Meade Instruments Corporation | Meade ETX-105EC instruction

Instruction Manual

ETX-90EC Astro Telescope

ETX-105EC Astro Telescope

ETX-125EC Astro Telescope

Meade Instruments Corporation

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Meade ETX-105EC, ETX-125EC instruction manual Meade Instruments Corporation

Contents

Meade Instruments Corporation Page Contents Slew Speed QUICK-START Guide ETX-90EC Astro Telescope Telescope and Electronic Controller Functions Telescope Controls ETX Your Personal Window to the UniverseViewfinder Computer Control Panel Flip mirror control in the up position Electronic Controller Functions Indicator Light KeyLight Blinking Off Getting Started Focusing the Viewfinder Using The ViewfinderAligning the Viewfinder ETX-90EC 8 x 21mm Erect-Image Viewfinder Choosing an Eyepiece Observation TechniquesAlignment 1900mm Power = = 26mm Telescope Focal Length Power = Eyepiece Focal LengthUnderstanding Magnification Terrestrial Observing Sidereal Rate Astronomical ObservingElectronic Controller Slew Speeds Modes of Operation Alt/Az ModeTelescope Mountings To move the telescope using the Electronic Controller Polar ModeYou use Polar or Equatorial mounting. By Celestial Coordinates Polar Alignment ProcedureLocating the Celestial Pole High-Latitude Tripod Leg ETX-90EC Standard Tripod Leg ETX-90ECStandard Tripod Leg ETX-105EC, ETX-125EC High-Latitude Tripod Leg ETX-105EC, ETX-125EC ETX-90EC Photography Few Tips on Photography Example of a format 1 photo Power Optional AccessoriesPower 2x Barlow ETX-105EC ETX-125EC Eyepiece #825 Right- Angle Viewfinder Storage and Transport General Maintenance Inspecting the Optics Troubleshooting Telescope moves off a terrestrial object while observing Meade Customer Service Specifications ETX-105EC Astro Telescope Specifications ETX-90EC Astro TelescopeSpecifications ETX-125EC Astro Telescope Appendix a Advanced Electronic Controller Functions Changing Modes Using the Electronic ControllerTracking Motor Speeds Northern Hemisphere Polar Appendix B Helpful Charts Setting Circles Appendix C Precise Polar Alignment Setting Circles Autostar Glossary Appendix D YOU and the UniverseMoon Planets Pleiades is one of the most beautiful open clusters Deep-Sky Objects Meade Limited Warranty Meade Instruments Corporation