iOptron 8500, 8503 User Object List, Two Star Alignment, 5.7.1. R.A. and DEC, Add a new object

If you have a very good initial setup, one star alignment should be sufficient for good GOTO accuracy. To increase the accuracy you may choose to do two star alignment.

5.6.2. Two Star Alignment

Two star alignment will increase the GOTO accuracy of the mount. It is suggested to do two star alignment after one star alignment. Select “Two Star Align” in the Align menu. Use ▲ or ▼ button to select a star and press ENTER. The mount will slew to it automatically. Use ◄ ► ▲ or ▼ key to center the object in your eyepiece. Press SPEED button to adjust the slew speed if needed. Then press ENTER to complete the alignment. After you finish the first star, the system will prompt you to choose the second star. Repeat the process to finish the second star alignment. An “Align OK!” screen will show briefly. To obtain a better alignment effect, it is suggested to choose two align stars far apart.

“Two Star Align” result will be overridden if “One Star Align” or “Sync. to Target” is performed after “Two Star Align.”

5.7. User Object List

Besides various star lists available in the hand controller, users can add, edit or delete their own defined objects. The comets and asteroids list also can be edited. Up to 128 user objects can be added or modified. For comets or asteroids, the maximum number is 64, which includes the preloaded objects.

To edit a user object, press MENU, use ▲ or ▼ button move the cursor to “User Object List” and press ENTER. A following screen will show:

R.A. and DEC.

Comets

Asteroids

Use ▲ or ▼ button to select R.A. and DEC., comets or asteroids.

5.7.1. R.A. and DEC.

Select “R.A. and DEC.” and press ENTER, a menu like following will show:

Add a new object

Edit one data

Delete one data

Delete all

Add a new object:

Use ▼ or ▲ button to move the cursor to “Add a new object” line, and press ENTER. Enter the name of your object by using ▲ or ▼ key to change the display from 1 to 9, space, - and A to Z, and ◄ or ► key to move the cursor. Press ENTER when you are done. A screen will display to ask you to enter R.A. and DEC. numbers:

Enetr R.A. DEC

RA: 00h00.0m

DEC: +00d00.0m

Use◄ or ► key to move the cursor and ▲ or ▼ key to change the numbers of your object. RA ranges from 0 hour to 24 hour and DEC from -90 degree to +90 degree. Press ENTER when it is done. A confirmation screen will show:

Save to No.	003 ?
Press “ENTER” to

Confirm

Press, “BACK” cancel

Press ENTER to confirm. The user object will be stored in the hand controller in sequence. Up to 256 objects can be added.

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