Instruction/ maintenance manual of the product 9738 Orion
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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.
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.
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 .
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.
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.
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 .
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 .
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.
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 .
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 .
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.
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 c.
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 refl.
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.
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.
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 .
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.
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.
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.
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.
An important point after buying a device Orion 9738 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Orion 9738 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Orion 9738 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Orion 9738 you will learn all the available features of the product, as well as information on its operation. The information that you get Orion 9738 will certainly help you make a decision on the purchase.
If you already are a holder of Orion 9738, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Orion 9738.
However, one of the most important roles played by the user manual is to help in solving problems with Orion 9738. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Orion 9738 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
