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Orion 9738 - page 1
INSTRUCTION MANUAL IN 175 Rev . C 04/09 Customer Support (800)-676-1343 E-mail: support@telescope.com Corporate Offices (831)-763-7000 89 Hangar W ay , Watsonville, CA 95076 Orion T elescopes.com Orion ® SkyV iew ™ Pr o 8 EQ #9738 Equatorial Reflecting T elescope Providing Exceptional Consumer Optical Products Since 1975 ...
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Orion 9738 - page 2
2 Figure 1. The SkyVie w Pro 8 EQ. Finder scope Finder scope brac ket Eyepiece T ube r ings Optical tube Mirror cell Right ascension slow-motion control knob Latitude scale Latitude adjustment L-bolts Center suppor t shaft T r ipod suppor t tra y Declination slow-motion control knob Saf ety thumbscrew Mounting plate securing knob Counterweight shaf ...
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Orion 9738 - page 3
3 T able of Contents 1. Unpacking ........................ 3 2. P ar ts list ......................... 3 3. Assembly ........................ 3 4. Balancing the T elescope ............. 5 5. Using Y our T elescope ............... 6 6. Setting Up and Using the Equatorial Mount ................... 7 7. Collimation (Aligning the Mirrors) ..... 11 8. A ...
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Orion 9738 - page 4
4 of the central suppor t shaft until the three tray arms are touching the legs of the tripod. The flat side of the acces - sor y tr ay should be f acing up. Make sure the “V” of each tra y arm is against a tr ipod leg. Place the washer back on the center suppor t shaft against the tra y , and thread the securing knob all the way up the center ...
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Orion 9738 - page 5
5 Inserting the Eyepiece Loosen the thumbscrew on the 1.25" adapter (Figure 4) and remov e the small dust cap. Inser t the 25mm eyepiece into the f ocuser and secure it with the thumbscrew . Y our telescope is now completely assembled and should appear as shown in Figure 1. 4. Balancing the T elescope T o ensure smooth movement of the telescop ...
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Orion 9738 - page 6
6 5. Using Y our T elescope Focusing the T elescope With the 25mm e yepiece inser ted in the focuser , mov e the telescope so the front (open) end is pointing in the general direction of an object at least 1/4-mile awa y . Now , with y our fingers, slowly rotate one of the f ocusing knobs until the object comes into shar p focus . Go a little bit b ...
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Orion 9738 - page 7
7 The SkyView Pro 8 EQ has a focal length of 1000mm, which when used with the supplied 25mm ey epiece yields: 1000mm = 40x 25mm The magnification provided b y the 10mm eyepiece is: 1000mm = 100x 10mm The maximum attainable magnification for a telescope is directly related to how much light it can gather . The larger the aper ture, the more magnific ...
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Orion 9738 - page 8
8 star Sigma Octantis lies about 1° from the SCP , but it is barely visible with the nak ed eye (magnitude 5.5). F or general visual obser v ation, an appro ximate polar align - ment is sufficient. 1. Lev e l the e quator ial m ount by ad justi ng the l ength of the three tripod legs. 2. There are two latitude adjusting L-bolts (see Figure 7); loo ...
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Orion 9738 - page 9
9 The reticle of the polar axis finder scope has a tiny star map printed on it that makes precise polar alignment quick and easy . If you do not hav e a clear view of P olaris from your obser ving site, you will not be ab le to use the polar-axis finder to precisely polar align the telescope .T o align the mount using the polar axis finder scope, f ...
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Orion 9738 - page 10
10 Note: If y ou have an optional motor drive attached, you will need to loosen the c lutch on the R.A. (and Dec. f or dual-axis drives) gear shaft before using the slo w-motion control knob. T racking Celestial Objects When you observe a celestial object through the telescope, you’ll see it dr ift slo wly across the field of view . T o keep it i ...
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Orion 9738 - page 11
Most setting circles are not accurate enough to put an object dead-center in the telescope’ s eyepiece , but they should place the object some where within the field of view of the find- er scope, assuming the equatorial mount is accurately polar aligned. Use the slow-motion controls to center the object in the finder scope, and it should appear ...
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Orion 9738 - page 12
T o check collimation, remo ve the eyepiece and look down the f ocuser drawtube . Y ou should see the secondar y mirror cen - tered in the dra wtube, as well as the reflection of the pr imary mirror centered in the secondar y mirror, and the reflection of the secondar y mirror (and your ey e) centered in the reflection of the primar y mirror , as i ...
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Orion 9738 - page 13
13 Adjusting the Primary Mirror The final adjustment is made to the pr imary mirror . It will need adjustment if , as in Figure 14d, the secondary mirror is cen - tered under the f ocuser and the reflection of the primar y mirror is centered in the secondary mirror , but the small reflection of the secondary mirror (with the “dot” of the collim ...
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Orion 9738 - page 14
14 8. Astr onomical Obser ving F or many users, the SkyView Pro 8 EQ telescope will be a major leap into the world of amateur astronomy . This section is intended to get you ready f or y our v oy ages through the night sky . Site Selection Pick a location aw ay from street lights and bright y ard lighting. A void vie wing over rooftops and chimneys ...
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Orion 9738 - page 15
15 used to achiev e higher or lo wer pow ers. It is quite common f or an observer to own five or more ey epieces to access a wide range of magnifications. This allows the obser v er to choose the best eyepiece to use depending on the object being view ed. At least to begin with, the tw o supplied ey epieces will suffice nicely . Whate ver y ou choo ...
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Orion 9738 - page 16
16 B e c a u s e i t i s s o c l o s e t o t h e S u n , i t n e ve r w a n d e r s t o o f ar from the morning or ev ening hor izon. No surface m a r k i n g s c a n b e s e en on V enus, which is always shrouded in dense clouds. MARS The Red Planet makes its closest approach to Ear th e ver y two years . During close approaches y ou’ll see a re ...
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Orion 9738 - page 17
17 9. Astr ophotography When coupled to a 35mm single-lens reflex camera, the SkyView Pro becomes a telephoto lens. T o attach a camera, you need only a T -ring for y our specific camera model and the included camera adapter . First you must attach the included camera adapter to the SkyView Pro 8 EQ’ s f ocuser. T o do this, remov e the 1.25" ...
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Orion 9738 - page 18
18 Aim the telescope at a deep-sky object. It should be a f airly lar ge deep -sky obj ect, as the ca mera len s wi ll likely have a wide field of vie w . Chec k to make sure that the object is also centered in the camera’ s viewfinder . T ur n the motor dr iv e on. Now , look into the telescope’s e yepiece and center the bright- est star withi ...
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Orion 9738 - page 19
19 under a stream of luke warm water . Any par ticles on the sur - f ace can be s wabbed gently with a ser ies of cotton balls, each used just one time. Dry the mirror in a stream of air (a “blow er bulb” wo rks gre at), or re move any st ra y dro ps of water wit h the cor ner of a paper to wel. W ater will run off a clean surface. Cov er the m ...
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Orion 9738 - page 20
20 One-Y ear Limited W arranty This Orion SkyVie w Pro 8 EQ is warranted against defects in materials or workmanship for a period of one y ear from the date of purchase. This warranty is f or the benefit of the or iginal retail purchaser only . During this w arranty period Orion T elescopes & Binoculars will repair or replace, at Orion’ s opt ...
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