Weight 34lbs.
12V battery pack included Requires 8 D-cells (not included) to power Cooling Accelerator Fan
Length of optical tube 58.3 in.
Weight, optical tube 49.5 lbs.
Weight, mount/tripod 34.0 lbs.
Weight, fully assembled 86.5 lbs.
Warranty Orion 1 year limited warranty
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