Meade ETX-125 Instruction Manual page 60

3. The R.A. circle is now calibrated to read the correct
R.A. of any object at which the telescope is pointed.
The Dec. circle is already calibrated through polar
alignment.
Dec. coordinates. Then, without touching the setting
circles, move the telescope (manually, by unlocking
the vertical and horizontal locks or by slewing the
telescope using the Arrow keys) so that the R.A. and
Dec. pointers read the coordinates of the second
object.
5. If the above procedure has been followed carefully,
of view.
Note: Since the second object (i.e., the object to be
located) is in constant motion, once the R.A. circle
is calibrated (step 2, above) the telescope should be
moved rapidly to read the coordinates of the second
object. Otherwise the second object will no longer be
in the position indicated by the R.A. circle.
Using setting circles requires a developed technique.
from one bright star (the calibration star) to another
bright star of known coordinates. Practice moving the
this way the precision required for accurate object
location becomes familiar.
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