Celestron CGE800 Telescope User Manual


 
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sidereal time. Local sidereal time (LST) is useful for knowing the right ascension of celestial objects that are
located on the meridian at that time. View Time-Site will always display the last saved time and location entered
while it is linking with the GPS. Once current information has been received, it will update the displayed
information. If GPS is switched off, the hand control will only display the last saved time and location.
User Defined Objects - The CGE can store up to 400 different user defined objects in its memory. The
objects can be daytime land objects or an interesting celestial object that you
discover that is not included in the regular database. There are several ways to save
an object to memory depending on what type of object it is:
GoTo Object: To go to any of the user defined objects stored in the database, scroll down to either
GoTo Sky Obj or Goto Land Obj and enter the number of the object you
wish to select and press ENTER. CGE will automatically retrieve and display the
coordinates before slewing to the object.
Save Sky Object: The CGE stores celestial objects to its database by saving its right ascension and
declination in the sky. This way the same object can be found each time the
telescope is aligned. Once a desired object is centered in the eyepiece, simply scroll
to the "Save Sky Obj" command and press ENTER. The display will ask you to
enter a number between 1-200 to identify the object. Press ENTER again to save
this object to the database.
Enter R.A. - Dec: You can also store a specific set of coordinates for an object just by entering the
R.A. and declination for that object. Scroll to the "Enter RA-DEC " command
and press ENTER. The display will then ask you to enter first the R.A. and then the
declination of the desired object.
Save Land Object: The CGE can also be used as a spotting scope on terrestrial objects. Fixed land
objects can be stored by saving their altitude and azimuth relative to the location of
the telescope at the time of observing. Since these objects are relative to the
location of the telescope, they are only valid for that exact location. To save land
objects, once again center the desired object in the eyepiece. Scroll down to the
"Save Land Obj" command and press ENTER. The display will ask you to
enter a number between 1-200 to identify the object. Press ENTER again to save
this object to the database.
To replace the contents of any of the user defined objects, simply save a new object using one of the existing
identification numbers; CGE will replace the previous user defined object with the current one.
Get RA/DEC - Displays the right ascension and declination for the current position of the telescope.
Goto R.A/ Dec - Allows you to input a specific R.A. and declination and slew to it.
To store a set of coordinates (R.A./Dec) permanently into the CGE database, save it as a User Defined Object
as described above.
Identify
Identify Mode will search any of the CGE database catalogs or lists and display the name and offset distances to
the nearest matching objects. This feature can serve two purposes. First, it can be used to identify an unknown
object in the field of view of your eyepiece. Additionally, Identify Mode can be used to find other celestial
objects that are close to the objects you are currently observing. For example, if your telescope is pointed at the
brightest star in the constellation Lyra, choosing Identify and then searching the Named Star catalog will no
doubt return the star Vega as the star you are observing. However, by selecting Identify and searching by the
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