(2) Remove both the polar axis cover. Thread the polar scope LED to the Polar Scope. Connect one
end of the polar scope power cable to the illumination LED and the other end to the DC12V output
located on RA Unit (Figure 22).
(3) Turn the mount power on.
(4) Adjust the polar scope dial to rotate one of the major ticks at the top.
(5) Use the Hand Controller (MENU => “Alignment” => “Position of Polaris/SigmaOct”) to display
the current position of Polaris on the LCD screen, as indicated in the left side of the figure below.
For example, June 22, 2014, 20:19:42 in Boston, US (long. W71°08’50” and lat. N42°30’32”, UTC -
300 min,) the Polaris Position is 0h45.8m and 40.4m.
(a) (b)
Figure 23. Polaris position shown on HC (a) and where to put on polar scope reticle (b)
(6) Look through the polar scope to find the Polaris. Use the Azimuth and Latitude Adj. Knobs to adjust
the mount in both directions and put the Polaris in the location on the Polar Scope Dial (same as
indicated on the HC LCD), as shown in In Error! Reference source not found. (b).
NOTE: If you are located in the Southern Hemisphere, Sigma Octantis will be chosen for Polar
Alignment.
BrightStar Polar Alignment
If you mount does not have an iPolar installed, or the pole star is not in sight, you may use two bright
stars with Polar Iterate Align to do the polar alignment.
(1) Level the mount and set it to the Zero Position. Align the telescope to the R.A. axis of the mount.
If a finder scope is used, adjust it to be parallel to the telescope optical axis.
(2) Use the HC (MENU => “Alignment” => “Polar Iterate Align”) to display the azimuth and altitude
position of several bright stars near the meridian. Select one that is visible at a high altitude as
Alignment Star A. Follow the HC instruction to move Alignment Star A to the center of the
eyepiece using a combination of the Latitude Adjustment Knob and the “◄” or “►” buttons.
Press ENTER to confirm when the star is centered. Next, select a bright star that is close to the
horizon as Alignment Star B. Center it using the Azimuth Adjustment Knob and the “◄” or “►”
button (the “▲” and “▼” buttons are not used here). Press ENTER to confirm the settings.
(3) The telescope will now slew back to Alignment Star A. Repeat the steps above. The iteration can
be stopped when it is determined that the alignment error has been minimized. Press the BACK
button to exit the alignment procedure.
NOTE: It is highly recommended to use an eyepiece with an illuminated crosshair for accurate centering.
NOTE: The movement of the alignment star in your eyepiece may not be perpendicular depending on its
location in the sky.
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