Orion 100 EQ Manuel d'utilisateur

INSTRUCTION MANUALIN 191 Rev. A 07/02Providing Exceptional Consumer Optical Products Since 1975Customer Support (800)676-1343E-mail: support@telescope

10without any manual adjustment of the R.A. slow-motion con-trol. A motor drive system is necessary for astrophotography.Understanding the Setting Cir

11To point the telescope to the east or west, or in other direc-tions, you rotate the telescope on its R.A. and Dec. axes.Depending on the altitude of

12Calculating Magnification (Power)To calculate the magnification, or power, of a telescope withan eyepiece, simply divide the focal length of the tel

13What to ExpectSo what will you see with your telescope? You should be ableto see bands on Jupiter, the rings of Saturn, craters on themoon, the waxi

14years by professional and amateur astronomers alike. Keep inmind, as with any new task, that starhopping may seem chal-lenging at first, but will be

158. CollimationThe AstroView 100 EQ telescope has objective lens cellwhich incorporates a collimation adjustment; this helps toensure peak optical pe

16lenses of your eyepieces or finderscope. Never use regularglass cleaner or cleaning fluid designed for eyeglassesBefore cleaning with fluid and tiss

2Figure 1. The AstroView 100 EQ Reflector.Finder scopeFinder scope bracketEyepieceStar diagonalFocus knobDeclination slow-motion control cableRight As

3Table of Contents1. Parts list . . . . . . . . . . . . . . . . . . . . . . . . .32. Assembly . . . . . . . . . . . . . . . . . . . . . . . . .33. Ge

44. Next, tighten the wingnuts at the top of the tripod legs, sothe legs are securely fastened to the equatorial mount.Use the wrench and your fingers

See Part 4 for more information about the R.A. and decli-nation axes.11.Install the polar axis finder scope into its housing inside theR.A. axis of th

6Now when you loosen the lock lever on one or both axes andmanually point the telescope, it should move without resist-ance and should not drift from

7time. That apparent motion is caused by the Earth’s rotation(from west to east). An equatorial mount (Figure 6) isdesigned to compensate for that mot

84. Move the tripod so the telescope tube (and R.A. axis)points roughly at Polaris. If you cannot see Polaris directlyfrom your observing site, consul

96. Look through the polar finder at a distant object (during theday) and center it in the crosshairs.You may need to adjustthe latitude adjustment T-