Orion 6/6I instruction manual Adjusting the Secondary Mirror’s Tilt, Aligning the Primary Mirror

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Figure 31. The collimation and mirror locking thumbscrews

in the secondary mirror holder about a quarter of a turn only (counterclockwise). That should be enough to free up the sec- ondary mirror to rotate slightly in either direction. Look into the collimation cap and rotate the mirror slightly in each direction to get an idea of how it affects the view of the secondary mir- ror. Now rotate the mirror as needed so that it precisely faces the focuser. Hold the mirror holder stationary in that position while turning the center screw clockwise until it is just tight (do not over-tighten). Sometimes the mirror may rotate slightly when tightening the screw, so keep at it until the mirror faces the focuser squarely and is secured in place.

Adjusting the Secondary Mirror’s Tilt

Finally, the tilt of the secondary mirror may occasionally require adjustment. If the entire primary mirror reflection is not visible in the secondary mirror when using the collimation cap, as in Figure 27c, you will need to adjust the tilt of the second- ary mirror. Using a 2mm hex key, first loosen one of the three alignment set screws by, say, one full turn, and then tighten the other two to take up the slack. Do not loosen the center screw during this process. The goal is to center the primary mirror reflection in the secondary mirror, as in Figure 27d. When it is centered, you’re done adjusting the secondary mirror. Don’t worry that the reflection of the secondary mirror (the dark cir- cle with the four spider vanes adjoining it) is off-center, since that adjustment is made when aligning the primary mirror in the next step.

Aligning the Primary Mirror

The final collimation adjustment is made to the primary mir- ror. It will need adjustment if, as in Figure 27d, the second- ary mirror is centered under the focuser and the reflection of the primary mirror is centered in the secondary mirror, but the reflection of the secondary mirror (dark circle containing the light reflective surface and center black “dot” of the collimation cap) is off-center.

The tilt of the primary mirror is adjusted with three spring- loaded collimation thumbscrews on the back end of the optical tube (bottom of the primary mirror cell); these are the wide thumbscrews (Figure 31). The other three thin thumbscrews

Figure 32. A star test will determine if the telescope’s optics are properly collimated. An unfocused view of a bright star through the eyepiece should appear as illustrated on the right if optics are perfectly collimated. If the circle is unsymmetrical, as illustrated on the left, the scope needs collimation.

lock the mirror’s position in place; these thin thumbscrews must be loosened before any collimation adjustments can be made to the primary mirror.

To start, turn the thin thumbscrews that lock the primary mirror in place counterclockwise a few turns each.

Now, while looking into the focuser through the collimation cap, turn one of the wide collimation thumbscrews a half turn or so in either direction and see if the secondary mirror reflec- tion moves closer to the center of the primary. That is, does the “dot” of the collimation cap appear to move closer to the ring on the center of the primary mirror? If it does, great, keep going until you get it as close as you can. If it doesn’t, try turning the collimation thumbscrew in the opposite direction. If turning the one collimation thumbscrew does not seem to bring the dot closer to the ring, try using one of the other collimation thumbscrews. It will take some trial-and-error using all three collimation thumbscrews to properly align the primary mirror. Over time you will get the feel for which collimation screws to turn to move the image in a given direction.

When you have the dot centered as much as possible in the ring, your primary mirror is collimated. Now lightly tighten the three thin locking thumbscrews to secure the primary mirror in place.

The view through the collimation cap should now resemble Figure 27e. A simple star test will indicate how well the tele- scope optics are collimated.

Star-Testing the Telescope

When it is dark, point the telescope at a bright star and accu- rately center it in the eyepiece’s field of view. Slowly de-focus the image with the focusing knob. If the telescope is correct- ly collimated, the expanding disk should be a perfect circle (Figure 32). If the image is unsymmetrical, the scope is out of collimation. The dark shadow cast by the secondary mirror should appear in the very center of the out-of-focus circle, like the hole in a donut. If the “hole” appears off-center, the tele- scope is out of collimation.

