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instruction Manual
®
orion
™
skyView Pro 80mm ED EQ
Equatorial Apochromatic Refractor Telescope
#9884
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oriont elescopes.com
Providing Exceptional Consumer Optical Products Since 1975
IN 223 Rev. C 04/09
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Finder scope Finder scope bracket 1/4"-20 Mounting block Tube ring Tube ring Tube ring mounting plate Declination slow-motion control knob Eyepiece Declination lock knob 1.25" Right ascension Adapter lock knob Right ascension slow- 2" Star diagonal Focus knob motion control knob Counterweight shaft Counterweight Latitude adjustment Counterweight L-bolts lock knob “Toe saver” Tripod support tray Figure 1. The SkyPro 80mm ED EQ. 2
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Congratulations on your purchase of a quality Orion telescope. Your new SkyView Pro 80mm ED EQ is an exceptional instrument for observing and imaging astronomical objects. The ED glass of the objec- tive lens ensures you’ll enjoy star, Moon, and planetary images with far less color distortion than seen in standard refractors. Other features, such as the smooth Crayford focuser, precision machined lens cell, and deluxe aluminum focusing wheels also attest to the overall high quality of the tel
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1. Stand the tripod legs upright and spread the legs out as far pass through the hole. Position the counterweight about as they will go. Keep the tripod legs at their shortest (fully halfway up the shaft and tighten the lock knob. Replace the retracted) length, for now; you can extend them to a more toe saver at the end of the bar. The toe saver prevents the desirable length later, after the scope is fully assembled. counterweight from falling on your foot if the lock knob hap- pens to
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Finder scope bracket Focuser drawtube Thumb screws Nylon alignment thumbscrews Finder scope Camera adapter Tensioner Figure 4. Before installing the 2" star diagonal, you must remove Focus lock ring the camera adapter that comes attached to the telescope. 1.25" Barrel diameter eyepiece 2" Barrel diameter eyepiece 1.25" Adapter (optional) Figure 3a. The 8x40 finder scope. 2" Star diagonal 5a. 5b. Figure 5a. and 5b. To use 1.25" barrel diameter eyepieces, the 1.25" adapter mu
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scope (Figure 6a). That’s the point at which the shaft fingers, slowly rotate one of the focus knobs until the object remains horizontal even when you let go with both hands comes into sharp focus. Go a little bit beyond sharp focus until (Figure 6b). the image just starts to blur again, then reverse the rotation of the knob, just to make sure you’ve hit the exact focus point. 3. Retighten the counterweight lock knob. The telescope is now balanced on the right ascension axis. Note: The
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aligning the Finder scope Magnification & Eyepieces The SkyView Pro 80mm ED EQ comes with a 8x40 achromat- Magnification, or power, is determined by the focal length of ic finder scope (Figure 3a). The number 8 means eight-times the telescope and the focal length of the eyepiece. Therefore, magnification and the 40 indicates a 40mm diameter front by using eyepieces of different focal lengths, the resultant lens. The finder scope makes it easier to locate the object you magnification can be va
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Declination Axis faint. Many observers own at least one 2" eyepiece in order to 6. setting up and using the achieve the widest field of view possible for deep sky-observ- ing. The expansive view will make you feel like you’re floating Equatorial Mount in space! When you look at the night sky, you no doubt have noticed To use 2" eyepieces, simply loosen the thumb screw on the that the stars appear to move slowly from east to west over star diagonal that secures the 1.25" adapter, and re
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at the North Star, or Polaris. It lies within 1° of the north celes- From this point on in your observing session, you should not tial pole (NCP), which is an extension of the Earth’s rotational make any further adjustments to the latitude of the mount, nor axis out into space. Stars in the Northern Hemisphere appear should you move the tripod. Doing so will undo the polar align- to revolve around the NCP. ment. The telescope should be moved only about its R.A. and Dec. axes. To find Polaris
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will allow you to view through the mount with the polar axis ly positioned within the reticle, you are precisely polar finder scope. aligned. Retighten the knob underneath the equatorial mount. 3. Remove the cap on the front of the equatorial mount (Figure 8). Focus the polar finder by rotating the eyepiece. Now, From this point on in your observing session, you should not sight Polaris in the polar axis finder scope. If you have fol make any further adjustments in the azimuth or the lat
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appear to move faster at higher magnifications, because the That’s 5 hours and 35.4 minutes in right ascension, and -5 field of view is narrower. degrees and 27 arc-minutes in declination (there are 60 arc- minutes in 1 degree of declination). optional Motor Drives for automatic t racking Before you can use the setting circles to locate objects, the An optional DC motor drive can be mounted on the R.A. mount must be accurately polar aligned, and the setting cir- axis of the equatorial mount
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The setting circles must be re-calibrated every time you wish To point the telescope directly south, the counterweight shaft to locate a new object. Do so by calibrating the setting circles should again be horizontal. Then you simply rotate the scope for the centered object before moving on to the next one. on the declination axis until it points in the south direction. To point the telescope to the east or west, or in other direc- confused about Pointing the t elescope? tions, you rotate the
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Eyepiece selection By using eyepieces of varying focal lengths, it is possible to attain many magnifications with the SkyView Pro 80mm ED EQ. The telescope comes with two high-quality Sirius Plössl eyepieces: a 25mm, which gives a magnification of 24x, and a 10mm, which gives a magnification of 60x. Other eyepieces can be used to achieve higher or lower powers. It is quite com- mon for an observer to own five or more eyepieces to access a wide range of magnifications. This allows the obser
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Even at partial phases, the Moon is very bright. Use of an disk with some distinct dark patches, and you might be able optional Moon filter to helps to dim the view. It simply threads to spot a whitish polar ice cap. To see surface detail on Mars, onto the bottom of the eyepiece. You’ll find the Moon filter you will need a high power eyepiece and very steady air! improves viewing comfort, and helps bring out the subtle fea- D. the stars tures of the lunar surface. Stars will appear as tiny poi
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Determine in which constellation the object lies. Now, find the 8. t errestrial observing constellation in the sky. If you do not recognize the constella- tions on sight, consult a planisphere. The planisphere gives The SkyView Pro 80mm ED optical tube can be used for long- an all-sky view and shows which constellations are visible on distance viewing over land. For this we recommend using an a given night at a given time. optional 1.25" 45° correct-image diagonal instead of the pro- vided
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camera can vibrate the system and blur the resulting photo- ing through its own lens. Any camera lens with a focal length graphic image. between 35mm and 400mm is appropriate. On the top of one of the tube rings is a piggyback camera Moon Photography adapter. This is the black knob with the threaded shaft pro- This is perhaps the simplest form of astrophotography, as no truding through it. The tube ring with the piggyback adapter motor drive is required. Point the telescope toward the Moon,
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10. care and Maintenance 11. specifications If you give your telescope reasonable care, it will last a life- Objective lens: Apochromatic, rear element made of ED time. Store it in a clean, dry, dust-free place, safe from rapid glass, air-spaced changes in temperature and humidity. Do not store the tele- Objective lens coating: Fully multi-coated scope outdoors, although storage in a garage or shed is OK. Objective lens diameter: 80mm (3.1") Small components like eyepieces and other accessorie
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one‑Year limited Warranty This Orion SkyView Pro 80mm ED EQ is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defective, provided it is returned postage paid to: Orion Warranty Repair, 89 Hangar Way, Watsonville, CA 95076.
