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Table of Contents
Related Manuals for SKY-WATCHER S11670
Summary of Contents for SKY-WATCHER S11670
- Page 1 Telescopes with EQ5 Mount 091508 v2...
- Page 2 REFRACTOR MANUAL EQ5 PRO (150mm/1200mm) TUBE A. Dust Cap/Mask (Remove before Viewing) B. Sun Shade C. Objective Lens D. Telescope Main Body E. Piggyback Bracket F. Tube Rings G. 8x50 Viewfinder or Red Dot Finder H. Finderscope Bracket Alignment Screw J.
- Page 3 REFLECTOR MANUAL EQ5 PRO (200mm/1000mm) TUBE A. Dust Cap/Mask (Remove before Viewing) B. Focus Tube C. Red Dot Finder or 8x50 Viewfinder D. Eyepiece E. Focus Knob F. Piggyback Bracket G. Tube Rings H. Telescope Main Body Primary Mirror Position MOUNT / TRIPOD 1.
- Page 4 MAKSUTOV & SCHMIDT-CASSEGRAIN MANUAL EQ5 PRO TUBE A. Dust Cap/Mask (Not shown remove before viewing) B. Red Dot Finder or 8x50 Viewfinder C. Focus Locking Screw D. Eyepiece E. Diagonal F. Focusing Knob MOUNT / TRIPOD 1. R.A. Lock Knob 2.
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Page 5: Table Of Contents
TABLE OF CONTENTS: EQ5 PRO Assembling Your Telescope ..........6 Tripod Set up . -
Page 6: Assembling Your Telescope
ASSEMBLING YOUR TELESCOPE TRIPOD SET UP Fig. 1 ASSEMBLING THE TRIPOD LEGS (Fig.1) 1) Slowly loosen the height adjustment clamp Fig. 2. and gently pull out the lower section of each tripod leg. Tighten the clamps to hold the legs in place. 2) Spread the tripod legs apart to stand the tripod upright. -
Page 7: Telescope Assembly
TELESCOPE ASSEMBLY ATTACHING THE TUBE RINGS TO THE MOUNT (Fig.6) 1) Remove the telescope tube assembly from its plastic packaging. 2) Remove the tube rings from the telescope by releasing their thumb nuts and opening their hinges. 3) Using the bolts provided, fasten the tube rings to Fig.6 the mount with the 10mm wrench provided. -
Page 8: Eyepiece Assembly
EYEPIECE ASSEMBLY INSERTING THE EYEPIECE (Fig.12, 13) INSERTING THE EYEPIECE (Fig.14) Reflector Refractor and Maksutov 1) Unscrew the 1) Loosen the thumbscrew on the thumbscrews on the end of the focus tube. end of the focus tube 2) Insert the diagonal into the focus to remove the black tube and re-tighten the plastic end-cap. -
Page 9: Operating Your Telescope
OPERATING YOUR TELESCOPE These fixed magnification scopes mounted on the optical tube are very useful accessories. When they are correctly aligned with the telescope, objects can be quickly located and brought to the centre of the field. Alignment is best done outdoors in Fig.a day light when it's easier to locate objects. -
Page 10: Balancing The Telescope
A Telescope should be balanced before each observing session. Balancing reduces stress on the telescope mount and allows precise control of micro-adjustment. A balanced telescope is specially critical when using the optional clock drive for astrophotography. The telescope should be balanced after all accessories (eyepiece, camera, etc.) have been attached. -
Page 11: Operating The Eq5 Mount
The EQ5 mount has controls for both conventional altitude (up-down) and azimuth (left-right) directions of motion. These two adjustments are suggested for large direction changes and for terrestrial viewing. The two azimuth adjustment knobs located near the tripod head allow fine-adjustment of azimuth for polar alignment. Use the altitude adjustment T-bolts for altitude adjustments. -
Page 12: Using The Barlow Lens
Fig.g A Barlow is a negative lens which increases the magnifying power of an eyepiece, while reducing the field of view. It Eyepiece expands the cone of the focussed light before it reaches the focal point, so that the telescope's focal length appears Barlow longer to the eyepiece. -
Page 13: Tracking Celestial Objects
Big Dipper Polaris, the "Pole Star" is less than one degree from the North Celestial Pole (NCP). Because it is not exactly at the NCP, Polaris appears to trace a small circle around it as the Earth rotates. Polaris Fig.i1 is offset from the NCP, toward Cassiopeia and away from the end of the handle of the Big Dipper (Fig.i1). -
Page 14: Using The Setting Circles
The quickest way to find objects is to learn the Constellations and use the finderscope, but if the object is too faint you may Setscrew want to use setting circles on an equatorial mount. Setting circles enable you to locate celestial objects whose celestial Pointer co-ordinates have been determined from star charts. - Page 15 The Polar Alignment Finderscope or 'polarscope' gives Northern Hemisphere users a convenient tool for pointing at the NCP. It has a large circle circumscribing the path of Polaris, with the NCP located at the crosshair, and it has a smaller circle to indicate the direction of Polaris. However, the Earth rotates and the orientation of the stars changes, so a method is needed to obtain the correct alignment of Polaris in the polarscope, for the date and time of your viewing session.
