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Orion 9851 - page 1
IN 186 Rev . B 02/09 Providing Exceptional Consumer Optical Products Since 1975 Customer Support (800 ) 676-1343 E-mail: support@telescope.com Corporate Offices (831) 763-7000 89 Hangar W ay , W atsonville, CA 95076 INSTRUCTION MANUAL Orion SpacePr obe ™ 1 30mm EQ #9851 Equatorial Newtonian Reflector T elescope ...
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Orion 9851 - page 2
2 Figure 1. The SpaceProbe 130 EQ par ts diagram Dov etail slot Finder scope Alignment thumb screws(2) Spring-loaded tensioner Finder scope brac ket Piggyback adapter T ube mounting rings T ube ring clamps Primar y mirror cell Collimation screws(6) R.A. setting circle Latitude adjustment T -bolt Azimuth lock knob Leg loc k knob Accessor y tray Acce ...
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Orion 9851 - page 3
3 T able of Contents 1. Unpacking ........................ 3 2. P ar ts List ......................... 3 3. Assembly ........................ 3 4. Getting Star ted .................... 6 5. Setting Up and Using the Equatorial Mount .................. 8 6. Collimating the Optics .............. 10 7. Using Y our T elescope– Astronomical Obser ving ...
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Orion 9851 - page 4
4 f aces ha ve delicate coatings on them that can be damaged if touched inappropriately . Nev er remo ve any lens assembly from its housing for any reason, or the product warranty and return policy will be voided. 1. La y the equator ial mount on its side. Attach the tripod legs one at a time to the mount using the screws installed in the tops of t ...
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Orion 9851 - page 5
5 counterweight from f alling off (and onto your foot!) if the counterweight loc k knob becomes loose. 7. A ttac h th e two tu be r ings to the equ ator ial hea d us ing the hex head scre ws that come installed in the bottom of the rings. First remov e the screws , then push the screws, with the washers still attached, up through the holes in the t ...
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Orion 9851 - page 6
6 1. Keeping one hand on the telescope optical tube , loosen the R.A. lock lev er. Make sure the Dec. lock lev er is lock ed, for now . The telescope should now be able to rotate freely about the R.A. axis. Rotate it until the coun- terweight shaft is parallel to the g round (i.e., horizontal). 2. Now loosen the counterweight loc k knob and slide t ...
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Orion 9851 - page 7
7 piece while slowly rotating the f ocus knob in the opposite direction. Y ou should soon see the point at which focus is reached. Do Y ou Wear Eyeglasses? If you wear eyeglasses , you may be able to keep them on while you observe, if y our eyepieces ha ve enough “e ye relief ” to allo w you to see the whole field of view . Y ou can tr y this b ...
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Orion 9851 - page 8
8 the Ear th’ s rotational (polar) axis—a process called polar alignment. Polar Alignment F or Nor ther n Hemisphere obser v ers, appro ximate polar alignment is achiev ed by pointing the mount’ s R.A. axis at the Nor th Star, or P olaris. It lies within 1° of the nor th celes- tial pole (NCP), which is an extension of the Ear th’ s rota - ...
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Orion 9851 - page 9
9 Optional Motor Drives for Automatic T racking An optional DC motor drive can be mounted on the R.A. axis of the equatorial mount to provide hands-free trac king. Objects will then remain stationar y in the field of vie w without any manual adjustment of the R.A. slow-motion control. Understanding the Setting Circles The setting circles on an equa ...
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Orion 9851 - page 10
10 the counterweight shaft will be or iented somewhere between vertical and hor iz ontal. The ke y things to remember when pointing the telescope is that a) you only mov e it in R.A. and Dec., not in azimuth or latitude (altitude), and b) the counterweight and shaft will not alwa ys appear as it does in Figure 1. In f act, it almost nev er will! 6. ...
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Orion 9851 - page 11
11 If the entire primar y mirror reflection is not visib le in the sec- ondar y mirror , as in Figure 8c, you will need to adjust the tilt of the secondar y mirror . This is done by alter nately loosening one of the three alignment setscrews while tightening the other two , as depicted in Figure 10. The goal is to center the primar y mirror reflect ...
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Orion 9851 - page 12
12 to see if the “dot” of the collimation cap is moving closer or fur ther aw ay from being centered in the “ring” of the pr imary mirror . When you ha ve the dot centered as much as pos - sible in the r ing, your primar y mirror is collimated. The view through the collimation cap should resemble Figure 8e . A simple star test will tell y o ...
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Orion 9851 - page 13
13 ture change, the more time is needed. Allo w at least 30 min- utes for y our telescope to cool to the temperature outdoors. In very cold climates (below freezing), it is essential to store the telescope as cold as possible. If it has to adjust to more than a 40° temperature change, allo w at least one hour . Let Y our Eyes Dark-Adapt Don ’t e ...
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Orion 9851 - page 14
14 between the dark and light por tions of the disk (called the “terminator”). A full Moon is too br ight and de void of surf ace shadows to yield a pleasing view . Make sure to obser ve the Moon when it is well abov e the hor iz on to get the shar pest images. Use an optional Moon filter to dim the Moon when it is ver y bright. It simply threa ...
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Orion 9851 - page 15
15 brightest deep-sky objects, first catalogued about 200 years ago by the F rench astronomer Charles Messier . Determine in which constellation the object lies. Now , find the constellation in the sky . If y ou do not recognize the constella- tions on sight, consult a planisphere. The planisphere gives an all-sky view and shows which constellation ...
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Orion 9851 - page 16
16 Then f ollo w the same proce dure described be low f or cleaning the primar y mirror . The secondary mirror is glued into its hold - er , and should not be remov ed from the holder for cleaning. T o clean the primary mirr or , carefu lly remo ve the mirr or cell from the telesco pe. This is don e by fir st remov ing the thr ee primar y mirror co ...
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