Orion 9738 instruction manual Specifications

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under a stream of lukewarm water. Any particles on the sur- face can be swabbed gently with a series of cotton balls, each used just one time. Dry the mirror in a stream of air (a “blower bulb” works great), or remove any stray drops of water with the corner of a paper towel. Water will run off a clean surface. Cover the mirror surface with Kleenex, and leave the mirror in a warm area until it is completely dry before reassembling the telescope.

11. Specifications

Primary mirror diameter: 203mm (8")

Primary mirror coating: Aluminized, SiO2 overcoat

Focal Length: 1000mm

Focal Ratio: f/4.9

Secondary mirror: 58mm minor axis

Secondary mirror holder: Four-vaned spider, .4mm thick vanes

Eyepieces: 25mm and 10mm Sirius Plössls, fully coated, 1.25"

Magnification: 40x (with 25mm) and 100x (with 10mm)

Finder Scope: 8x40 achromatic, 5.33° field of view

Focuser: Rack and pinion, accepts 2" or 1.25" eyepieces

Camera adapter: Couples 35mm SLR camera T-ring to focuser

Mount: SkyView Pro, German equatorial

Tripod: Steel

Tripod support tray: Aluminum, provides additional stability, holds five 1.25" eyepiece and two 2" eyepieces

Weight: 62 lbs. (Mount 30 lbs., optical tube 32 lbs.)

Counterweights: 10.9 lbs. each

Polar axis latitude adjustment: 8° to 70°

Polar axis finder: Optional

Motor Drives: Optional

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Contents Orion SkyView Pro 8 EQ Finder scope Unpacking Table of ContentsParts List AssemblyKnobs Installing the Finder ScopeInserting the Eyepiece Balancing the TelescopeUsing Your Telescope 1000mm = 100x 10mm Setting Up and Using the Equatorial MountUsing 2 eyepieces 1000mm = 40x 25mmOptional polar axis finder scope Polar Alignment Using the Optional Polar Axis Finder ScopePage Finding Objects With the Setting Circles Understanding the Setting CirclesCalibrating the Declination Setting Circle Calibrating the Right Ascension Setting CircleConfused About Pointing the Telescope? Collimation Aligning The MirrorsAligning the Secondary Mirror Collimation Cap and Mirror Center MarkStar-Testing the Telescope Adjusting the Primary MirrorAstronomical Observing What to Expect MoonDeep-Sky Objects How to Find Deep-sky Objects StarhoppingPiggyback Photography AstrophotographyMoon Photography Planetary PhotographyCleaning Lenses Care and MaintenanceCleaning Mirrors Specifications One-Year Limited Warranty