Orion SKYQUEST #27189 XT12I Bedienungsanleitung

IN 226 Rev. I 08/11INSTRUCTION MANUALOrion SkyQuest™ XTi IntelliScope Dobsonian Telescopes#27182 XT6i, #27183 XT8i, #27184 XT10i, #27189 XT12iCustome

10The CorrecTension system is now installed. If you wish to remove the optical tube from the base, you will first need to unthread and remove both the

dust cap on the front of the telescope tube should always remain in place when the telescope is not in use. It is also a good idea to store eyepieces

12Focusing the TelescopeWith the 25mm Sirius Plössl eyepiece in the focuser and secured with the thumbscrew(s), move the telescope so the front (open)

13of focus, you will need to refocus the finder scope for your vision. Loosen the lock ring located behind the objective lens cell on the body of the

14retaining and tensioning knobs of the CorrecTension(XT) sys-tem holding the optical tube captive on the base, the entire telescope can be carried as

15When putting the IntelliScope into a vehicle, common sense prevails. It is especially important that the optical tube does not get knocked around; t

Preparing the Telescope for CollimationOnce you get the hang of collimation, you will be able to do it quickly even in the dark. When trying it for th

17of the secondary mirror (with the “dot” of the collimation cap) is off-center.The tilt of the primary mirror is adjusted with three spring-loaded co

18B. Seeing and TransparencyAtmospheric conditions play a huge part in quality of view-ing. Light from stars and other celestial objects must travel t

19if you wish. This is especially recommended for small and bright objects like planets and double stars. The Moon also takes higher magnifications we

2Figure 1. The SkyQuest XT8 IntelliScopeSecondary mirror holder with 4-vane spider (not visible)Left side panelFoot (3)Primary mirror cellIntelliScop

20tive to color in faint light. Still, there is something very special about seeing an astronomical object in real time, with your own eyes — “live,”

217. Care and MaintenanceIf you give your telescope reasonable care, it will last a life-time. Store it in a clean, dry, dust-free place, safe from ra

228. SpecificationsSkyQuest XT6i IntelliScope Primary mirror: 150mm diameter, parabolic, center markedPrimary mirror material: Low thermal expansion o

23SkyQuest XT10i IntelliScope Primary mirror: 254mm diameter, parabolic, center markedPrimary mirror material: Low thermal expansion optical glassMirr

24One-Year Limited WarrantyThis Orion SkyQuest IntelliScope Dobsonian Reflecting Telescope is warranted against defects in materials or workmanship f

3Congratulations on your purchase of an Orion SkyQuest XTi IntelliScope Dobsonian. It is a high-perfor-mance astronomical instrument designed to provi

43 Plastic feet3 Feet attachment wood screws (length 1")5 Encoder board mounting wood screws1 Brass bushing 1 Azimuth axis hex-head screw (l

5Next, assemble the rear end ring to the mirror cell. Find a clean, flat surface, and turn the mirror cell over so that the mirror is facing downwards

Assembly of the Dobsonian BaseRefer to Figure 2 during base assembly. The base need only be assembled once, unless you disassemble it for long-term st

76. Place a fender washer (H) onto the azimuth axis screw (I). Then push the screw up through the hole in the ground baseplate (A).Then slide the enc

8Next, you’ll need to install the altitude encoder board assem-bly. To do so, please refer to the separate instruction manual for the IntelliScope Com

9To install the XT system, follow these steps while referring to Figures 10 and 11:1. Select one of the retaining/tensioning knobs and slide the meta