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Orion XT8 Plus Dobsonian Reflector Telescope


  • Deluxe upgrade of our popular XT8 Classic Dobsonian boasts multiple key feature enhancements and additional included accessories
  • Eye-catching metallic blue optical tube rides on a redesigned base with adjustable altitude tension knobs
  • Convenient thumbscrew-adjustable secondary mirror for easy collimation without tools
  • Features a 2" dual-speed Crayford focuser with 11:1 fine-focus provides precise focus adjustments for sharp views
  • Upgraded accessories include a 2" 28mm DeepView eyepiece, 1.25" 10mm Sirius Plossl eyepiece, Safety Film Solar Filter, Shorty 2x Barlow, eyepiece rack, EZ Finder II reflex sight, collimation cap, and more

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Best for viewing Brighter deep sky
Best for imaging Lunar & planetary
User level Beginner
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 Sirius Plossl 10.0mm (1.25"),DeepView 28.0mm (2")
Magnification with Included Eyepieces 120x, 43x
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 Lunar & planetary
Computerized Compatibility Not compatible
Bearing Material PTFE and UHMW bearings
Tube Material Steel
Tripod Material Wood
Length of Optical Tube 46.5 in.
Weight, Optical Tube 20.8 lbs.
Weight, Mount/Tripod 21.2 lbs.
Weight, Fully Assembled 42.0 lbs.
Additional Included Accessories 1.25" eyepiece adapter, Eyepiece rack, 2x Barlow 1.25", Collimation cap, Safety film solar filter, 8"
Other Features Adjustable altitude axis tension knobs, Dual-speed Crayford, Enhanced 94% reflectivity, Secondary mirror collimation thumbscrews
Warranty One year

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In The Box

    Orion SkyQuest XT8 PLUS Dobsonian Reflector Telescope Optical Tube Assembly with Crayford focuser
  • Dobsonian base
  • Altitude tension knobs
  • Eyepiece rack
  • Orion 2" 28mm DeepView telescope eyepiece
  • Orion 1.25" 10mm Sirius Plossl telescope eyepiece
  • Orion 1.25" Shorty 2x Barlow
  • Orion Safety Film Solar Filter for 8" Reflector Telescopes
  • Orion EZ Finder II Reflex Sight
  • Collimation cap
  • Dust cover for optical tube
  • Starry Night Special Edition astronomy software download card