Bedienungsanleitung Celestron CGE Pro 925 (Seite 20 von 72) (Englisch)

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Select one of the alignment methods as described below.

Note: If incorrect information is entered into the hand control, the UNDO button acts like a back space button allowing the

user to re-enter the correct data.

Two-Star Align allows the user to select two stars on which to align the telescope. To align your telescope using the Two-Star

Align method:

1. Select Two-Star Align from the alignment choices given. Based on the date and time information entered, the hand

control will automatically select and display a bright star that is above the horizon.

 Press ENTER to select this star as your first alignment star.

 If for some reason the chosen star is not visible (perhaps behind a tree or building) press UNDO to have the

hand control automatically select the next brightest star.

 Or you can use the Up/Down keys to browse the entire Named Star list and select any one of over two hundred

alignment stars.

2. Once the telescope is finished slewing to your first alignment star, the display will ask you to use the arrow buttons to

align the selected star with the cross hairs in the center of the finderscope. When centered in the finder, press ENTER.

3. The display will then instruct you to center the star in the field of view of the eyepiece. When the star is centered,

press ALIGN to accept this star as your first alignment star.

4. After the first alignment star has been entered the hand control will automatically

select a second alignment star and have you repeat this procedure for that star.

When the telescope has been aligned on both stars the display will ask you if you wish

to add additional calibration stars. Calibration stars are used to improve the pointing

accuracy of your telescope by compensating for subtle opto-mechanical

misalignments between the telescope optics and the mount. Therefore it is usually a

good idea to add at least one additional calibration star to improve the telescope’s

pointing accuracy.

5. Press ENTER to select a calibration star. Select a star the same way you did with

the first two alignments stars and pres ENTER. You will notice that all the

calibration stars displayed are located on the opposite side of the side of the sky

(Meridian) as the original alignment stars. This is essential for an accurate

calibration of the mount.

Finally you can chose to continue to add additional calibration stars or Press UNDO to

complete the alignment.

Tips for adding calibration stars:

 Although for casual observing it is not necessary to add calibration stars, it

is recommended that you add as many as three calibration stars for optimal

point accuracy.

 Calibration stars that are near the equator offer the best results than stars near the poles.

 Although it is not be necessary to use calibration stars if the telescope mount has not been moved since its

original alignment/calibration, it may be necessary to recalibrate the telescope if the optical tube has been

removed for any reason.

One-Star Alignment works much the same way as Two-Star Align but uses only a single star in the sky for alignment. This

method of alignment is not as accurate as the two-star alignment and is recommended only for telescopes that are permanently

and accurately polar aligned.

East/West (E/W) Filtering

In order to ensure the best

possible full sky pointing

accuracy, your computerized

telescope automatically filters

and chooses its initial

alignment stars so that the first

two alignment stars are located

on one side of the Meridian

and any calibration stars are on

the opposite side of the

Meridian, as indicated by the

"W" or "E" displayed in the

upper-right corner of the LCD.

East/West filtering can be

changed simply by pressing

the MENU button at any time

during the alignment process.

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Celestron CGE Pro 925 Seite 20

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