Orion Observer 134mm User Manual

INSTRUCTION MANUAL
IN 666 10/21
Orion
®
Observer 90mm, 114mm, and 134mm
Equatorial Telescopes
#52986 Observer 114mm EQ Reflector
#52987 Observer 134mm EQ Reflector
#52988 Observer 90mm EQ Refractor
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may be reproduced, copied, modied or adapted, without the prior written consent of Orion Telescopes & Binoculars.
AN EMPLOYEE-OWNED COMPANY
#52988 #52986 #52987
Congratulations on your purchase of an Orion telescope. Your new Observer Equatorial telescope is a ter-
ric instrument designed to provide outstanding views of celestial wonders. Any one of these three qual-
ity telescopes will reward you and your friends and family with many hours of enjoyment and discovery.
These instructions will help you set up, properly use, and care for your telescope. Please read them over
thoroughly before getting started.

Orion Observer 134mm Specifications

General

Aperture	134mm
Focal Length	650mm
Focal Ratio	f/4.9
Optical Design	Newtonian Reflector
Mount Type	Equatorial
Finderscope	6x30
Eyepieces Included	25mm, 10mm

Summary

Assembly

Preparing the Telescope For Operation

The Red Dot Finder Scope

Understanding and Using the Equatorial Mount

Balancing the Telescope

Steps to balance the telescope on both R.A. and Dec. axes for smooth operation.

Polar Alignment

Procedure to align the mount's R.A. axis with Earth's polar axis for accurate tracking.

Tracking Celestial Objects

Methods to keep observed celestial objects centered in the eyepiece.

Astronomical Observing

Collimation of Your Telescope's Optics

Aligning the Secondary Mirror

Steps to correctly position the secondary mirror for collimation.

Aligning the Primary Mirror

Procedure to adjust the primary mirror for optimal optical performance.

Telescope Care and Maintenance