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3
Table of Contents
1. Unpacking 3
2. Parts List 3
3. Assembly 3
4. Getting Started 4
5. Setting Up and Using the
Equatorial Mount 7
6. Collimating the Optics 10
7. Astronomical Observing 11
8. Care and Maintenance 13
9. Specications 14
1. Unpacking
The entire telescope system will arrive in one box. Be careful
unpacking the box. We recommend keeping the original ship-
ping containers. In the event that the telescope needs to be
shipped to another location, or returned to Orion for warranty
repair, having the proper shipping containers will help ensure
your telescope will survive the journey intact.
Make sure all the parts in the Parts List are present. Be sure
to check boxes carefully, as some parts are small. If anything
appears to be missing or broken, immediately call Orion
Customer Support (800-676-1343) for assistance.
2. Parts List
Qty. Description
1 Optical tube assembly
2 Tube mounting rings
1 Equatorial mount
1 Latitude adjustment T-bolt
2 Slow-motion control cables
3 Tripod legs connected to accessory
tray bracket
1 Tripod accessory tray
1 Counterweight shaft
1 Counterweight
1 EZ Finder II reflex sight with mounting
bracket
1 25mm Sirius Plossl eyepiece
1 10mm Sirius Plossl eyepiece
1 Collimating cap
3. Assembly
Assembling the telescope for the first time should take
about 30 minutes. All screws should be tightened securely
to eliminate exing and wobbling, but be careful not to over-
tighten or the threads may strip. Refer to Figures 1a. and
1b. during assembly.
During assembly (and anytime, for that matter), do not touch the
surfaces of the telescope mirrors or the lenses of the EZ Finder II
or eyepieces with your ngers; the optical surfaces have coatings
on them that can be damaged. Never remove any lens assem-
bly from its housing for any reason, or the product warranty and
return policy will be void.
1. Lay the equatorial mount on its side. Attach the tripod legs
one at a time to the mount using the screws installed in
the tops of the tripod legs. Remove the screws, washers,
and wingnuts from the tripod legs, then line up the holes in
the tops of the tripod legs with the holes in the base of the
mount. Reinstall the screws so they pass through the legs
and the mount. Place one washer on each screw before
doing this. After the screws are though the legs and mount,
place a washer and wingnut on each screw end (Figure
2). Tighten the wingnuts only nger-tight, for now.
2. Tighten the leg lock knobs on the bottom braces 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 tripod is completely assembled.
Congratulations on your purchase of an Orion telescope.Your new StarBlast II 4.5 EQ is a terric starter
instrument for exploring the exotic wonders of the night sky. Designed to be compact and easy to use, it
will provide many hours of enjoyment for the whole family.
If you have never owned 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. With a little practice, a little patience, and a reasonably dark sky away from city lights, you’ll
nd 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.
WARNING: Never look directly at the Sun through
your telescope—even for an instant—without a
professionally made solar lter that completely
covers the front of the instrument, or permanent eye
damage could result. Young children should use this
telescope only with adult supervision.
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