ORION TELESCOPES & BINOCULARS AstroView 120ST EQ 9005 Instruction Manual Download Page 1

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IN 155 Rev. A 0101

Providing Exceptional Consumer Optical Products Since 1975

Customer Support (800) 676-1343
E-mail: [email protected]

Corporate Offices (831) 763-7000

P.O. Box 1815, Santa Cruz, CA 95061

INSTRUCTION MANUAL

Orion

AstroView

™

120ST EQ

#9005

Equatorial Refracting Telescope

Summary of Contents for AstroView 120ST EQ 9005

Page 1: ...Consumer Optical Products Since 1975 Customer Support 800 676 1343 E mail support telescope com Corporate Offices 831 763 7000 P O Box 1815 Santa Cruz CA 95061 INSTRUCTION MANUAL Orion AstroView 120ST...

Page 2: ...t Toe saver Tripod leg Accessory tray attachment point Accessory tray bracket Accessory tray Leg lock knob Finder scope Finder bracket Focus knob Eyepiece Star diagonal Right Ascension slow motion con...

Page 3: ...have never owned a telescope we are pleased to welcome you to amateur astronomy Take some time to familiarize yourself with the night sky Learn to recognize the patterns of stars in the major con stel...

Page 4: ...d them into the holes in the tray 5 Next tighten the wingnuts at the top of the tripod legs so the legs are securely fastened to the equatorial mount Use the larger wrench and your fingers to do this...

Page 5: ...he diagonal Always loosen the thumbscrews before rotating or removing the diagonal or an eyepiece 16 Install the polar axis finder scope into its housing inside the R A axis of the equatorial mount Fi...

Page 6: ...n the hor izontal position 5 With one hand on the telescope optical tube loosen the Dec lock lever The telescope should now be able to rotate freely about the Dec axis Loosen the tube ring clamps a fe...

Page 7: ...one at night before viewing through the telescope Choose any bright star or plan et center the object in the telescope eyepiece and then adjust the finder scope s alignment screws until the star or pl...

Page 8: ...ed it makes accurate polar align ment quick and easy to do Alignment of the polar finder need only be done once unless it gets bumped or otherwise shifts its position Remove the round cover cap from t...

Page 9: ...ent you will need to know the approximate longitude of your observing site This information can be obtained by looking at a local map Now you must figure the difference between the longitude of your o...

Page 10: ...evers on the equatorial mount so the telescope optical tube can move freely 3 Point the telescope at the bright star whose coordinates you know Center the star in the telescope s eyepiece Lock the R A...

Page 11: ...t such as streetlights porch lights and automobile headlights The glare from these lights will greatly impair your dark adapted night vision Set up on a grass or dirt surface not asphalt because aspha...

Page 12: ...ady reduce the magnification by switching to a longer focal length eyepiece As a general rule a small but well resolved image will show more detail and provide a more enjoyable view than a dim and fuz...

Page 13: ...pt for the Moon and the brighter planets it s pretty time consuming and frustrating to hunt for objects randomly without knowing where to look You should have specific tar gets in mind before you begi...

Page 14: ...inder Focus the image with the telescope s focuser Try several exposure times all less than 1 second depending on the phase of the moon and the ISO film speed of the film being used A remote shutter r...

Page 15: ...ography Remember have fun 8 Terrestrial Viewing The AstroView 120ST Refractor may also be used for long dis tance viewing over land For this application we recommend substitution of an Orion 45 Correc...

Page 16: ...y if in Orion s judgment the instrument has been abused mis handled or modified nor does it apply to normal wear and tear This warranty gives you specific legal rights and you may also have other righ...