Precise goto, Scope setup features, Get ra/dec – Celestron CGEM 1100 User Manual
Page 25: Goto r.a/ dec, Identify, Setup time-site
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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.
Note: Some of the databases contain thousands of objects, and can therefore take several minutes to return the closest objects.
Precise GoTo
The telescope 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 astrophotography and CCD imaging. Precise Goto
automatically searches out the closest bright star to the desired object
and asks the user to carefully center it in the eyepiece. The hand
control then calculates the small difference between its goto position
and its centered position. Using this offset, the telescope will then slew
to the desired object with enhanced accuracy. 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 RA/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.
Scope Setup Features
Setup Time-Site
-
Allows the user to customize the telescope's
display by changing time and location parameters (such as time zone
and daylight savings).
Helpful
Hint
SCOPE SETUP
SET UP TIME-SITE
ANTI-BACKLASH
FILTER LIMITS
DIRECTION BUTTONS
GOTO APPROACH
AUTOGUIDE RATES
OTA ORIENTATION
MERIDIAN
MOUNT SETTINGS
RA POSITIVE
RA NEGATIVE
DEC POSITIVE
DEC NEGATIVE
RA BUTTONS
DEC BUTTONS
RA LIMITS
RA APPROACH
DEC APPROACH
RA RATE
DEC RATE
NORMAL
EAST
WEST
FAVOR CURRENT
FAVOR WEST
FAVOR EAST
DISABLED
CONE VALUE
DEC INDEX
RA INDEX