64
Press ENTER
Enter into the POSITION menu.
RA DEC
Press DOWN
Scroll down to the TELESCOP
setting.
TELESCOP
Press ENTER
Relative telescope positions are
displayed. The bottom number is the
altitude axis.
174.96
-088.85
Point the tube upward until the altitude
display reaches a maximum value.
About +090 is straight up relative to
the forks. The actual number will be
+089.???.
189.83
+089.47
The value will not actually be +90º. This is because the telescope has some mechanical characteristics which are unique
to each telescope. All telescopes have mechanical characteristics like non-perpendicularity of the two axes, non-
parallelism of the optical axis with the mechanical axis, and encoder errors. The Ultima 2000 software accounts for these
errors and makes corrections for them. Because of these corrections, the altitude reading will not read 90º. It will reach a
maximum value before 90º then start counting down again. The maximum value is the position you should use for polar
aligning. You will also notice that when you move the telescope in altitude, the azimuth display will change slightly. This
is also due to the computer compensating for the mechanical characteristics of the telescope.