User manual ORION TELESCOPES & BINOCULARS SVP EQMOUNT 9829

[. . . ] INSTRUCTION MANUAL Orion® SkyView ProTM EQ Mount #9829 Customer Support (800)-676-1343 E-mail: support@telescope. com Corporate Offices (831)-763-7000 Providing Exceptional Consumer Optical Products Since 1975 P. O. Box 1815, Santa Cruz, CA 95061 IN 195 Rev. B 03/06 Declination lock lever (opposite side) Right ascension lock lever (opposite side) Declination slow-motion control-knob Safety thumbscrew Mounting plate securing knob Tube ring mounting plate Counterweight shaft Counterweights Right ascension slow-motion control knob Latitude scale Latitude adjustment L-bolts Counterweight lock knobs Center support shaft Tripod support tray Tripod leg Leg lock knobs Figure 1. 2 Congratulations on your purchase of a quality Orion mount. [. . . ] lock lever and rotate the optical tube on the declination axis so that the tube is at a 90° to the right ascension axis (Figure 8). Look through the polar finder at a distant object (during the day) and center it in the crosshairs. You may need to adjust the latitude adjustment L-bolts and the tripod position to do this. Rotate the mount 180° about the R. A. Again, it may be convenient to remove the counterweights and optical tube first. Is the object being viewed still centered on the crosshairs?If it is, then no further adjustment is necessary. If not, then look through the polar finder while rotating the mount about the R. A. You will notice that the object you have previously centered moves in a circular path. Use the three alignment setscrews on the polar axis finder to redirect the crosshairs of the polar finder to the apparent center of this circular path. Repeat this procedure until the position that the crosshairs point to does not rotate off-center when the mount is rotated in R. A. Once this is accomplished, retighten the thumbscrews. 6 Cassiopeia and the Big Dipper in the reticle. They do not appear in scale, but they indicate the general positions of Cassiopeia and the Big Dipper relative to the north celestial pole (which is indicated by the cross at the center of the reticle). Rotate the reticle so the constellations depicted match their current orientation in they sky when viewed with the naked eye. lock lever and rotate the main telescope around the R. A. axis until the reticle is oriented with sky. For larger optical tubes, you may need to remove the tube from the mount to prevent it from bumping into the mount. Once the reticle is correctly oriented, use the right ascension lock lever to secure the mount's position. Now use the azimuth adjustment knobs (Figure 2) and the latitude adjustment L-bolts (Figure 4) on the mount to position the star Polaris inside the tiny circle marked "Polaris" on the finder's reticle. You must first loosen the knob underneath the equatorial mount on the center support shaft to use the azimuth adjustment knobs. Once Polaris is properly positioned within the reticle, you are precisely polar aligned. The optical tube must be at a 90° angle to the right ascension axis in order to view through the polar axis finder If you do not have a clear view of Polaris from your observing site, you will not be able to use the polar-axis finder to precisely polar align the telescope. [. . . ] Use the slow-motion controls to center the object in the finder scope, and it should appear in the telescope's field of view. The setting circles must be re-calibrated every time you wish to locate a new object. Do so by calibrating the setting circles for the centered object before moving on to the next one. Beginners occasionally experience some confusion about how to point the telescope overhead or in other directions. [. . . ]