iOptron 8504 Telescope User Manual


 
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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:
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:
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:
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:
Press ENTER to confirm. The user object
will be stored in the hand controller in
sequence. Up to 256 objects can be added.
Save to No. 003 ?
Press “ENTER” to
Confirm
Press, “BACK” cancel
Enetr R.A. DEC
RA: 00h00.0m
DEC: +00d00.0m
Add a new object
Edit one data
Delete one data
Delete all
R.A. and DEC.
Comets
Asteroids