Congratulations on your purchase of an Orion SkyQuest XTg GoTo Dobsonian. It is an observer’s dream telescope, offering quality
A
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to use.
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With the
Please read these instructions thoroughly before beginning assembly and subsequent use of the telescope.
Table of Contents
1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. The GoTo Hand Controller . . . . . . . . . . . . . . . . . . . . . . 10
4. Setup for AutoTracking or GoTo Mode . . . . . . . . . . . . . 11
5. Using the Telescope in AutoTracking Mode . . . . . . . . . 12
6. Alignment for GoTo Operation . . . . . . . . . . . . . . . . . . . 12
7. Using the Telescope in GoTo Mode . . . . . . . . . . . . . . . 14
8. Collimating the Optical System . . . . . . . . . . . . . . . . . . 20
9. Using Your Telescope . . . . . . . . . . . . . . . . . . . . . . . . . . 21 10. Astronomical Observing. . . . . . . . . . . . . . . . . . . . . . . . 23
11. Care and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . 25
12. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Menu Tree. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Appendix A: Time Zones of the World . . . . . . . . . . . . . . . . 29 Appendix B:
1. Unpacking
The telescope is packed in two boxes, one containing the opti- cal tube assembly and accessories, another containing the unassembled Dobsonian base. The 12" model has a third box containing the primary mirror in its cell. Be careful unpacking the boxes. We recommend keeping the original packaging. In the event that the telescope needs to be shipped to another
C E G I
Figure 2. Contents of the optical tube box: A) Optical tube,
B)Dust cap, C) Holster with mounting screws, D) EZ Finder II with bracket, E) Hex keys, F) collimation cap, G) 1.25" 12.5mm illuminated Plössl eyepeice, H) 2" 28mm DeepView eyepiece, I) Starry Night CD-ROM, J) eyepiece rack with mounting screws.
location, or returned to Orion for warranty repair, having the proper packaging will help ensure that your telescope will sur- vive the journey intact.
Before beginning assembly, unpack each box and confirm that all of the parts in the Parts List below are present. The parts are listed by the box they should arrive in, but some of the parts may be in different boxes than indicated below. Be sure to check all boxes carefully, as some parts are small. If anything appears to be missing or broken, immedi- ately call Orion Customer Support
Parts List
Box #1: Optical Tube Assembly and Accessories (Refer to Figure 2)
Qty. Description
1Optical Tube Assembly
1Dust cover
128mm Deep View eyepiece, 2" barrel diameter
112.5mm Illuminated Plössl eyepiece, 1.25" barrel diameter
1EZ Finder (with bracket)
1Collimation cap
1Eyepiece rack
2Eyepiece rack wood screws (20mm long, color black)
2Hex keys (2mm, 3mm)
1Tube connecting knob
1Hand controller holster (with 2 assembly screws)
3