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PART III : ALIGNMENT
3.1 Choosing an Alignment Method
At the beginning of the alignment process, users are asked to choose an alignment method.
The available alignment methods differ between the mount types, as listed below:
•
For an equatorial mount: 1-Start Alignment
Align.)
or 3-Star Alignment
(3-Star Align.)
•
For an alt-azimuth mount: Brightest Star Alignment
(2-Star Align.)
Note: For a detailed description and comparison of each alignment method, please
Section
3.7.
Operation:
Alignment:
•
The LCD screen displays "
•
Use the two scrolling keys to select an alignment method in the second line of the LCD
screen.
•
Press
ENTER
to confirm selection and proceed to the next step
ESC
•
Press
to skip the alignment process and enter standby mode.
3.2 Aligning to Alignment Stars
In this step, user will be asked to choose one or multiple alignment stars from a list provided
by the SynScan hand control, and then control the mount to center the star(s) in the FOV of
the telescope's eyepiece. The SynScan hand control will then use the data collected in this
process to transform between the mount coordinates and the sky coordinates.
The operating steps of aligning to alignment stars may differ depending on the type of mount
used, as well as the chosen alignment method. Users should read the following section which
meets your mount and alignment method:
•
Section 3.3: Alignment Method for Equatorial mounts.
•
Section 3.4: Alt-azimuth mounts using the Brightest Star Alignment method.
•
Section 3.5: Alt-azimuth mounts using the 2-Star Alignment method.
3.3 Alignment Method for Equatorial Mounts
Aligning the 1
Star:
st
The LCD screen displays "
Choose 1st Star
1.
through a list of star names and Press
alignment star. The mount will then automatically slew and point the telescope towards the
1
alignment star in the sky.
st
2.
After the mount stops, the hand control will display "
Now the telescope should point rather closely to the 1
FOV of the finder scope), and the mount's tracking function is also turned on by the hand
control to prevent the objects drift in the FOV of the telescope.
(1-Star Align.)
, 2-Star Alignment
(Brightest Star)
or 2-Star Alignment
" in the first line.
(Section
3.2).
" in the first line. Use the scrolling keys to browse
ENTER
key to pick the one on the screen as the 1
Use arrow buttons Ctr. to eyepiece..
alignment star (generally, in the
st
10
Now users can use the direction keys to move the telescope to align with the 1
3.
star. That is, center the 1
it in the FOV of the telescope's eyepiece; press
and proceed to the next step. Generally, users can use Rate 5 or 6 to center the star in the
(2-Star
finder scope and use Rate 2 or 3 to center the star in the telescope's eyepiece.
If the user has chosen 1-Star Alignment method before, the SynScan hand control will now
4.
Alignment Successful
display "
If the user has chosen 2-Star Alignment or 3-Star Alignment before, the SynScan hand
5.
refer to
control will then proceed to the next step.
Aligning the 2
Again, the SynScan hand control asks the user to choose and align a 2
1.
The operation is the same as that of aligning the 1
If the user has chosen 2-Star Alignment before, the SynScan hand control will display
2.
Alignment Successful
"
3.
Two seconds later, the LCD screen will display the polar-alignment offset of the mount. The
"
Mel
" value is the offset in elevation, and the "
4.
If the user has chosen 3-Star Alignment before, the SynScan hand control will then pro-
ceed to the next step.
Selecting and Aligning the 3
The operation is the same as that of Aligning the 2
Cancellation During Aligning Process:
While the mount is slewing during the alignment, users may press the ESC key to stop the
1.
mount. The hand control screen will display "
Press any key and the SynScan hand control will ask the user to select another alignment
2.
star.
3.
Press the
key
1
to exit the alignment process; press key
3.4 Alt-Azimuth Mounts using Brightest Star Alignment Method
st
Aligning the 1
1.
Find the brightest stars in the current sky with naked eyes, and estimate its horizontal re-
".
gion (orientation).
The hand control displays "
2.
gions shown in
ENTER
to confirm selection and proceed to the next step.
alignment star in the FOV of the finder scope, and then center
st
ENTER
ENTER
". Press
to complete the alignment process.
Star:
nd
st
" after confirmation of centering the 2
Maz
" value is the offset in azimuth.
Star:
rd
Star.
nd
MOUNT STOPPED!!. Press any key...
ESC
key again, the LCD screen will display "
2
to go back to choose an alignment star.
Star:
st
Select Region
". Use the scroll keys to pick one of the eight re-
3.4a, which matches the horizontal region of the brightest star. Press
Fig
11
PART III : ALIGNMENT
alignment
st
key to confirm centering of the star
alignment star.
nd
alignment star.
nd
alignment star.
"
Exit Alignment? 1) YES 2) NO
". Press
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