15
Instruction Manual
After completion of the “One Star” alignment procedure, the motor drive traverses
for the tracking. The telescope is now aligned for an observation night. All objects
should retain their position in the eyepiece, even though the earth continues to
rotate under the stars.
Two and Three Star Alignment
The implementation is identical, however, repeat steps 4 and 5 twice or three
times for more alignment stars.
Synchronisation
With this, the precision of the positioning can be increased. The telescope
equilibrates the position of the object with the database after the synchronization.
Celestial objects in the surrounding area are then approached more closely.
1. In the “Alignment” main menu, select the “Synchronisation” menu item and
press enter.
2. It now displays “Targers Sync. open”. Press ENTER.
3. “Synchronizing” will flash in the display. Press ENTER.
4. Select, in the “Navigation” main menu, e.g. the menu item, “Messier Objects”
and select a visible object by pressing the ENTER button.
5. Press the ENTER button again and the telescope approaches the selected
object. It could be that you still need to bring Saturn into the centre field
of view of the eyepiece with the direction buttons. After this is done, press
ENTER.
6. In the “Alignment” main menu, select the “Synchronisation” menu item once
again and press Enter.
7. Select “Targers Sync. ensure” (confirm object for synchronisation) and press
ENTER. The synchronization is now complete and the position values will be
recalculated on the LCD and updated accordingly.
RA + DEC Backlash compensation
For improved accuracy, you can train the gear backlash or “backlash correction
of the axis”. This must be done separately for both axes and is not usually
necessary. Press the central button (2) to enter the menu and select “Align”.
You then select accordingly “RA backlash compensation.” or “DEC backlash
compensation.”.
1. Choose the “RA backlash compensation.” menu item and press ENTER.
2. Insert a reticle eyepiece into the eyepiece extension of the telescope.
3. Approach a high-contrast object (e.g. a spire) with the telescope and centre
it as accurately as possible in the reticle. Press ENTER.
4. Briefly press the right direction button and wait until a tone sounds.
5. Press and hold the left direction button until such time as the previously
set object is situated precisely at the home position on the reticle. Press
ENTER.
6. The measured value for the reversal backlash of the RA motor is now
displayed in arc seconds.
The “DEC backlash compensation” functions in the same way, except that the
“up and down” buttons need to be used here.
NOTE
As soon as the telescope is
aligned once, move it just
by using the Goto control or
the direction buttons. Do not
open the telescopic clamps
(1 and 17, Fig. 1a) from this
point and also avoid adjusting
the base of the telescope
manually. Otherwise, the
alignment of the telescope
could be lost.
NOTE
The hand box calculates the
best alignment star based on
the location, time and date.
The stars can change from
night to night and from hour
to hour. You, as an observer,
need to only centre the stars
in the visual field when you
are prompted.
NOTE
To further increase the
positioning accuracy of the
telescope control, adjust the
telescope mount using the
pole finder scope as precisely
as possible to the celesti-
al pole, before alignment
occurs. You will find more
information as you read the
relevant sections.
NOTE
In respect to point 5, always
only approach the object in
one direction. It is not advisa-
ble to take corrective action
in the opposite direction, in
order to approach the object
once again. If necessary, the
procedure must be stopped
and restarted.
