Orion 9877 User Manual

INSTRUCTION MANUALIN 215 Rev. A 11/02Providing Exceptional Consumer Optical Products Since 1975Customer Support (800)676-1343E-mail: support@telescope

10R.A. slow-motion control knob clockwise. The Dec. slow-motion control knob is not needed for tracking. Objects willappear to move faster at higher m

Confused About Pointing the Telescope?Beginners occasionally experience some confusion abouthow to point the telescope overhead or in other directions

lution or other conditions that are hindering your viewing(Figure 13).C. Cooling the TelescopeAll optical instruments need time to reach “thermal equi

can merely be a pretty image someone gave to you.The otheris an experience you will never forget!A. The MoonWith is rocky and cratered surface, the Mo

14Determine in which constellation the object lies. Now, find theconstellation in the sky. If you do not recognize the constella-tions on sight, consu

15loosen the securing thumbscrews. The finder scope andbracket can be removed together by loosening the thumb-screw on the tube’s dovetail mount. Cove

16One-Year Limited WarrantyThis Orion SkyView Pro 127mm EQ is warranted against defects in materials or workmanshipfor a period of one year from the d

2Figure 1. The SkyView Pro 127mm EQ.Declination lock lever(opposite side)Right Ascension lock lever(opposite side)Declination slow-motioncontrol knobS

3Table of Contents1. Unpacking . . . . . . . . . . . . . . . . . . . . . . . 32. Parts List . . . . . . . . . . . . . . . . . . . . . . . . 33. Asse

2. Place the base of the equatorial mount into the tripodhead. Orient the equatorial mount so that the post on thetripod head lines up between the azi

5Installing the Finder ScopeTo place the finder scope (Figure 3a) in the finder scopebracket, unthread the two black nylon thumbscrews until thescrew

6If you have trouble focusing, rotate the focus knob counter-clockwise as far as it will go. Look through the eyepiece whileslowly rotating the focus

7aperture of 127 millimeters, so the maximum magnificationwould be about 254x.This level of magnification assumes youhave ideal conditions for viewing

star Sigma Octantis lies about 1° from the SCP, but it is bare-ly visible with the naked eye (magnitude 5.5).For general visual observation, an approx

9polar finder from getting bumped, which could knock it out ofalignment.Using the Polar Axis Finder Scope1. Approximately polar-align the mount as out