Custom Objects; Custom R.a. Dec; Sync To Target; Alignment - iOptron AZ Mount Pro Instruction Manual

5.1.7. Custom Objects

This allows the storage of up to 60 user-defined objects, including comets.

5.1.8. Custom R.A. DEC

Here you can go to a target by entering its R.A. and DEC coordinates.

5.2. Sync to Target

This operation will match the telescope's current coordinates to Target Right Ascension and
Declination. After slewing to an object, press MENU => "Sync to Target" => ENTER. Follow the screen
to perform the sync. Using this function will re-calibrate the computer to the selected object. Multiple
syncs can be performed if needed. This operation is most useful to find a faint star or nebula near a
bright star.
You can change the slew rate to make the centering procedure easier. Simply press a number
(1 through 9) key to change the speed. The default slew rate is 64x.
"Sync to Target" will improve the local GOTO accuracy near by the synced star, which is useful
for finding a faint object nearby.

5.3. Alignment

This function is used to align the telescope mount. Please keep in mind that LEVELING is the
most critical part of goto and tracking accuracy.

5.3.1. One Star Alignment

Press MENU => "Alignment" => "One Star Align". A list of alignment stars that are above the
horizon is computed based on your local time and location. With the mount in the Zero Position, use
the▲ and ▼ buttons to select a star and press ENTER. Center the target in your eyepiece using the
arrow keys. Press ENTER when finished. If your mount is well leveled, one star alignment should be
sufficient for good GoTo accuracy. To increase the pointing accuracy over the sky, you may choose to
do a two star and three star alignment.

5.3.2. Two Star Alignment

Two Star Align can improve the mount's average goto pointing accuracy. Two star alignment
requires a wider view of the sky, since the two align stars need to be far apart. Press MENU =>
"Alignment" => "Two Star Polar Align." A list of alignment stars that are above the horizon is
computed based on your local time and location. With the mount at the Zero Position, use the ▲ and ▼
buttons to select the first alignment star and press ENTER. Center the target in your eyepiece using the
arrow keys after the mount slews to it. Press ENTER when finished. The hand controller will prompt you
to choose a second star. After selecting and centering the second star, the two-star alignment is
finished.

5.3.3. Three Star Alignment

The three-star alignment will further improve the average pointing accuracy based on 3-point
sky model.
Press MENU => "Alignment" => "Three Star Align." A list of alignment stars that are above the
horizon is computed based on your local time and location. With the mount at the Zero Position, use
the▲ and ▼ buttons to select the first alignment star and press ENTER. Center the target in your
eyepiece using the arrow keys. Press ENTER when finished. The hand controller will prompt you to
choose a second star. Select third star after the mount aligned to the second star.
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