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i n s t r u c t i o n M a n u a l
orion
skyQuest
Xtg
®
™
Goto Dobsonians
#10134 XT8g, #10135 XT10g, #10136 XT12g
Customer Support:
www.OrionTelescopes.com/contactus
Corporate Offices:
89 Hangar Way, Watsonville CA 95076 - USA
Providing Exceptional Consumer Optical Products Since 1975
IN 388 Rev. D 06/13
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Related Manuals for Orion SkyQuest 10134 XT8g
Summary of Contents for Orion SkyQuest 10134 XT8g
- Page 1 M a n u a l orion skyQuest ® ™ Goto Dobsonians #10134 XT8g, #10135 XT10g, #10136 XT12g Customer Support: www.OrionTelescopes.com/contactus Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA Providing Exceptional Consumer Optical Products Since 1975 IN 388 Rev.
- Page 2 EZ Finder II 28mm DeepView 2" eyepiece 2" Dual-speed Crayford focuser Optical tube Navigation knob Tube connecting knob GoTo hand controller Handle Altitude motor housing 12.5mm Illuminated Plössl 1.25" eyepiece Eyepiece rack Handle Azimuth motor housing (not shown) Dobsonian base Polyethylene foam dust guard Figure 1.
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Page 3: Table Of Contents
Eyepiece rack location, or returned to Orion for warranty repair, having the Eyepiece rack wood screws (20mm long, color black) proper packaging will help ensure that your telescope will sur- Hex keys (2mm, 3mm) vive the journey intact. - Page 4 Ground baseplate assembly Front panel Machine Base (with azimuth motor) screws Base feet assembly with wood washers screws Left Hex keys panel Right (with panel altitude motor) Screwdriver Cables Wood Base hardware Tube connecting screws and handle knob Hand controller Figure 4.
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Page 5: Assembly
Figure 7. Figure 8. Attaching the base feet to the base. Secure the front panel to each side panel. 2. assembly Now that you have unpacked the boxes and familiarized yourself with all the parts in front of you, it is time to begin assembly. - Page 6 Cutout holes Threaded inserts Figure 10. Figure 12. Align the holes on the side panels with the threaded To remove the rear end ring, unthread the six screws inserts in the baseplate. that connect it to the tube. not tighten completely yet. Place the eyepiece rack on those screws using the wide holes on the rack and slide it downward so the narrow portion is under the screws.
- Page 7 Shaft Spring Figure 13. Place the three springs on the exposed threaded shafts of the mirror cell. Figure 16. Locate the area of tube that is bulging out and preventing the end ring from fully seating. Warning: Once the rear end ring is removed from the tube, the raw edge of the tube itself will be exposed.
- Page 8 Threaded hole for tube connecting knob Figure 17. The cast-metal dovetail trunnion on the left side panel of the base mates with the left side bearing of the telescope tube. Before mounting the tube on the base, turn the trunnion by hand so that the hole for the tube connecting knob is facing up.
- Page 9 1.25" adapter 1.25" adapter thumbscrew Power 2" adapter knob Focus lock 2" adapter thumbscrew thumbscrews Azimuth adjustment Fine knob focus knob Altitude Battery adjustment casing Coarse Coarse knob Thumbscrews Dovetail focus knob focus knob mounting bracket Drawtube tension setscrews Figure 20. Figure 21.
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Page 10: The Goto Hand Controller
Because the primary mirror is shipped separately from the more sophisticated collimation devices, such as the Orion optical tube, the telescope’s optics must be collimated before LaserMate Deluxe II Laser Collimator. -
Page 11: Aligning The Secondary Mirror
Figure 23. SkyQuest optical tube properly set up for collimation. Note the white paper placed across from the focuser, and the level angle of the optical tube. Ideally, the telescope should be pointing at a white wall. (IntelliScope model shown.) light, preferably in a brightly lit room and aimed at a white wall. -
Page 12: Using Your Telescope
Figure 26. Figure 27. The three small thumbscrews that lock the primary The tilt of the primary mirror is adjusted by turning mirror in place must first be loosened before any adjustments can one or more of the three larger thumbscrews. be made. - Page 13 of view of the telescope’s eyepiece for viewing. When the EZ Finder II is properly aligned, the telescope can be pointed at anything you wish to observe and it will then be centered, or nearly so, in the telescope’s field of view as well. Start by moving the telescope by hand or using the hand controller’s directional buttons until it is pointed in the general direction of the object you want to see.
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Page 14: Astronomical Observing
Using the optional light shroud will be a necessity 1.25" eyepieces. A wider field can be desirable for viewing (see below). Also, use of a light-pollution filter, like the Orion extended deep sky objects that are too large to fit within a SkyGlow Broadband filter, can mitigate the effects of back- narrower field of view. - Page 15 astronomical objects galaxies, and star clusters – or even very many stars, for that matter. Your eyes take about 30 minutes to reach per- Now that you are all setup and ready to go, one critical deci- haps 80% of their full dark-adapted sensitivity. Many observ- sion must be made: what to look at? ers notice improvements after several hours of total darkness.
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Page 16: Specifications
Certain imaging accessories, such as the Orion SteadyPix, can help in obtaining images by the afocal method. Deep-sky photography is not recommended with the SkyQyest XTg Dobs. For the longer exposures required for deep-sky photography, an equatorial mount is needed, or an altazimuth mount equipped with a field rotator. - Page 17 skyQuest Xt10g skyQuest Xt12g Primary mirror: 254mm diameter, parabolic, center-marked Primary mirror: 305mm diameter, parabolic, center-marked Focal length: 1200mm Focal length: 1500mm Focal ratio: f/4.7 Focal ratio: f/4.9 Focuser: Dual-speed Crayford (11:1), accepts 2" and 1.25" Focuser: Dual-speed Crayford (11:1), accepts 2" and 1.25" eyepieces with included adapter eyepieces Optical tube material: Rolled steel...
- Page 18 Warranty This Orion product is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this war- ranty period Orion Telescopes &...