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Contents Orion StarBlast 6/6i IntelliScope Reflector #9926 / #27126Page Table of Contents Parts List UnpackingJam nut for vertical stop bolt Azimuth encoder disk Assembly of #9926 Assembly of #27126 StarBlast 6i IntelliScopeUnder side of top baseplate Pre-drilled starter hole BaseplateHead of azimuth axis bolt and fender washer Tape Compression spring On the telescope mounting bracket shaft with the flat Into the jack on the right side of the encoder connectorBase where you want the clip to be located Side of the ring facing outward the opposite side hasInstall the Eyepiece Rack Final Assembly of Your Telescope StarBlast 6/6iInstall the EZ Finder II Reflex Sight Attach the Optical Tube to the BasePreparing to Use Your Telescope Aligning the EZ Finder Replacing the EZ Finder II BatteryObserving With Your Telescope Choosing an Observing SiteTracking Celestial Objects Eyepiece SelectionWhat to Expect Planets MoonSun StarsSetting the Vertical Stop Using the IntelliScope Computerized Object LocatorPowering the Controller AlignmentSimple Two-Star Alignment Jam nut Vertical stop L-bracketAlignment Error Warp Factor Overview of the IntelliScope Computerized Object LocatorPushbuttons Guide Arrows Locating the PlanetsLocating Deep-Sky Objects by Catalog Messier CatalogNew General Catalog Index Catalog Locating NebulasLocating Star Clusters Named Stars Locating GalaxiesLocating Stars Double and Multiple StarsTours of the Best Objects Using the ID ButtonCatalog ST Stars Starting a TourAdding User-Defined Objects Function FCN ButtonDec. Coordinates Altitude and Azimuth Test Realignment FunctionHidden Functions Encoder TestCare and Maintenance Download Checksum RewriteClock Specifications of the StarBlast 6/6i Specifications of the IntelliScope SystemObjects in database Appendix a Collimating the Optics Collimation CapPrimary Mirror Center Mark Adjusting the Secondary Mirror’s Rotational Position Preparing the Telescope for CollimatingAligning the Secondary Mirror Adjusting the Secondary Mirror’s Tilt Star-Testing the TelescopeAligning the Primary Mirror Appendix B Cleaning the Optics Appendix C Troubleshooting IntelliScope SystemWarp factor consistently above ±0.5 but below ±2.0 Warp numbers larger thanPage Appendix D Alignment Star Finder Charts SpicDaylight saving time Late July Late JuneEarly July Early AugustEga Early September 200 AM Late September 100 AM Early OctoberLate October Late January Late DecemberEarly January Early FebruaryAppendix E Constellation Abbreviations Canes VenaticiPiscis Austrinus Appendix F ST Catalog UV p Nu Phi ∑162 ∑174 ∑163 Baten Kaitos ∑178 ∑180 ∑80 ∑79 ∑88 ∑90 Zeta Eta∑113 Psi RumkerTheta Omicron3506 Epsilon26 03 Zaurak Lambda75871 Alpha 12916 ZetaHinds Crimson Star ∑627 ∑552 ∑559∑572 54 R ∑590 Iota Pi4 Pi5 ∑644 ∑655 RhoDelta 119 ∑718 Rigel476 H3750 Alnilam Phi2 Zeta Sigma Phact Alnitak Gamma32.3 Zeta Mirzam MuAlpha Eta ADS Furud Beta +07 +20.2 +37∑80 Nu1Sirius ∑948 ∑958 ∑1037AC 31 Beta Procyon O∑179 ∑1138 ∑1127 ∑1149Zeta c Beta 3948 ADS HN19 H269 Alpha Kappa Zeta RumkerH4188 h4191 ∑1321 ∑1334 ∑1338 Alpha Kappa ∑1347 Kappa H4903 ∑1224 ∑1223∑1282 ∑1298 Rho ∑1311 24 PhiTania Australis Mu Alpha 45 Delta ∑1355Zeta ∑1351 Alterf Alpha Omega Lambda ADSADS ADS 8119 Nu ADS 8148 83 84 Lambda Beta H4486 ∑1466∑1633 +04 +68.8+05.3 Epsilon M40 ∑1639Alpha Delta Gamma ADS +21 57.2 +03.4 +38.3 +66.013 29.7 ADS 8934 13 32.3 13 Mizar Spica ∑∑123 ∑1755Rigil Kentaurus Pi ∑1864 20.3∑1932 Mu ∑1931 Zeta Alpha q Alpha C1 Izar DunlopH4715 H4753 Iota DeltaDelta Sigma 121 Delta Sigma Rho Epsilon Iota ∑2052Rmk H4853Alpha Eta 75, Rho Zeta AtriaShaula Rasalhague Iota 75’ 40’ 35’40-41 ∑2241 KappaPsi 100H5082 Alpha ∑359 ∑358 Vega∑2375 ∑2379 Beta ∑2404 ∑2420 Delta2 ∑525 Nunki 13 ∑2417 ∑2449 ∑2474+32.6 +50 +45 +35 +10.6 +33 +18.5 +70 +11.8 +19 +08 Delta Epsilon ∑2583 Zeta Chi Altair Eta 57 O∑532 Psi+49 +15.1 29.2Omicron ∑2716 BF h1470 X WZ ∑2675 ∑2637 ∑2644RT Alpha Alpha ∑2671 S763Delta Theta Beta ∑2816 V460 SS RV ∑274212 Xi ∑2758 Epsilon Lambda ∑2840 ∑2841H5334 ∑2873 Eta ∑2863 O∑461Alpha ∑2894 Pi +82Phi Psi3 Dunlop249 Errai Theta 107 ∑3042 Lal192 Sigma ∑3050 +03 +37Star Double star challenge Page One-Year Limited Warranty

6/6I specifications

The Orion 6/6I is a state-of-the-art vehicle designed to meld innovative technology with exceptional performance, catering to the needs of modern transportation. This model stands out in the competitive landscape of automotive engineering, boasting a range of features that enhance both functionality and user experience.

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Furthermore, the Orion 6/6I is built with high-quality materials and finishes, providing comfort and style. The spacious interior is designed with ergonomic seating and customizable climate control options, making every journey enjoyable. Ample storage solutions and innovative design elements contribute to a functional yet sophisticated atmosphere.

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All these features combine to make the Orion 6/6I a versatile choice for those seeking a reliable and modern vehicle that meets the demands of today’s eco-conscious and technology-driven society. Whether commuting to work or embarking on a weekend adventure, the Orion 6/6I promises to deliver an exceptional driving experience.
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