Orion #27184 XT10I, #27183 XT8I SkyQuest XT10i IntelliScope, SkyQuest XT12i IntelliScope

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SkyQuest XT10i IntelliScope

Primary mirror: 254mm diameter, parabolic, center marked

Primary mirror material: Low thermal expansion optical glass

Mirror coatings: Enhanced-reflectivity (94%) aluminum, SiO2 overcoat

Minor axis of secondary mirror: 63mm

Focal length: 1200mm

Focal ratio: f/4.7

Focuser: Crayford, accepts 2" and 1.25" eyepieces with included adapter

Altitude bearing diameter: 5.75"

Optical tube material: Rolled steel

Azimuth pad material: Teflon

Altitude bearing material: UHMW polyethylene

Eyepieces: 25mm & 10mm Sirius Plössl, multi-coated, 1.25"

Eyepiece magnifications: 48x and 120x

Finder scope: 9x50mm, right-angle correct-image, 5° field of view

Eyepiece rack: Holds three 1.25" eyepieces and one 2" eyepiece

Optical tube weight: 28.9 lbs.

Base weight: 26.3 lbs.

Tube length: 47.25"

Tube outer diameter: 12.0"

SkyQuest XT12i IntelliScope

Primary mirror: 305mm diameter, parabolic, center marked

Primary mirror material: Low thermal expansion optical glass

Mirror coatings: Enhanced-reflectivity (94%) aluminum, SiO2 overcoat

Minor axis of secondary mirror: 70mm

Focal length: 1500mm

Focal ratio: f/4.9

Focuser: Crayford, accepts 2" and 1.25" eyepieces

Altitude bearing diameter: 5.75"

Optical tube material: Rolled steel

Azimuth pad material: Teflon

Altitude bearing material: UHMW polyethylene

Eyepieces: 25mm & 10mm Sirius Plössl, multi-coated, 1.25"

Eyepiece magnifications: 60x and 150x

Finder scope: 9x50mm, right-angle correct-image, 5° field of view

Eyepiece rack: Holds three 1.25" eyepieces and one 2" eyepiece

Optical tube weight: 50 lbs.

Base weight: 33 lbs.

Tube length: 58"

Tube outer diameter: 14"

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Contents Orion SkyQuest XTi SkyQuest XT8 IntelliScope Unpacking Table of Contents Parts ListBox #3 XT12i only Primary mirror and cell AssemblyAssembly of the Optical Tube XT12i only Page Loosely attach the front brace B to the two side panels Assembly of the Dobsonian BaseCorrect Tension pads Placing the Optical Tube on the Dobsonian Base Installing the Vertical StopInstalling the Eyepiece Rack Installing the CorrecTension Friction Optimization SystemAltitude Bearings Bearing cylinders Inserting an Eyepiece Installing the Finder ScopeAltitude and Azimuth Motion Using Your TelescopeSetting the Altitude Tension Level Aligning the Finder Scope Focusing the TelescopeFocusing the Finder Scope Viewing with EyeglassesTube Balance Aiming/Pointing the TelescopeMagnification Use of 2-Inch Eyepieces XT8i, XT10i, and XT12i onlyPage Collimation Cap and Mirror Center Mark Alignment Collimation of the Optical SystemAligning the Secondary Mirror Adjusting the Primary MirrorPreparing the Telescope for Collimation Selecting an Observing Site Star-Testing the TelescopeAstronomical Observing Eyepiece Selection Seeing and TransparencyCooling the Telescope Let Your Eyes Dark-AdaptStars MoonSun PlanetsIntelliScope Computerized Object Location Cleaning Mirrors Care and MaintenanceCleaning Eyepiece Lenses SkyQuest XT8i IntelliScope SpecificationsSkyQuest XT6i IntelliScope SkyQuest XT12i IntelliScope SkyQuest XT10i IntelliScopeOne-Year Limited Warranty