iOptron 8603 and 8604 Telescope User Manual


 
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6.2.4. Asteroids
I his catalog contains up to 4,096 asteroids. This database is customer upgradeable.
6.2.5. Stars
Named Stars: It consists of 191 stars with their common names. They are listed
alphabetically. A list is attached in Appendix C.
Double Stars: It consists of 40 double stars. A list is attached in Appendix C.
SAO Bright Stars: It consists of 26,584 SAO catalog objects.
GCVS Variable Stars: consists of 38,624 GCVS variable stars. They are listed
numerically.
6.2.6. Constellations
This catalog consists of 88 modern constellations with their names. They are listed
alphabetically. A list is attached in Appendix C.
6.2.7. User Objects
It can consist up to 256 user predefined objects. These objects need to be entered
before they can be selected for slewing.
6.2.8. Enter R.A. DEC
Here you can go to a target by entering its R.A. and DEC numbers.
6.3. Sync to Target
This operation will match the telescope's current coordinates to Target Right Ascension
and Declination. After slew to an object, press MENU—then scroll to “Sync to Target” and press
ENTER. Follow the screen to do the sync. Using this function will re-calibrate the computer to
the selected object. Multiple syncs can be performed if needed.
“Sync to Target” will only work after “Select and slew” is performed. Otherwise, the
system may perform incorrectly. You can change the slewing speed to make the centering
procedure easier. Simply press a number (1 through 9) to change the speed. The default slew
speed is 64X.
“Sync to Target” has the similar performance that “One Star Align” has and will greatly
improve the GOTO accuracy locally. It is very useful for finding a faint object near a bright star.
6.4. Electric Focuser
N/A