Celestron C8-NGT, C10-N manual Attaching the Telescope Tube to the Mount

Declination

Index Marks

The knob is a tension fit, so sliding it on holds it in place. As mentioned above, there are two R.A. shafts, one on either side of the mount. It makes no difference which shaft you use since both work the same. Use whichever one you find more convenient. If, after a few observing sessions, you find the R.A. slow motion knob is more accessible from the other side, pull firmly to remove the knob, then install it on the opposite side.

5.The DEC slow motion knob attaches in the same manner as the R.A. knob. The shaft that the DEC slow motion knob fits over is toward the top of the mount, just below the telescope mounting platform. Once again, you have two shafts to choose from. Use the shaft that is pointing toward the ground. This makes it easy to reach while looking through the telescope, something which is quite important when you are observing.

Attaching the Telescope Tube to the Mount

Advanced

GT Users!

tube:

The telescope attaches to the mount via a dovetail slide bar mounting bracket which is mounted along the bottom of the telescope tube. Before you attach the optical tube,

make sure that the declination and right ascension clutch knobs are tight. This will ensure that the mount does not move suddenly while attaching the telescope. To mount the telescope

In order for the GT computerized mount to function properly, before installing the optical tube, the mounting platform must be positioned so that the Declination Index Marks are aligned (see Fig 2-8).

1 Locate the mounting bracket from the box containing the equatorial mount head.

Figure 2-8

2Attach the mounting bracket to the tube rings so that the tapered (narrow) end is against the bottom of the tube rings.

3Loosen the hand knob on the side of the

CG-5 mount.

4Slide the mounting bracket that is attached to the bottom of the tube rings into the recess on the top of the mounting platform (see figure 2-9).

5Tighten the telescope mounting screw on the CG-5 mount to hold the telescope in place.

6Hand tighten the mounting platform safety screw until the tip touches the side of the mounting bracket.

NOTE: Never loosen any of the knobs on the telescope tube or mount. Also, be sure that the open end of the telescope is pointing away from the ground at all times.

Figure 2-9

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