ORION TELESCOPES & BINOCULARS SkyView Pro 100 EQ 9864 Instruction Manual
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ORION TELESCOPES & BINOCULARS SkyView Pro 100 EQ 9864 Instruction Manual

Equatorial refractor telescope
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INSTRUCTION MANUAL
Orion
®
SkyView
Pro 100 EQ
™
#9864
Equatorial Refractor Telescope
Customer Support (800) 676-1343
E-mail: support@telescope.com
Corporate Offices (831) 763-7000
P.O. Box 1815, Santa Cruz, CA 95061
Providing Exceptional Consumer Optical Products Since 1975
IN 190 Rev. A 09/02

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Summary of Contents for ORION TELESCOPES & BINOCULARS SkyView Pro 100 EQ 9864

  • Page 1 INSTRUCTION MANUAL Orion ® SkyView Pro 100 EQ ™ #9864 Equatorial Refractor Telescope Customer Support (800) 676-1343 E-mail: support@telescope.com Corporate Offices (831) 763-7000 P.O. Box 1815, Santa Cruz, CA 95061 Providing Exceptional Consumer Optical Products Since 1975 IN 190 Rev. A 09/02...
  • Page 2 Objective lens Tube rings Finder scope Declination lock lever Finder scope bracket (opposite side) Right Ascension lock lever (opposite side) Eyepiece Declination slow-motion control knob Safety thumbscrew 90° Star Diagonal Mounting plate securing knob Focus wheel Counterweight shaft Right Ascension slow-motion control knob Counterweight Latitude scale...

  • Page 3: Table Of Contents

    ® ongratulations on your purchase of an Orion telescope. Your new SkyView Pro 100 EQ is designed for high-resolution viewing and astrophotography of astronomical objects. With its precision optics and stur- dy equatorial mount, you’ll be able to enjoy hundreds of fascinating celestial denizens. These instructions will help you set up, properly use, and care for your telescope.
  • Page 4 Finder scope bracket Nylon alignment thumbscrews Finder scope Azimuth adjustment Post knobs Tensioner Focus lock ring Figure 2. Orient the equatorial mount so that the post on the tripod head lines up between the azimuth adjustment knobs on the equatorial mount. Figure 3a.

  • Page 5: Balancing The Telescope

    ® Figure 4a, 4b. Proper operation of the equatorial mount requires that the telescope tube be balanced on the R.A. axis. (a) With the R.A. lock lever released, slide the counterweights along the counterweight shaft until it just counterbalances the tube. (b) When you let go with both hands, the tube should not drift up or down.
  • Page 6 the thumbscrews, the spring in the bracket’s tensioner moves in and out to keep the finder scope secure in the bracket. The finder scope must be aligned accurately with the tele- scope for proper use. To align it, first aim the main telescope at an object at least a 1/4 mile away—the top of a telephone pole, a chimney, etc.

  • Page 7: Setting Up And Using The Equatorial Mount

    ® The SkyView Pro 100 EQ has a focal length of 600mm, which ferent wavelengths (color) is bent by different amounts. This is when used with the supplied 25mm eyepiece yields: a problem that plagues refractor-type telescopes, since light passes through both air and glass to form an image. Most 600mm÷25mm= 24x astronomical objects emit a spectrum comprised of many dif- The magnification provided by the 10mm eyepiece is:...
  • Page 8 Dec. slow-motion control knob Dec. setting circle Dec. lock lever R.A. setting circle Front opening Polar axis finder scope (optional) R.A. lock lever Latitude scale R.A. slow-motion (opposite side) control knob Latitude adjustment L-bolts Figure 6. The SkyView Pro mount. Azimuth adjustment Little Dipper...
  • Page 9 Eyepiece Alignment Objective focus ring set screws (3) lens Focus lock ring Figure 9a. Figure 9b. The optional polar axis finder scope. Installing the optional polar axis finder scope. ment. The telescope should be moved only about its R.A. and Dec.
  • Page 10 up-and down until Polaris is somewhere within the field of the knobs, you must manually “slew” the mount to point the view of the polar axis finder scope. telescope in the vicinity of the desired target. Do this by loos- ening the R.A.
  • Page 11 Finding Objects With the Setting Circles Dec. setting circle Now that both setting circles are calibrated, look up in a star R.A. atlas the coordinates of an object you wish to view. Dec. setting circle setting circle 1. Loosen the Dec. lock lever and rotate the telescope until thumbscrew the declination value from the star atlas matches the read- ing on the Dec.

  • Page 12: Astronomical Observing

    Figure 13. Megrez connects the Big Dipper’s handle to it's “pan”. It is a good guide to how conditions are. If you can not see Megrez (a 3.4 mag star) then conditions are poor. head, worst at the horizon. Also, seeing generally gets better after midnight, when much of the heat absorbed by the Earth during the day has radiated off into space.
  • Page 13 telescope outdoors in a shed or garage greatly reduces the are quite small, yet are somewhat bright, so higher power may amount of time needed for the optics to stabilize. It also is a show more detail. good idea to keep the scope covered until the Sun sets so the The best rule of thumb with eyepiece selection is to start with tube does not heat greatly above the temperature of the out- a low power, wide field, and then work your way up in magnifi-...
  • Page 14 C. The Planets skills get sharper, you will be able to ferret out more and more subtle details and structure. The planets don’t stay put like the stars, so to find them you should refer to Sky Calendar at our website telescope.com, or How to Find Deep-sky Objects: Starhopping to charts published monthly in Astronomy, Sky &...

  • Page 15: Terrestrial Observing

    Moon Photography This is perhaps the simplest form of astrophotography, as no motor drive is required. All that is needed is a T-ring for your specific camera model. Attach the T-ring to your camera body and thread the T-ring directly onto the focuser drawtube. Point the telescope toward the Moon, and center it within the cam- era’s viewfinder.

  • Page 16: Collimating (Aligning The Optics)

    On the top of one of the tube rings is a piggyback camera adapter. This is the black knob with the threaded shaft pro- truding through it. The tube ring with the piggyback adapter should be closest to the open end of the telescope tube. Remove the tube rings from the equatorial mount and swap their position if necessary.

  • Page 17: Care And Maintenance

    should be kept in a protective box or storage case. Keep the dust cover on the front of the telescope when not in use. Your SkyView Pro 100 EQ requires very little mechanical maintenance. The optical tube is aluminum and has a smooth Pair of collimating painted finish that is fairly scratch-resistant.
  • Page 20 One-Year Limited Warranty This Orion SkyView Pro 100 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.

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