ORION TELESCOPES & BINOCULARS Observer 70mm Altaz 9801 Instruction Manual
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ORION TELESCOPES & BINOCULARS Observer 70mm Altaz 9801 Instruction Manual

Altazimuth refractor telescope
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INSTRUCTION MANUAL
Orion
®
Observer
70mm Altaz
™
#9801
Altazimuth 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 095 0898

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Summary of Contents for ORION TELESCOPES & BINOCULARS Observer 70mm Altaz 9801

  • Page 1 INSTRUCTION MANUAL Orion ® Observer 70mm Altaz ™ #9801 Altazimuth 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 095 0898...
  • Page 2 Objective lens Finder scope Dew cap/glare shield Finder scope bracket Yoke knob Focuser drawtube Altitude lock knob Eyepiece Altazimuth yoke mount Azimuth lock knob Star diagonal Focus knob Altitude micro- motion thumbwheel Tripod leg attachment bolt Altitude micro- motion rod Accessory tray Accessory tray bracket Tripod leg...
  • Page 3 ongratulations on your purchase of a quality Orion telescope. Your new Observer 70mm Altazimuth Refractor is designed primarily for astronomical viewing, but can also be used for terrestrial observation (with the recommended addition of an image-erecting prism). If you have never used a telescope before, we would like to welcome you to amateur astronomy. Take some time to familiarize yourself with the night sky.

  • Page 4: Aligning The Finder Scope

    During assembly (and anytime, for that matter), DO NOT loosen the two small hex nuts at the base of the bolts, as touch any of the lenses of the telescope, finder scope, or eye- they keep them from falling into the optical tube. pieces, or the mirror of the diagonal, with your fingers.

  • Page 5: Using Your Telescope

    One way to minimize any misalignment is to keep the find- 2. Note that the altitude micro-motion thumbwheel has a lim- er scope bracket tightly fastened to the main telescope. ited range of movement. If you reach the end of the travel range, loosen the altitude lock bolt and rotate the thumb- 7.

  • Page 6: Astronomical Viewing

    ing advertising gimmick and should be dismissed. The In conditions of good seeing, star twinkling is minimal and Observer 70mm Altazimuth Refractor, with its 70mm-diameter images appear steady in the eyepiece. Seeing is best over- (2.8") objective lens, is capable of a maximum useful magnifi- head, worst at the horizon.

  • Page 7: Terrestrial Viewing

    The Planets Note: Remember that the higher the magnification you use, the dimmer the image will appear. So stick with low The planets don’t stay put like the stars, so you’ll have to refer power when observing deep-sky objects because they’re to charts published monthly in Astronomy, Sky &...

  • Page 8: Specifications

    optics. Place a few drops of fluid on the tissue (not directly on 9. Suggested Accessories the lens), wipe gently, then remove the fluid with a dry tissue or two. Do not “polish” or rub hard when cleaning the lens, as Soft Carrying &...

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