Bedienungsanleitung Celestron CGE Pro 925 (Seite 15 von 72) (Englisch)

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6. Slightly loosen the knobs that holds the telescope to the mounting platform and slide the telescope either forward

or backward until it remains stationary when the DEC clutch is loose. Do NOT let go of the telescope tube while

the knob on the mounting platform is loose.

7. Tighten the knobs on the telescope mounting platform to hold the telescope in place.

Like R.A. balance, these are general balance instructions and will reduce undue stress on the mount. When taking

astrophotographs, this balance process should be done for the specific area at which the telescope is pointing.

In order for a motor drive to track accurately, the telescope’s axis of rotation must be parallel to the Earth’s axis of rotation, a

process known as polar alignment. Polar alignment is achieved NOT by moving the telescope in R.A. or DEC, but by

adjusting the mount vertically, which is called altitude, and horizontally, which is called azimuth. This section simply covers

the correct movement of the telescope during the polar alignment process. The actual process of polar alignment, that is

making the telescope’s axis of rotation parallel to the Earth’s, is described later in this manual in the section on “

Polar

Alignment.”

Before adjusting the mount in altitude or azimuth you must first slightly loosen both the latitude pivot knobs and azimuth pivot

knobs. See Fig 2-16.

Adjusting the Mount in Latitude

• To increase (raise) the latitude of the polar axis, turn the rear latitude

adjustment knob clockwise.

• To decrease (lower) the latitude of the polar axis, turn the rear latitude

adjustment knob counterclockwise.

The latitude adjustment on the mount has a range from approximately

10° to 65°.

It is best to always make final adjustments in latitude by moving the

mount against gravity (i.e. raising the latitude of the mount).

Adjusting the Mount in Azimuth

For fine adjustments in azimuth:

1. Turn the azimuth adjustment knobs located on either side of the

azimuth housing (see Fig 2-16).

• Tightening the right adjustment knob (and loosening the left) moves the mount toward the right.

• Tightening the left adjustment knob (and loosening the right) moves the mount toward the left.

Both screws push off of the peg, which means you may have to loosen one screw while tightening the other in order to get the

desired movement.

Once the latitude and azimuth are correct, hand tighten the latitude pivot knobs and azimuth pivot knobs.

Keep in mind that adjusting the mount is done during the polar alignment process only. Once polar aligned, the mount should

NOT be moved. Pointing the telescope is done by moving the mount in right ascension and declination, as described earlier in

this manual.

Latitude

Adjustment

Knob

Azimuth

Adjustment

Knob

Latitude

Pivot knobs

Attachment

Knobs

Azimuth Pivot

Knobs

Figure 2-16

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