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Orion 9814 - page 1
INSTRUCTION MANUAL IN 201 Rev . A 08/02 Providing Exceptional Consumer Optical Products Since 1975 Customer Support (800) 676-1343 E-mail: support@telescope.com Corporate Offices (831) 763-7000 P .O. Box 1815, Santa Cruz, CA 95061 Orion ® StarBlast ™ #9814 4.5" Altazimuth Reflector T abletop T elescope ...
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Orion 9814 - page 2
2 Figure 1. The StarBlast. 1 2 4 5 3 7 12 8 9 11 10 6 ...
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Orion 9814 - page 3
3 StarBlast par ts: 17mm Explorer II eyepiece The ey epiece is the par t of the telescope that you actu- ally look through to see things. The f ocal length of the ey epiece and the telescope determines the magnifying power . Magnification is discussed in more detail in the Using Y our T elescope section. EZ Finder II reflex sight This is a special ...
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4 T able of Contents Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Getting Star ted . . . . . . . . . . . . . . . . . . . . . .4 Using Y our T elescope . . . . . . . . . . . . . . . . . .6 Care and Maintenance . . . . . . . . . . . . . . . .9 Specifications . . . . . . . . . . . . . . . . . . . . . . .9 Appendix A: Aligning the Mi ...
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Orion 9814 - page 5
5 Focusing the T elescope With the 17mm Kellner e yepiece (1) inserted into the focuser (4) and secured with the thumbscrews , aim the opti- cal tube (3) so the front (open) end is pointing in the general direction of an object at least 1/4-mile aw ay . With your fingers, slowly rotate one of the f ocus wheels (15) until the object comes into shar ...
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Orion 9814 - page 6
6 T o use the EZ Finder II, tur n the pow er knob clockwise until you hear a “clic k” indicating that po wer has been turned on. With your e ye positioned at a comf or table distance , look through the back of the refle x sight with both e y es open to see the red dot. The intensity of the dot can be adjusted by tur n- ing the power knob . F or ...
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Orion 9814 - page 7
7 “Seeing” and T ransparency Atmospheric conditions vary significantly from night to night. “Seeing” ref ers to the steadiness of the Earth’ s atmosphere at a given time . In conditions of poor seeing, atmospheric turbu- lence causes objects view ed through the telescope to “boil”. If , when y ou look up at the sky with y our nak ed e ...
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Orion 9814 - page 8
8 piece, if y ou wish. This is recommended for small and bright objects, lik e planets and double stars . The Moon also takes higher magnifications well. The best rule of thumb with eyepiece selection is to start with a low po wer , wide-field eyepiece , and then work your wa y up in magnification. If the object looks better , tr y an ev en higher ...
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Orion 9814 - page 9
9 sometimes it is visible to the nak ed ey e during full daylight! Ironically , V enus appears as a thin crescent, not a full disk, when at its peak brightness. Because it is so close to the Sun, it ne ver w anders too far from the morning or ev ening hor izon. No surf ace markings can be seen on V enus, which is alwa ys shrouded in dense clouds. D ...
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Orion 9814 - page 10
10 Aligning the Secondary Mirror With the collimation cap in place, look through the hole in the cap at the secondar y (diagonal) mirror . Ignore the reflections f or the time being. The secondar y mirror itself should be cen- tered in the f ocuser drawtube , in the direction parallel to the length of the telescope. If it isn’t, as in Figure 10b ...
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Orion 9814 - page 11
11 Aligning the Primary Mirror The final adjustment is made to the primar y mirror . It will need adjustment if , as in Figure 10d, the secondar y mirror is cen- tered under the f ocuser and the reflection of the primar y mirror is centered in the secondar y mirror , b ut the small reflec- tion of the secondar y mirror (with the “dot” of the co ...
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Orion 9814 - page 12
12 o xidizing. These coatings nor mally last through many y ears of use bef ore requiring re-coating, which is easily done. T o clean the secondar y mirror , it must be remov ed from the telescope. Do this by holding the secondary mirror holder sta- tionar y with your fingers (don ’ t touch the mirror itself) while unthreading the Phillips head s ...
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