Orion 9964 instruction manual Assembly, To the altazimuth base

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the telescope determines the magnifying power. Magnification is discussed in more detail in the Using Your Telescope section.

2EZ Finder II reflex sight: This is a special “finder” that helps you aim the telescope and locate objects in the sky for viewing. The EZ Finder II generates a red LED “dot” that shows where your telescope is aimed. The use of the EZ Finder II is discussed in the Getting Started section.

3Optical tube: This is the main component of the tele- scope.

4Focuser: This is where the eyepiece is placed, and it is where you focus. Details of the focuser are shown in Figure 2.

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Figure 2. Details of the StarBlast 6 focuser.

5Tube rings (qty 2): These tube rings connect the optical tube (3) to the base bracket (18) which connects to the altazimuth base (9).

6Altitude tension adjustment knob: By tightening and loosening this knob, you can change the amount ten- sion in the altitude (up/down) motion of the telescope.

7Navigation knob: Grasping this knob allows you to aim the telescope without touching the optical tube

(3)itself. This allows you to point the telescope without heat from your hands affecting the quality of view.

8Mirror cell: This contains the primary mirror (16) as well as the collimation thumbscrews that are used to optically align the primary mirror. This is explained in the Collimating appendix.

9Altazimuth base: This wooden base provides a stable base for the telescope. It allows you to move the tele- scope in altitude (up/down) and azimuth (left/right).

10Carrying handles: These convenient handles are built into the base, allowing you to easily carry the StarBlast 6 to your viewing location. The carrying handles are also handy places to put your hand when aim- ing the telescope. See Using Your Telescope for more details.

11Eyepiece rack: A handy metal rack in which to store your extra eyepieces.

1210mm Sirius Plössl eyepiece: The higher-power eyepiece that comes with the StarBlast 6. Eyepieces are discussed in the Magnification section.

13Feet: Three feet provide suppor t for the StarBlast 6 and are skid free. This allows you to place the StarBlast 6 on smooth surfaces.

Figure 2 shows detail of the focuser:

14Focus wheels: The focus wheels are used to bring objects into focus. By turning them you move the rack- and-pinion focuser (4) in and out.

15Eyepiece securing thumbscrews: These thumbscrews are used to keep the eyepiece (1) secure in the focuser (4)

Items not shown:

16Primary mirror: The parabolic mirror at the rear of the optical tube (3) gathers incoming light and focuses it with its parabolic shape. The primary mirror has a small center-mark that is explained in the Collimating appendix. This center-mark should not be removed.

17Secondary mirror: The secondary mirror is located near the opening of the optical tube (3) and reflects the focused light from the primary mirror (15) into the eyepiece (1).

18Base bracket: This bracket connects the tube rings

(5) to the altazimuth base (9).

193/16" Hex key: This tool is used to connect the tube rings (5) to the base bracket (18).

20Collimation cap: This small cap fits in the focuser and is used to aid in aligning of the optics. This process is explained in the Collimating appendix.

21Socket-head cap screws (qty. 2) with flat washers and lock washers: These screws and washers are used to connect the tube rings (5) to the base brack- et (18).

Assembly

The StarBlast 6 arrives partially assembled, which makes assembly very easy. To get started, place the pre-assembled wooden altazimuth base (9) on a table or other flat surface and locate the following accessories:

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Tube rings (5)

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Base bracket (18)

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EZ Finder II reflex sight (2)

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25mm Sirius Plössl eyepiece (1)

1

10mm Sirius Plössl eyepiece (12)

1Eyepiece rack (11)

2Socket-head cap screws w/washers (21)

Attaching the optical tube to the Altazimuth base

To attach the optical tube (3) to the altazimuth base (9) you will first need to equip the base bracket (18) with the two tube rings (5). Rotate the base bracket so one of the two attachment holes is accessible. Place a lock washer and

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Contents Orion StarBlast Astro Telescope StarBlast 6 Altazimuth Reflector UnpackingTo the altazimuth base AssemblyPlacing the StarBlast Getting StartedAttaching the EZ Finder Attaching the eyepiece rackFocusing the Telescope Altitude and Azimuth Aiming the TelescopeDo You Wear Eyeglasses? Choosing an Observing Site Using your telescopeReplacing the EZ Finder II Battery Aligning the EZ FinderLight Pollution Tracking Celestial ObjectsEyepiece Selection Objects to Observe 750mm = 30x 25mmMagnification Limits What to ExpectStars Care and MaintenanceSpecifications PlanetsAppendix a Collimating Aligning the Mirrors Collimation Cap and Mirror Center MarkAligning the Secondary Mirror Aligning the Primary Mirror Cleaning Mirrors Appendix B Cleaning the OpticsStar-Testing the Telescope Cleaning Lenses

9964 specifications

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