Celestron C100ED-R - Manual (Page 23)

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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. The telescope will automatically retrieve and display the
coordinates before slewing to the object.
Save Sky Object:
Your telescope 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 telescope 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; the telescope 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 database, save it as a User Defined Object as described
above.
Identify
Identify Mode will search any of the telescope's 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 Named Object or
Messier catalogs, the hand control will let you know that the Ring Nebula (M57) is approximately 6° from your
current position. Searching the Double Star catalog will reveal that Epsilon Lyrae is only 1° away from Vega. To
use the Identify feature:
• Press the Menu button and select the Identify option.
• Use the Up/Down scroll keys to select the catalog that you would like to search.
• Press ENTER to begin the search.
Helpful
Hint