ORION TELESCOPES & BINOCULARS Observer 60 AZ 9020, Observer 60mm 9023 Instruction Manual

IN 123 Rev. A 0799

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INSTRUCTION MANUAL

Orion

®

Observer™ 60 AZ

60mm Altazimuth Refracting Telescope

#9020

2

Observer 60 Altazimuth Parts Diagram

Finder scope
Finder scope bracket

Finder scope focuser

Eyepiece

Eyepiece lock thumbscrew
Star diagonal

Focuser draw tube
Focusing knob
Altitude micro-motion knob
Altitude micro-motion rod
Altitude micro-motion

lock knob

Accessory tray bracket
Accessory tray

Optical tube

Dew cap

Objective lens

Altitude lock knob

Yoke

Azimuth lock knob

Tripod leg bolt

Tripod leg

3

1. Terminology

Altazimuth Mount

A simple type of telescope mount that
allows the telescope to be moved in two perpendicular direc­tions: up and down (altitude) and sideways (azimuth).

Altitude Micro-Motion

(or Slow-Motion) Control Atwo-piece
threaded rod that is anchored to the altazimuth mount and to
the telescope tube. Athumbwheel on the rod can be turned to
slowly lengthen or shorten its length, resulting in small
changes in the pointing altitude of the telescope.

Dew Cap

Reduces moisture buildup on objective lens; reduces

off-axis glare.

Diagonal

Diverts the light cone by means of a mirror or prism
to provide a more comfortable viewing angle (usually 90° or
45°). Diagonals are often used with refractor and catadioptric
telescopes, but not with Newtonian reflectors.

Eyepiece

The part into which you look. It contains a number
of lenses that together magnify the image formed by the tele­scope and allow your eye to focus on it. Eyepieces of different
focal lengths produce different magnifications.

Finder Scope

Aids in aiming the telescope. It is a small, low­power refracting scope, usually with crosshairs, that rides
piggyback on the main telescope’s optical tube. Its wide field
of view greatly facilitates the location of target objects for
viewing in the main telescope’s eyepiece.

Focal Length

For refractors, the distance from the objective
lens to the point at which the light rays converge to the focus
point. The focal length of a refractor is a function of the cur­vature of the objective lens as well as on the type of glass it
is made of. Focal length is usually expressed in millimeters.

Objective Lens

The main lens system on the front end of a
refractor. It gathers light and brings it to a focus. The objec­tive lens of this telescope consists of two glass lens elements,
which is called an achromat.

C

ongratulations on your purchase of a quality Orion telescope.

Your new Observer 60 AZ Refractor is
designed primarily for astronomical viewing, but can also be used for terrestrial observation (with the
recommended addition of an image-erecting diagonal prism).

If you have never used a telescope before, we would like to welcome you to amateur astronomy. Take
some time to familiarize yourself with the night sky. Learn to recognize the patterns of stars in the major
constellations; a star wheel, or planisphere, available from Orion or from your local telescope shop, can
greatly help. With a little practice, a little patience, and a reasonably dark sky away from city lights, you'll
find your telescope to be a never-ending source of wonder, exploration, and relaxation.

These instructions will help you set up, properly use and care for your telescope. Please read them over
thoroughly before getting started.

Table of Contents

1. Terminology ............................................................................................................................ 3

2. Parts List................................................................................................................................. 4

3. Assembly................................................................................................................................ 4

4. Aligning the Finder Scope ...................................................................................................... 4

5. Using Your Telescope............................................................................................................. 5

6. Astronomical Viewing ............................................................................................................. 6

7. Terrestrial Viewing .................................................................................................................. 7

8. Care and Maintenance........................................................................................................... 7

9. Specifications.......................................................................................................................... 8

WARNING:

Never look directly at the
Sun through your telescope or its finder
scope—even for an instant—without
a professionally made solar filter that
completely covers the front of the
instrument, or permanent eye damage
could result. Be sure to also cover
the front of the finder scope with aluminum
foil or another opaque material to prevent
physical damage to the internal
components of the scope itself as well as to
your eye. Young children should use this
telescope only with adult supervision.