Celestron CGEM II Mode D'emploi page 22

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 and 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 R.A./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
Hint: 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 mount'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
Note: Some of the databases contain thousands of objects
and can therefore take several minutes to return the
closest objects
Precise GoTo
The mount has a Precise Goto function that can assist in
finding extremely faint objects and centering objects closer
to the center of the field of view for astroimaging Precise
GoTo automatically searches out the closest bright star to
the desired object and asks the user to carefully center the
star in the eyepiece The hand control then calculates the
small difference between its GoTo position and its centered
position Using this offset, the mount will then slew to the
desired object with enhanced accuracy
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To use Precise GoTo:
1 Press the MENU button and use the Up/Down keys
to select Precise GoTo
• Choose Database to select the object that you want
to observe from any of the database catalogs listed or;
• Choose R A /DEC to enter a set of celestial coordinates
that you wish to slew to
2 Once the desired object is selected, the hand control
will search out and display the closest bright star to
your desired object Press ENTER to slew to the bright
alignment star
3 Use the direction buttons to carefully center the alignment
star in the eyepiece
4 Press ENTER to slew to the desired object