Handleiding Celestron CGX-L EQUATORIAL (pagina 15 van 140) (Duits, Engels, Frans, Italiaans, Spaans)

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ENGLISH | 15

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.

• Choosing calibration stars that are near the celestial

equator offer the better results than stars near the

celestial poles.

• Although it is not 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.

Note: Meridian – The Meridian is an imaginary line in the

sky that starts at the North celestial pole and ends at the

South celestial pole and passes through the zenith. If you are

facing south, the meridian starts from your Southern horizon

and passes directly overhead to the North celestial pole.

Quick-Align

Quick-Align uses all the date and time information entered at

startup to align the telescope. However, instead of slewing to

the alignment stars for centering and alignment, the telescope

bypasses this step and simply models the sky based on the

information given. This will allow you to roughly slew to the

coordinates of bright objects like the Moon and planets and

provides the telescope with information needed to track

objects in any part of the sky (depending on accuracy of

polar alignment). Quick-Align is not meant to be used to

accurately locate small or faint deep-sky objects or to track

objects accurately for astroimaging.

To use Quick-Align, simply select Quick Align from the

alignment options and press ENTER. The telescope will

automatically use the entered date/time parameters to align

itself with the sky and display Alignment Successful.

Note: Once a Quick-Align has been done, you can use

the Re-alignment feature (see below) to improve your

telescope’s pointing accuracy.

Last Alignment

The Last Alignment method will automatically recall the last

stored index positions to continue using the alignment that

was saved when the telescope was last powered down.

This is a useful feature should your telescope accidentally

lose power or be powered down.

Re-Alignment

The mount has a re-alignment feature which allows you to

replace any of the original alignment stars with a new star or

celestial object. This can be useful in several situations:

• If you are observing over a period of a few hours, you may

notice that your original two alignment stars have drifted

towards the west considerably. (Remember that stars are

moving at a rate of 15° every hour). Aligning on a new star

that is in the eastern part of the sky will improve your pointing

accuracy, especially on objects in that part of the sky.

• If you have aligned your telescope using the Quick-Align

method, you can use Re-Align to align on actual objects

in the sky. This will improve the pointing accuracy of your

telescope without having to re-enter additional information.

• If you have used the computer-assisted polar alignment

method and have manually moved the mount, it may

be necessary to re-align the mount for improved

pointing accuracy.

To replace an existing alignment star with a new alignment star:

1. Select the desired star (or object) from the database and

slew to it.

2. Carefully center the object in the eyepiece.

3. Once centered, press the BACK button until you are at

the main menu.

4. With CGX Ready displayed, press the ALIGN key on

the hand control to select Alignment Stars from the list

of options.

5. The display will then ask you which alignment star you

want to replace. Use the UP and Down scroll keys to

select the alignment star to be replaced. It is usually best

to replace the star closest to the new object. This will

space out your alignment stars across the sky.

6. Press ALIGN to make the change.

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