Orion instruction manual #9966 Dobsonian Reflecting Telescope, Orion SkyQuest XT12 Classic

Models: 9966

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SkyQuest™ XT12 Classic

				Customer Support (800) 676-1343
				E-mail: support@telescope.com
				Corporate Offices (831) 763-7000
Providing Exceptional Consumer Optical Products Since 1975				P.O. Box 1815, Santa Cruz, CA 95061

IN 256 Rev. A 08/05

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Contents

Orion SkyQuest XT12 Classic #9966 Dobsonian Reflecting TelescopeCustomer Support E-mail support@telescope.comSecondary mirror holder with 4-vane spider not visible Parts List Table of Contents1. Unpacking Care and maintenanceAssembly of the Optical Tube 2. AssemblyBox #3 Primary Mirror and Cell Assembly of the Dobsonian base Installing the Eyepiece Rack Placing the Optical Tube on the Dobsonian Base Installing the CorrecTension XT Friction Optimization SystemInstalling the Finder Scope 3. Using Your TelescopeInserting an Eyepiece Altitude and Azimuth Focusing the TelescopeViewing with Eyeglasses Aligning the Finder ScopeAiming/Pointing the Telescope Focusing the Finder ScopeMagnification Telescope Focal Length mm = Magnification Eyepiece Focal Length mmTransporting the Telescope 4. Collimation Aligning The MirrorsThe Collimation Cap and Mirror Center Mark Aligning the Secondary Mirror Adjusting the Primary MirrorStar-Testing the Telescope 5. Astronomical ObservingNote About the Collimatable 2 Focuser Site SelectionLet Your Eyes Dark-Adapt Cooling the TelescopeTracking Celestial Objects Eyepiece SelectionAstronomical Objects Use of 2 EyepiecesA. The Moon B. The SunE. Deep-Sky Objects How to Find Deep-sky Objects StarhoppingNote About Astrophotography 7. Specifications 6. Care and MaintenanceCleaning Lenses Cleaning MirrorsPage Page Orion Telescopes & Binoculars One-Year Limited WarrantyCustomer Support Help Line 800 676-1343 Day or Evening Post Office Box 1815, Santa Cruz, CA