Manual Celestron CGEM 925 (page 18 of 71) (English)

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the telescope will automatically slew to. One Star Align uses the same time/location information but only uses one star for

alignment.

Solar System Align will display a list of visible daytime objects (planets and the moon) available to align the

telescope.

Quick-Align will ask you to input all the same information as you would for the Auto Align procedure. 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. Finally,

Last Alignment restores your last saved star alignment and switch position.

Last Alignment also serves as a good safeguard in case the telescope should lose power.

Before any of the described alignments are performed, the telescope mount needs to be positioned so that the index marks are

aligned on both the right ascension and declination axes. (see Fig 3-2).

Once the index position has been set, the hand control

will display the last entered date and time information

stored in the hand control.

1. Press ENTER to begin the alignment process.

2. The hand control will ask the user to set the

mount to its index position. Move the telescope

mount, either manually or with the hand control,

so that the index marked in both R.A. and Dec

are aligned (see Fig 3-2). Press

Enter to

continue.

 The hand control will then display the

last entered local time, time zone and

date.

 Use the Up/Down keys (10) to view the

current parameters.

 Press ENTER to accept the current parameters.

 Press UNDO to enter current date, time and location information into the hand control. The following

information will be displayed:

Location - The hand control will display a list of cities to choose from. Choose the city from the database that is

closest to your current observing site. The city you choose will be remembered in the hand controls memory so that

it will be automatically displayed the next time an alignment is done. Alternatively, if you know the exact longitude

and latitude of your observing site, it can be entered directly into the hand control and remembered for future use as

well. To choose a location city:

 Use the Up and Down scroll keys to choose between City Database and Custom Site. City Database will

allow you to select the closest city to your observing site from a list of either international or U.S. location.

Custom Site allows you to enter the exact longitude and latitude of your observing site. Select City Database and

press ENTER.

 The hand control will allow you to choose from either U.S. or international locations. For a listing of U.S.

locations by state and then by city, press ENTER while

United States is displayed. For international

locations, use the Up or Down scroll key to select

International and press ENTER.

 Use the Up and Down Scroll buttons to choose your current state (or country if International locations was

selected) from the alphabetical listing and press ENTER.

 Use the Up and Down Scroll buttons to choose the closest city to your location from the displayed list and

press ENTER.

Time - Enter the current local time for your area. You can enter either the local time (i.e. 08:00), or you can enter

military time (i.e.

20:00 ).

 Select PM or AM. If military time was entered, the hand control will bypass this step.

 Choose between Standard time or Daylight Savings time. Use the Up and Down scroll buttons (10) to toggle

between options.

Figure 3

Declination Index Marks and Right Ascension

(RA) Index Marks

Index

Marks

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Celestron CGEM 925 Manual

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