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Related Manuals for ORION TELESCOPES & BINOCULARS AstroView 90mm EQ 9024
Summary of Contents for ORION TELESCOPES & BINOCULARS AstroView 90mm EQ 9024
- Page 1 INSTRUCTION MANUAL Orion ® AstroView 90mm EQ ™ #9024 Equatorial Refracting 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 112 Rev. C 05/02...
- Page 2 Piggyback camera adapter Tube mounting rings Finder scope bracket Tube ring mounting plate Finder scope Dec. lock knob Alignment screws (2) Dec. setting circle Eyepiece R.A. lock knob Star diagonal R.A. slow-motion control Focus knob Counterweight lock knob Dec. slow-motion control Counterweight shaft R.A.
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Page 3: Table Of Contents
ongratulations on your purchase of a quality Orion telescope. Your new AstroView 90mm EQ Refractor is designed for high-resolution viewing of astronomical objects. With its precision optics and equatorial mount, you’ll be able to locate and enjoy hundreds of fascinating celestial denizens, including the planets, Moon, and a variety of deep-sky galaxies, nebulas, and star clusters. - Page 4 Alignment thumbscrews Focus lock-ring Tensioner Figure 2a. Figure 2b. The 6x30 finder scope and bracket Inserting the finder scope into the finder scope bracket apart enough to connect each end of the accessory tray equatorial mount (at the base of the declination axis) with bracket to the attachment point on each leg.
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Page 5: Balancing The Telescope
Figure 3a. Figure 3b. Balancing the telescope with respect to the R.A.axis The telescope is now balanced on the R.A. axis. by sliding the counterweight along its shaft. That-is, when hands are released, the counterweight shaft remains horizontal Figure 3c. Figure 3d. -
Page 6: Aligning The Finder Scope
3. Retighten the counterweight lock knob. The telescope is Once the target object is centered on the crosshairs of the now balanced on the R.A. axis. finder scope, look again in the main telescope’s eyepiece and see if it is still centered there as well. If it isn’t, repeat the 4. - Page 7 Declination (Dec.) setting circle R.A. lock knob Right ascension (R.A.) setting circle Declination (Dec.) Right ascension (R.A.) slow motion control slow motion control Latitude adjustment T-bolt Latitude locking T-bolt Azimuth lock knob Latitude scale Figure 4. The equatorial mount. 1. Level the equatorial mount by adjusting the length of the three tripod legs.
- Page 8 aligned, the object should be visible somewhere in the field equator. When the telescope is pointed north of the celestial of view. equator, values of the Dec. setting circle are positive, and when the telescope is pointed south of the celestial equator, Once the object is visible in the telescope’s eyepiece, use values of the Dec.
- Page 9 Figure 6a. Figure 6b. Telescope pointing south. Note that in all these Telescope pointing north. illustrations, the mount and tripod remain stationary; only the R.A. and Dec. axes are moved. Figure 6c. Telescope pointing east. Figure 6d. Telescope pointing west. The R.A.
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Page 10: Using Your Telescope-Astronomical Observing
Depending on the altitude of the object you want to observe, Beware, too, that nearby porch lights, streetlights, and car the counterweight shaft will be oriented somewhere between headlights will ruin your night vision. vertical and horizontal. Aiming the Telescope Figure 6 illustrates how the telescope will look pointed at the To view an object in the main telescope, first loosen both the four cardinal directions—north, south, east, and west. - Page 11 manufacturers are a misleading advertising gimmick and hundreds of deep sky objects. Do not expect to see color should be dismissed. Keep in mind that at higher powers, an as you do in NASA photos, since those are taken with long- image will always be dimmer and less sharp (this is a funda- exposure cameras and have ‘false color’...
- Page 12 are good, you may be able to resolve thin cloud bands on the planet’s disk. SATURN The ringed planet is a breathtaking sight when it is well positioned. The tilt angle of the rings varies over a period of many years; sometimes they are seen edge-on, while at other times they are broadside and look like giant “ears”...
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Page 13: Astrophotography
you can increase the magnification later by using a higher- Using the finder scope, point the telescope at this star and center it on the crosshairs. Next, look again at the star chart power eyepiece. Then connect the entire camera adapter, and find another suitably bright star near the bright star cur- with eyepiece inside, to the T-ring. -
Page 14: Terrestrial Viewing
ter another guide star on the eyepiece’s crosshairs. Once the telescope outdoors, although storage in a garage or shed is object is centered in the camera, and a guide star is centered OK. Small components like eyepieces and other accessories in the eyepiece, you’re ready to shoot. - Page 16 One-Year Limited Warranty This Orion AstroView 90 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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