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.

Table of Contents

Parts List

 

1. Unpacking. . . . . . . . . . . . . . . . . . . 3

Box #1: Optical Tube Assembly and Accessories

2. Assembly

4

Qty

 

3. Using Your Telescope

 

11

1

 

 

4. Alignment (Collimation) of the Optical System . . . .

15

1

 

5. Astronomical Observing

. 17

1

 

6. IntelliScope Computerized Object Location

 

20

1

 

 

7. Care and Maintenance

 

21

1

 

 

8. Specifications

 

22

1

 

 

 

1. Unpacking

 

 

1

 

 

2

The telescope is packed in two boxes (three for the XT12i),

2

one containing the optical tube assembly and accessories,

1

the other containing the unassembled Dobsonian base (the

1

third box for the XT12i includes the mirror and cell). Be care-

1

ful unpacking the boxes. We recommend keeping the original

shipping containers. In the event that the telescope needs to

2

be shipped to another location, or returned to Orion for war-

2

ranty repair, having the proper shipping containers will help

 

ensure that your telescope will survive the journey intact.

 

1

Make sure all the parts in the Parts List are present. Be sure

1

to check boxes carefully, as some parts are small. If anything

1

appears to be missing or broken, immediately call Orion Cus-

 

tomer Support (800-676-1343) or email:

1

 

Description

Optical tube assembly Dust cover

25mm Sirius Plössl eyepiece, 1.25" 10mm Sirius Plössl eyepiece, 1.25"

9x50 Right-angle correct-image finder scope (6x30 for the XT6i) with bracket

Collimation cap

4-Hole eyepiece rack (3-hole for XT6i) Eyepiece rack mounting screws Tensioning/Retaining knobs Tensioning knob nylon washer (white) Tensioning knob metal washer Handle

Handle mounting hex-head screws Handle mounting screw washers Crescent wrench

Azimuth encoder board Encoder connector board Azimuth encoder disk

sales@telescope.com for assistance.

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.

Box #2: Dobsonian Base

Qty Description

1Left panel

1Right panel

1Front brace

1Top baseplate

1Ground baseplate

12Base assembly wood screws (length 2", black)

2Hex keys (4mm, 2mm)

3

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Orion 10019 XT10i, 10026 XT6i, 10020 XT12i, 10018 XT8i instruction manual Table of Contents Parts List, Unpacking
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10019 XT10i, 10018 XT8i, 10020 XT12i, 10026 XT6i specifications

The Orion XT series of telescopes, including the XT12i, XT8i, XT6i, and XT10i, are highly regarded for their quality and performance, making them popular choices among astronomy enthusiasts. Each model in the XT line features a Dobsonian design, renowned for its simplicity and ease of use, allowing users to enjoy stargazing without the complexities associated with other types of telescopes.

Starting with the Orion XT12i, this model boasts a 12-inch aperture that delivers exceptional light-gathering power, ideal for deep-sky observations. Equipped with the IntelliScope computer navigation system, users can enjoy the convenience of locating over 14,000 celestial objects with ease. The oversized 2-inch focuser accommodates a range of eyepieces and accessories, while the solid, sturdy base ensures stability during observation.

Next is the Orion XT10i, featuring a 10-inch aperture designed for delivering stunning views of galaxies, nebulae, and star clusters. Like its larger counterpart, the XT10i also comes with the IntelliScope system, allowing for simple object location. Its compact design makes it an ideal choice for both backyard astronomy and portable stargazing trips. The XT10i includes a rich set of accessories, including a 1.25-inch eyepiece, to enhance the observing experience.

The Orion XT8i brings a 8-inch aperture to those seeking a balance between performance and portability. This telescope offers impressive light-gathering capabilities while remaining lightweight enough for easy transport. The IntelliScope feature enables users to navigate easily between celestial objects. It is an excellent choice for both beginners and experienced users looking for a versatile telescope.

Finally, the Orion XT6i features a 6-inch aperture, making it an optimal choice for those new to astronomy. Despite its smaller size, the XT6i still offers excellent views of the night sky and is highly portable. With the IntelliScope system, users can quickly find and explore various celestial objects. Its user-friendly design and setup make it a perfect introduction to the world of astronomy for novices.

In summary, the Orion XT series of telescopes presents a diverse range of options suitable for astronomers of all experience levels. They combine innovative technologies like the IntelliScope navigation system with solid construction and impressive optics, ensuring memorable astronomical experiences. Whether you're delving into deep-sky exploration or enjoying casual stargazing, the XT line has a model that fits your needs.
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