Orion instruction manual Orion StarMax 90 EQ, #9821 Equatorial Maksutov-Cassegrain Telescope

Models: 90 EQ

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StarMax™ 90 EQ

					Customer Support (800)‑676-1343
					E-mail: support@telescope.com
					E-mail: support@telescope.com
					Corporate Offices (831)‑763-7000
					Corporate Offices (831)‑763-7000
					89 Hangar Way, Watsonville CA 95076
					89 Hangar Way, Watsonville CA 95076
Providing Exceptional Consumer Optical Products Since 1975					OrionTelescopes.com

IN 162 Rev. C 06/08

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Contents

#9821 Equatorial Maksutov-Cassegrain Telescope Orion StarMax 90 EQCustomer Support 800‑676-1343 E-mail support@telescope.comRight Ascension slow-motion control Counterweight Mounting block Counterweight shaftCounterweight lock knob Tripod leg Declination slow motion control Accessory tray Accessory tray bracket2. Parts List Table of Contents1. Unpacking Right ascension setting circle Declination slow motion control 3. AssemblyLatitude scale Latitude adjusting T-Bolt Latitude locking T-Bolt Declination lock knob not shown Declination setting circleBalancing the Telescope 4. Getting StartedFocusing the Telescope 5. Setting Up and Using the Equatorial MountFocusing the Finder Scope Do You Wear Eyeglasses?Use of the R.A. and Dec. Slow-Motion Control Cables Polar AlignmentCalibrating the Right Ascension Setting Circle Understanding the Setting CirclesFinding Objects With the Setting Circles Tracking Celestial ObjectsChoosing an Observing Site 6. Using Your Telescope- Astronomical Observing“Seeing and Transparency Cooling the TelescopeB. The Sun A. The MoonEyepiece Selection Magnification = focal length of telescope ÷ focal length of eyepieceD. The Stars C. The PlanetsHow to Find Deep-Sky Objects Star Hopping E. Deep-Sky Objects7. Terrestrial Viewing 9. Care and Maintenance8. Photography TransportingCleaning the Tube 10. SpecificationsCleaning Lenses One-Year Limited Warranty