ORION TELESCOPES & BINOCULARS Skywatcher 120 EQ 9026 Instrucion Manual

13, ORION TELESCOPES & BINOCULARS Skywatcher 120 EQ 9026 13 is judged by the magnitude of the faintest stars you can see with the unaided eye (6th magnitude or fainter is desirable). Note About Chromatic Abberation Chromatic abberation literally means color distortion. Whenever light passes through one material to another, light of differe…

11, 11 c. d. Figure 10. This illustration shows the telescope pointed in the four cardinal directions: (a) north, (b) south, (c) east, (d) west. Note that the tripod and mount have not been moved; only the telescope tube has been moved on the R.A. and Dec. axes. a. b. To point the telescope to the …

8, 8 pole (NCP), which is an extension of the Earth’s rotational axis out into space. Stars in the Northern Hemisphere appear to revolve around Polaris. To find Polaris in the sky, look north and locate the pattern of the Big Dipper (Figure 8). The two stars at the end of the “bow…

5, 5 12.To place the finder scope in the finder scope bracket, first unthread the two black nylon screws until the screw ends are flush with the inside diameter of the bracket. Place the O-ring that comes on the base of the bracket over the body of the finder scope until it seats into the slot on t…

6, 6 2. Now loosen the counterweight lock thumbscrews and slide the weights along the shaft until they exactly coun- terbalance the telescope (Figure 5a) That’s the point at which the shaft remains horizontal even when you let go with both hands (5b). 3. Retighten the counterweight lock thumbscrew…