Celestron CGE925 Instruction Manual download pdf (Page 20)

Quick-Align

Quick-Align uses all the date and time information entered at startup to align the telescope. However, instead of slewing to

two alignment stars for centering and alignment, the CGE 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

gives the CGE the information needed to track objects in altazimuth in any part of the sky. Quick-Align is not meant to be

used to accurately locate small or faint deep-sky objects or to track objects accurately for photography.

To use Quick-Align, simply select Quick Align from the alignment options and press ENTER. The CGE 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 next page) to improve your

telescopes pointing accuracy.

Last Alignment

The CGE Last Alignment method will automatically recall the last saved mount switch positions, longitude and

latitude along with the current date and time given from the real time clock, 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.

Note: Just like with Quick-Align, you can use the Re-alignment feature (see next page) to improve your

telescopes pointing accuracy after using the Last Alignment method. To maintain a more accurate alignment

over a series of observing sessions, use the Hibernate feature described later in this chapter.

CGE Re-Alignment

The CGE has a re-alignment feature which allows you to replace either of the two 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 the stars are moving at a rate of

15º 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 to

two actual objects in the sky. This will improve the pointing accuracy of your telescope without

having to re-enter addition information.

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 UNDO button until you are at the main menu.

4. With CGE Ready displayed, press the ALIGN key on the hand control.

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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Celestron CGE925 Instruction Manual Page 20