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Page 16: Using The Polarscope (Optional)
Once you have it inserted you will have to centre it. The easiest way to do this is to lower the mount head in azimuth and sight on a distant object in daylight. This may involve taking out the latitude t-screw, shortening one leg, or both to get the head down low enough. -
Page 17: Pointing Your Telescope
A German Equatorial mount has an adjustment, sometimes called a wedge, which tilts the mount's polar axis so that it points at the appropriate Celestial Pole (NCP or SCP). Once the mount has been polar aligned, it needs to be rotated around only the polar axis to keep an object centred. Do not reposition the mount base or change the latitude setting. - Page 18 Pointing to the NCP Celestial Pole For the following examples, it is assumed that the observing site is in the Northern Fig.n Hemisphere. In the first case (Fig.n2), the optical tube is pointing to the NCP. This is its probable position following the polar-alignment step.
- Page 19 Pointing to directions other than due North Pointing in any direction other than due North requires a combination of R.A. and Dec Examples of the telescope moved in R.A. and Dec Fig.p positions (Fig.p). This can be visualized as a series of Dec arcs, each resulting from the position of rotation of the R.A.
- Page 20 Telescopes with long focal lengths often have a "blind spot" when pointing near the zenith, because the eyepiece-end of the optical tube bumps into the mount's legs (Fig.r1). To adapt for this, the optical tube can be very carefully slipped up inside the tube rings (Fig.r2).
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Page 21: Choosing The Appropriate Eyepiece
Calculating the magnification (power) The magnification produced by a telescope is determined by the focal length of the eyepiece that is used with it. To determine a magnification for your telescope, divide its focal length by the focal length of the eyepieces you are going to use. -
Page 22: Observing The Sky
OBSERVING THE SKY Sky conditions are usually defined by two atmospheric characteristics, seeing, or the steadiness of the air, and transparency, light scattering due to the amount of water vapor and particulate material in the air. When you observe the Moon and the planets, and they appear as though water is running over them, you probably have bad "seeing"... -
Page 23: Proper Care For Your Telescope
PROPER CARE FOR YOUR TELESCOPE Fig.s Collimation is the process of aligning the mirrors of your telescope so that they work in concert with each other to deliver properly focused light to your eyepiece. By observing out-of-focus star images, you can test whether your telescope's optics are Correctly aligned Needs collimation aligned. - Page 24 You will have to alternately loosen one and then compensate for the slack by tightening the other two. Stop when you see all three mirror clips (Fig.s4). Make sure that all three small alignment screws are tightened to secure the secondary mirror in place.
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Page 25: Collimating A Refractor (With The Adjustable Objective-Lens Cell)
Collimation is the process of aligning the lenses of your telescope so that the light they collect will focus at the right spot at the back of Fig.t your telescope for your eyepieces to work. Collimation is a simple process and works like this: Pull off the dew cap at the front of your telescope and look into the scope. -
Page 26: Appendices
APPENDIX A – STANDARD TIME ZONES OF THE WORLD... -
Page 27: Appendix B - Optional Accessories
APPENDIX B – OPTIONAL ACCESSORIES LONG EYE-RELIEF EYEPIECES These multi-coated eyepieces provide a generous 20mm eye relief, and all focal lengths including the 2mm model feature particularly wide diameter eye lenses for maximum viewing comfort. These eyepieces are especially valuable for spectacle wearers, as the long eye relief allows the entire field to be viewed whilst spectacles are being worn. -
Page 28: Appendix C - Recommended Reading
APPENDIX C – RECOMMENDED READING Beginner's Guide to Amateur Astronomy: An The Great Atlas of the Stars by Serge Brunier, Owner's Manual for the Night Sky by David J. Eicher Constellation photography by Akira Fujii (Firefly and, Michael Emmerich (Kalmbach Publishing Co., Books;... -
Page 29: Appendix D - Glossary
APPENDIX D – GLOSSARY Eyepiece bsolute Magnitude Also called an ocular. This is a small tube that contains the lenses needed to bring a telescope's The apparent brightness a star would have if placed focus to a final image in the eye. Telescopes usually at a distance of 10 parsecs from the earth. - Page 30 agnifying Power etting Circles The amount by which a system increases the Circular scales attached to the telescope. They are apparent size of objects. Magnification is determined marked off in degrees of Declination and hours of by dividing the Focal Length of the telescope by the Right Ascension.
- Page 31 NEVER USE YOUR TELESCOPE TO LOOK DIRECTLY AT THE SUN. PERMANENT EYE DAMAGE WILL RESULT. USE A PROPER SOLAR FILTER FIRMLY MOUNTED ON THE FRONT OF THE TELESCOPE FOR VIEWING THE SUN. WHEN OBSERVING THE SUN, PLACE A DUST CAP OVER YOUR FINDERSCOPE OR REMOVE IT TO PROTECT YOU FROM ACCIDENTAL EXPOSURE.
- Page 32 ©2008 Sky-Watcher USA. All rights reserved.