Celestron StarSense AutoAlign Manual page 23

- Negative is the amount of compensation
applied when you release the button, winding
the motors back in the other direction to
resume tracking .
To adjust, press ENTER . While viewing an object in
the eyepiece, observe the responsiveness of each of
the four direction buttons . Note which directions you
see a pause in the star movement after the button
has been pressed . Working one axis at a time, adjust
the backlash settings high enough to cause imme-
diate movement without resulting in a pronounced
jump when pressing or releasing the button . Now,
enter the same values for both positive and negative
directions . If you notice a jump when releasing the
button, but setting the values lower results in a pause
when pressing the button, use the higher value for
positive, but use the lower value for negative . The
telescope will remember these values and use them
each time it is turned on until they are changed .
Custom Rate 9: Customizes the speed at which
the mount slews to a target . Press ENTER to view
the current rate and highest possible rate . The value
is displayed in degrees per second . Press ENTER
to get to the value you want to edit and enter the
desired value . Then press ENTER again to confirm .
PEC (Periodic Error Correction for Equatorial
Mounts): Periodic Error Correction, or PEC for
short, is a system built into some telescope mounts
that improves the tracking accuracy of the drive by
reducing the number of user corrections needed
to keep a guide star centered in the eyepiece .
PEC is designed to improve imaging quality by
reducing the amplitude of the worm errors . Refer to
your telescope instruction manual for details about
Periodic Error Correction .
Set Axis Position: References the alignment if the
clutches are disengaged . For instance, you might
use this feature if you needed to rebalance the
mount after having completed an alignment . To set
the mount position, simply slew to a bright star in
the named star list and select Set Axis Position .
The hand control will sync on the star by asking
you to center the star in the eyepiece and pressing
the Align button . Once synced on the star, you are
free to manually move the mount in both axes in
order to rebalance . When you are ready to slew the
telescope to your next object, manually return the
tube to the same bright star and carefully center it
in the eyepiece . Using this tool will invalidate the
PEC index .
Home Position: Some telescopes have index
marks or switch positions . Home Position will return
the telescope to this location .
Hibernate: Hibernate allows the telescope to be
completely powered down and retain its alignment
when turned back on . This not only saves power,
but is ideal for those that have their telescope
permanently mounted or leave their telescope in
one location for long periods of time . To place your
telescope in Hibernate mode:
1. Select Hibernate from the Telescope Menu .
2. Move the telescope to a desired position and
press ENTER .
3. Power off the telescope . Remember to never
move your telescope while in Hibernate mode .
Once the telescope is powered on again, the
display will read Wake Up . After pressing Enter,
you have the option of scrolling through the time/
site information to confirm the current setting .
Press ENTER to wake up the telescope .
Hint: Pressing BACK at the Wake Up screen
allows you to explore many of the features of the
hand control without waking the telescope up from
hibernate mode . To wake up the telescope after
BACK has been pressed, select Hibernate from
the Telescope menu and press ENTER . Do not
use the direction buttons to move the telescope
while in hibernate mode .
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