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• 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 CGEM II 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.
Object Catalog
Selecting an Object
Once the telescope is properly aligned, you can choose
an object from any of the catalogs in the NexStar+ hand
control’s database. The hand control has a key designated
for each category of objects in its database; Solar System
objects, Stars and Deep Sky objects.
• Solar System – The Solar System catalog will display
all the planets (and Moon) in our Solar System that are
currently visible in the sky. To allow the Sun to be displayed
as a selectable object in the database, see the Sun Menu
option in Scope Setup Menu.
• Stars – The Stars catalog displays custom lists of all
the brightest stars, double (Binary) stars, variable stars,
constellations and selected asterisms.
• Deep Sky – The Deep Sky catalog displays a list of all
the best Galaxies, Nebulae and Clusters, as well as the
complete Messier and select NGC objects. There is also
an alphabetical list of all deep sky objects in order by their
common name.
Use the scroll keys to scroll through the catalogs to find the
object you want to view.
When scrolling through a long list of objects, holding down
either the UP or DOWN key will allow you to scroll through
the catalog rapidly.
Slewing to an Object
Once the desired object is displayed on the hand control
screen, you have two options:
• Press the OBJECT INFO Key. This will give you useful
information about the selected object such as magnitude,
constellation and extended information about the most
popular objects.
• Use the UP/DOWN arrow buttons to scroll through the
displayed object info.
• Use the BACK button to return to the object database.
• Press the ENTER Key. This will automatically slew the
telescope to the coordinates of the object displayed on the
hand control. While the telescope is slewing to the object,
the user can still access many of the hand control functions
(such as displaying information about the object).
NOTE: The Messier, NGC and SAO catalogs require the
user to enter a numeric designation. Once you
have selected the appropriate catalog button and
selected the Messier, NGC or SAO catalog, you will
see a flashing cursor indicating you are in numeric
entry mode. Enter the catalog number for the object
you want to view. Press ENTER to command the
telescope to slew to the object or hold the OPTION
button (the Celestron logo) and press OBJECT
INFO to see information about the object you
selected.
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.
Sky Tour Button
The CGEM II mount includes a tour feature which allows
you 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
catalog filters limits. To activate the Tour feature, press the
SKY TOUR key on the hand control.
1. Press the SKY TOUR button on the hand control.
2. Use the SCROLL buttons to select Best of Tonight.
3. The CGEM II mount will automatically slew in azimuth to
its starting position which will help minimize the chance of
wrapping the power cord during the tour.
4. The hand control will display the best objects to observe
that are currently in the sky.
• To see information and data about the displayed object,
press the OBJECT INFO key. Press it once to display
the coordinates of the object. Press it again to display
the coordinates of the object. Press it again to display
the text description. Press BACK to return to the
previous screen.
