Celestron 8i User Manual
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Pressing the LIST key on the hand control will access all objects in the database that have common names or
types. Each list is broken down into the following categories: Named Stars, Named Object, Double Stars,
Variable Stars, Asterisms and CCD Objects. Selecting any one of these catalogs will display a numeric-
alphabetical listing of the objects under that list. Pressing the Up and Down keys (10) allows you to scroll
through the catalog to the desired object.
types. Each list is broken down into the following categories: Named Stars, Named Object, Double Stars,
Variable Stars, Asterisms and CCD Objects. Selecting any one of these catalogs will display a numeric-
alphabetical listing of the objects under that list. Pressing the Up and Down keys (10) allows you to scroll
through the catalog to the desired object.
When scrolling through a long list of objects, holding down either the Up or Down key will allow you to scroll
through the catalog at a rapid speed.
through the catalog at a rapid speed.
Pressing any of the other catalog keys (M, CALD, NGC, or STAR) will display a blinking cursor below the name
of the catalog chosen. Use the numeric key pad to enter the number of any object within these standardized
catalogs. For example, to find the Orion Nebula, press the "M" key and enter "042".
of the catalog chosen. Use the numeric key pad to enter the number of any object within these standardized
catalogs. For example, to find the Orion Nebula, press the "M" key and enter "042".
Slewing to an Object
Once the desired object is displayed on the hand control screen, choose from the following options:
•
Press the INFO Key. This will give you useful information about the selected object such as R.A. and
declination, magnitude size and text information for many of the most popular objects.
declination, magnitude size and text information for many of the most popular objects.
•
Press the ENTER Key. This will automatically slew the telescope to the coordinates of the object.
Caution: Never slew the telescope when someone is looking into the eyepiece. The telescope can move at fast slew
speeds and may hit an observer in the eye.
If you slew to an object that is below the horizon, NexStar will notify you by displaying a message reminding you
that you have selected an object outside of your slew limits (see Slew Limits in the Utility Features section of the
manual). Press UNDO to go back and select a new object. Press ENTER to ignore the message and continue
the slew.
that you have selected an object outside of your slew limits (see Slew Limits in the Utility Features section of the
manual). Press UNDO to go back and select a new object. Press ENTER to ignore the message and continue
the slew.
Object information can be obtained without having to do a star alignment. After the telescope is powered on,
pressing any of the catalog keys allows you to scroll through object lists or enter catalog numbers and view the
information about the object as described above.
pressing any of the catalog keys allows you to scroll through object lists or enter catalog numbers and view the
information about the object as described above.
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The NexStar can located all 8 of our solar systems planets plus the Moon and Sun. However, the hand control
will only display the solar system objects that are above the horizon (or within its filter limits). To locate the
planets, press the PLANET key on the hand control. The hand control will display all solar system objects that
are above the horizon:
will only display the solar system objects that are above the horizon (or within its filter limits). To locate the
planets, press the PLANET key on the hand control. The hand control will display all solar system objects that
are above the horizon:
• Use
the
Up and Down keys to select the planet that you wish to observe.
• Press
INFO to access information on the displayed planet.
• Press
ENTER to slew to the displayed planet.
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The NexStar includes a tour feature which automatically allows the user to choose from a list of interesting
objects based on the date and time in which you are observing. The automatic tour will display only those objects
that are within your set filter limits (see Filter Limits in the Setup Procedures section of the manual). To activate
the Tour mode, press the TOUR key (6) on the hand control. The NexStar will display the best objects to observe
that are currently in the sky.
objects based on the date and time in which you are observing. The automatic tour will display only those objects
that are within your set filter limits (see Filter Limits in the Setup Procedures section of the manual). To activate
the Tour mode, press the TOUR key (6) on the hand control. The NexStar will display the best objects to observe
that are currently in the sky.
• To see information and data about the displayed object, press the INFO key.
• To slew to the object displayed, press ENTER.
• To see the next tour object, press the Up key.
Helpful
Hint