Table Of Contents; Parts List; Assembly - Orion 100 EQ Instruction Manual

W
elcome to the exciting world of amateur astronomy! Your new AstroView 100 EQ Reflector is designed
for high-resolution viewing of astronomical objects. With its precision optics and equatorial mount, you'll
be able to locate and enjoy hundreds of fascinating celestial denizens, including the planets, Moon, and
a variety of deep-sky galaxies, nebulas, and star clusters.
These instructions will help you set up, properly use, and care for your telescope. Please read them thor-
oughly before getting started.

Table of Contents

1. Parts list . . . . . . . . . . . . . . . . . . . . . . . . .3
2. Assembly . . . . . . . . . . . . . . . . . . . . . . . . .3
3. Getting Started . . . . . . . . . . . . . . . . . . . .5
4. Setting up and Using the
Equatorial Mount . . . . . . . . . . . . . . . . . . .7
5. Astronomical Observing . . . . . . . . . . . .11
6. Terrestrial Observing . . . . . . . . . . . . . . .14
7. Photography . . . . . . . . . . . . . . . . . . . . .15
8. Collimation . . . . . . . . . . . . . . . . . . . . . .15
9. Care and maintenance . . . . . . . . . . . . .16
10. Specifications . . . . . . . . . . . . . . . . . . . .16

1. Parts List

1 Optical tube assembly
1 German equatorial mount
1 Counterweight shaft
1 Counterweight
3 Tripod legs with attached accessory tray bracket
3 Leg attachment screws with wingnuts and washers
3 Leg lock knobs
1 Accessory tray with mounting hardware
2 Slow-motion control cables
1 Polar axis finder scope
1 Plastic cover for polar axis
2 Tube mounting rings
2 Tube ring attachment knobs with washers
1 6x30 Achromatic crosshair finder scope
1 Finder scope bracket with O-ring
1 90° Star diagonal
1 25mm Sirius Plössl eyepiece
1 10mm Sirius Plössl eyepiece
1 Dust cap
1 Collimation tool

2. Assembly

Make sure all the parts listed in the Parts List are present and
familiarize yourself with their features. Please keep the origi-
nal shipping box and interior packaging. In the unlikely event
that you should need to ship the original telescope back to
Orion, you should use the original packaging.
Assembling the telescope for the first time should take about
30 minutes. No tools are needed other than the ones provid-
ed. All screws should be tightened securely to eliminate
flexing and wobbling, but be careful not to over-tighten or the
threads may strip. Refer to Figure 1 during the assembly
process.
During assembly (and anytime, for that matter), do not touch
the surfaces of the telescope objective lens, the lenses of the
finder scope, or eyepiece lenses with your fingers. The optical
surfaces have delicate coatings on them that can easily be
damaged if touched inappropriately.
1. Lay the equatorial mount on its side. Attach the tripod legs
one at a time to the mount using the leg attachment
screws. line up the holes in the top of the tripod leg with the
holes in the base of the mount, and install the screw so it
passes through the leg and the mount with one washer on
both sides of the tripod leg. Tighten the wingnuts only fin-
ger-tight, for now.
2. Insert and tighten the leg lock knobs into the base of the
tripod legs. For now, keep the legs at their shortest (fully
retracted) length; you can extend them to a more desirable
length later, after the scope is completely assembled.
3. Stand the tripod upright and spread the tripod legs apart
as far as they will go, until the accessory tray bracket is
taut. Attach the accessory tray to the bracket with the three
wingnut screws already installed in the tray. Push the
screws up through the holes in the bracket, then thread
them into the holes in the tray.
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. Young children should use this telescope
only with adult supervision.
3