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Celestron LCM Series Manual

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5. Then, center the star in the eyepiece and press ALIGN.
In order to accurately center the alignment star in the
eyepiece, you may wish to decrease the slew rate of the
motors for fine centering. This is done by pressing the
RATE key (11) on the hand controller then selecting the
number that corresponds to the speed you desire. (9 =
fastest, 1 = slowest).
6. The LCM will then ask you to select and center a second
alignment star and press the ALIGN key. It is best to choose
alignment stars that are a good distance away from one
another. Stars that are at least 40º to 60º apart from each
other will give you a more accurate alignment than stars that
are close to each other.
Once the second star alignment is completed properly, the
display will read Align Successful, and you should
hear the tracking motors turn-on and begin to track.
One-Star Align
One-Star Align requires you to input all the same information
as you would for the Two-Star Align procedure. However,
instead of slewing to two alignment stars for centering and
alignment, the LCM uses only one star to model the sky based
on the information given. This will allow you to roughly slew
to the coordinates of bright objects like the Moon and planets
and gives the LCM the information needed to track objects in
altazimuth in any part of the sky. One-Star Align is not meant to
be used to accurately locate small or faint deep-sky objects or
to track objects accurately for photography.
To use One-Star Align:
1. Select One-Star Align from the alignment options.
2. Press ENTER to accept the time/site information displayed
on the display, or press UNDO to enter new information.
3. The SELECT STAR 1 message will appear in the top row of
thedisplay.UsetheUpandDownscrollkeys(10)toselect
the star you wish to use for the first alignment star.
Press ENTER.
4. The LCM then asks you to center in the eyepiece the
alignment star you selected. Use the direction arrow buttons
to slew the telescope to the alignment star and carefully
center the star in the finderscope. Press ENTER
when centered.
5. Then, center the star in the eyepiece and press ALIGN.
6. Once in position, the LCM will model the sky based on this
information and display Align Successful.
Note: Once a One-Star Alignment has been done, you
can use the Re-alignment feature (later in this section) to
improve your telescope’s pointing accuracy.
Solar System Align
Solar System Align is designed to provide excellent tracking
andGoToperformancebyusingsolarsystemobjects(Sun,
Moonandplanets)toalignthetelescopewiththesky.Solar
System Align is a great way to align your telescope for daytime
viewing as well as a quick way to align the telescope for night
time observing.
Never look directly at the sun with the naked eye
or with a telescope (unless you have the proper
solar filter). Permanent and irreversible eye
damage may result.
1. Select Solar System Align from the alignment options.
2. Press ENTER to accept the time/site information displayed
on the display, or press UNDO to enter
new information.
3. The SELECT OBJECT message will appear in the top row of
thedisplay.UsetheUpandDownscrollkeys(10)toselect
thedaytimeobject(planet,MoonorSun)youwishtoalign.
Press ENTER.
4. The LCM then asks you to center in the eyepiece the
alignment object you selected. Use the direction arrow
buttons to slew the telescope to the alignment object
and carefully center it in the finderscope. Press ENTER
when centered.
5. Then, center the object in the eyepiece and press ALIGN.
Once in position, the LCM will model the sky based on this
information and display Align Successful.
Tips for Using Solar System Align
• For safety purposes, the Sun will not be displayed in any of
the hand control’s customer object lists unless it is enabled
from the Utilities Menu. To allow the Sun to be displayed
on the hand control, do the following:
1. Press the UNDO button until the display reads
“LCM Ready”
2. Press the MENU button and use the Up and Down keys to
select the Utilities menu. Press ENTER.
3. Use the UP and Down keys to select Sun Menu and
press ENTER.
4. Press ENTER again to allow the Sun to appear on the hand
control display.
The Sun can be removed from the display by using the
same procedure as above.
To improve the telescope pointing accuracy, you can use
the Re-Align feature as described below.
Re-Alignment
The LCM has a re-alignment feature which allows you to replace
either of the original alignment stars with a new star or celestial
object. This can be useful in several situations:
• Ifyouareobservingoveraperiodofafewhours,youmay
notice that your original two alignment stars have drifted
towardsthewestconsiderably.(Rememberthatthestarsare
movingatarateof15ºeveryhour).Aligningonanewstar
that is in the eastern part of the sky will improve your pointing
accuracy, especially on objects in that part of the sky.
• IfyouhavealignedyourtelescopeusingtheOne-staralign
method, you can use re-align to align to an additional object
in the sky. This will improve the pointing accuracy of your
telescope without having to re-enter addition information.
To replace an existing alignment star with a new alignment star:
1.Selectthedesiredstar(orobject)fromthedatabaseandslew
to it.
2. Carefully center the object in the eyepiece.
3. Once centered, press the UNDO button until you are at the
main menu.
4. With LCM Ready displayed, press the ALIGN key on the
hand control.
5. The display will then ask you which alignment star you want
to replace.
… 12 …


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