Orion SKYQUEST #27189 XT12I - Manual (Page 3)

3
Congratulations on your purchase of an Orion SkyQuest XTi IntelliScope Dobsonian. It is a high-perfor-
mance astronomical instrument designed to provide dazzling views of celestial objects and unprecedent-
ed ease of use. With the addition of the optional IntelliScope Computerized Object Locator (Controller),
you gain the ability to locate and view thousands of celestial objects with the push of a button. Searching
for faint objects – so often a source of frustration for telescope users – is a thing of the past, as the Intel-
liScope’s high-resolution digital encoders find them for you in seconds. It’s so easy!
Your SkyQuest IntelliScope will provide years of stargazing enjoyment, thanks to its large-aperture, preci-
sion optics; its innovative, user-friendly design; its complement of outstanding features and accessories;
and most of all, its easy object locating technology. We hope you enjoy your journey through the universe!
Please read these instructions thoroughly before beginning assembly and subsequent use of the telescope.
1. unpacking
The telescope is packed in two boxes (three for the XT12i),
one containing the optical tube assembly and accessories,
the other containing the unassembled Dobsonian base (the
third box for the XT12i includes the mirror and cell). Be care-
ful unpacking the boxes. We recommend keeping the original
shipping containers. In the event that the telescope needs to
be shipped to another location, or returned to Orion for war-
ranty repair, having the proper shipping containers will help
ensure that 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 Cus-
tomer Support (800-676-1343) or email:
[email protected] for assistance.
Parts list
Box #1: optical tube assembly and accessories
Qty Description
1
Optical tube assembly
1 Dust cover
1 25mm Sirius Plössl eyepiece, 1.25"
1 10mm Sirius Plössl eyepiece, 1.25"
1 9x50 Right-angle correct-image finder scope (6x30
for the XT6i) with bracket
1 Collimation cap
1 4-Hole eyepiece rack (3-hole for XT6i)
2 Eyepiece rack mounting screws
2 Tensioning/Retaining knobs
1 Tensioning knob nylon washer (white)
1 Tensioning knob metal washer
1 Handle
2
Handle mounting hex-head screws
2 Handle mounting screw washers
1 Crescent wrench
1 Azimuth encoder board
1 Encoder connector board
1 Azimuth encoder disk
Box #2: Dobsonian Base
Qty Description
1
Left panel
1 Right panel
1 Front brace
1 Top baseplate
1 Ground baseplate
12 Base assembly wood screws (length 2", black)
2
Hex keys (4mm, 2mm)
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.
table of contents
1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Using Your Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4. Alignment (Collimation) of the Optical System . . . . . . . 15
5. Astronomical Observing . . . . . . . . . . . . . . . . . . . . . . . . 17
6. IntelliScope Computerized Object Location . . . . . . . . . . 20
7. Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 21
8. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22