U Tility Features - Celestron CGE1100 Supplementary Manual

Autoguide Rate –
Allows the user to set an autoguide rate as a percentage of sidereal rate. This is helpful
w hen calibrating your telescope to a CCD autoguider for long exposure photography.
Mount Settings-
Once the mount settings have been calibrated (see Utilities section below) the values are
stored and displayed in the hand control. It is not recommended that the calibration valu
e ach setting can be changed if necessary to improve the performance of the telescope.
•
Cone Value – This is the cone error value set when calibration stars are added
•
DEC Switch - This is the declination index error value set when calibrations stars are added.
•
RA Switch - This is the R.A. index error value set when Utilities / Calibrate Mount / R.A. Switch
is carried out. This procedure records the offset of the RA index switch from the Meridian.
U tility Features
Scrolling through the MENU (9) options will also provide access to several advanced utility functions within
th e CGE Series telescopes such as; Calibrate Goto, Polar Alignment, Hibernate as well as many others.
Calibrate Mount
- In order to optimize the performance and pointing accuracy of the CGE mount, the moun
has built-in calibration routines allowing it to compensate for mechanical variat
equatorial mount. Each calibration is completely automatic and in most cases
only needs to be performed once. It is highly recommend
m inutes to go through the mount calibration procedures.
•
R.A. Switch Calibration - This procedure records the offset of
RA index switch from the meridian. To perform an RA Switch
Calibration, the mount must be polar aligned and a t
must have been performed with calibration stars.
•
Calibrating the RA switch will improve the pointing accuracy to
the initial alignment stars when the mount has been polar aligned
To successfully calibrate the R.A. switch of your telescope, you should
fo llow a complete alignment process which includes the following:
- Complete a Two-Star alignment adding three calibration stars at
the end. (See Alignment Procedures earlier in this section).
- Use the Polar Align Utility feature to polar align your telescope as
described later in this section.
- Once polar aligned you must re-align your telescope using the
Two-Star alignment method and adding calibration star as an
option.
- Finally, use the Utility/Calibrate Mount/ R.A. Switch feature to
properly calibrate the R.A. axis of the mount.
•
GoTo Calibration – Goto Calibration is a useful tool when attaching
heavy visual or photographic accessories to the telescope. Goto
Calibration calculates the amount of distance and time it takes for the
mount to complete its final slow goto when slewing to an object.
Changing the balance of the telescope can prolong the time it takes to
complete the final slew. Goto Calibration takes into account any slight
imbalances and changes the final goto distance to compensate.
Home Position –
The telescope's "home" position is a user-definable position that is used to store the
telescope when not in use. The home position is useful when storing the telescope in a permanent observatory
facility. By default the Home position is the same as the switch position used when aligning the mount. To set
the Home position for your mount simply use the arrow buttons on the hand control to move the telescope
m ount to the desired position. Select the Set option and press Enter.
ion
ed that you take a few
the
wo star alignment
es be changed, however
inherent in every German
UTILITIES
CALIBRATE MOUNT
R.A. SWITCH
GOTO
HOME POSTION
GOTO
SET
POLAR ALIGN
DISPLAY ALIGN
ALIGN MOUNT
LIGHT CONTROL
FACTORY SETTING
PRESS UNDO
PRESS "0"
VERSION
GET AXIS POSITION
GOTO AXIS POSITION
HIBERNATE
SUN MENU
SCROLLING MENU
SET MOUNT POSITION
TURN ON/OFF GPS
TURN ON/OFF RTC
MOVE TO SWITCHES
RA TO SWITCH
DEC TO SWITCH
PEC
PLAYBACK
RECORD
t