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Celestron 76LCM Manual

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6. Use the UP and Down scroll keys to select the alignment star
to be replaced, and press ENTER. It is usually best to replace
the star closest to the new object. This will space out your
alignment stars across the sky. If you have used one of the
single object alignment methods then it is always best to
replace the object that is “unassigned” with an actual object.
7. Press ALIGN to make the change.
objeCT CaTaLog
Selecting an Object
Now that the telescope is properly aligned, you can choose
an object from any of the catalogs in the LCM’s database. The
hand control has a key designated for each of the catalogs in
its database. There are two ways to select objects from the
database;scrollingthroughthenamedobjectlistsandentering
object numbers:
• PressingtheLISTkeyonthehandcontrolwillaccessall
objects in the database that have common names or types.
Each list is broken down into the following categories:
Named Stars, Named Object, Double Stars, Variable Stars
and Asterisms. Selecting any one of these options will
display an alpha-numeric listing of the objects under that
list.PressingtheUpandDownkeys(10)allowsyoutoscroll
through the catalog to the desired object.
• Pressinganyofthecatalogkeys(M,CALD,NGC,orSTAR)
will display a blinking cursor below the name of the catalog
chosen. Use the numeric key pad to enter the number of any
object within these standardized catalogs. For example, to
find the Orion Nebula, press the “M” key and enter “042.”
• PressingthePLANETbuttonwillallowyoutousetheUP
and DOWN arrow keys to scroll through and select the eight
planets as well as the Moon.
When scrolling through a long list of objects, holding down
either the Up or Down key will allow you to scroll through the
catalog at a rapid speed.
When entering the number for an SAO star, you are only
required to enter the first four digits of the object’s six digit
SAO number. Once the first four digits are entered, the hand
control will automatically list all the available SAO objects
beginning with those numbers. This allows you to scroll through
only the SAO stars in the database. For example, in searching
fortheSAOstar40186(Capella),therstfourdigitswouldbe
“0401”. Entering this number will display the closest match
from the SAO stars available in the database. From there you
can scroll down the list and select the desired object.
Slewing to an Object
Once the desired object is displayed on the hand control
screen, you have two options:
• Press the INFO Key. This will give you useful information
about the selected object such as magnitude, constellation
and fascinating facts about many of the objects.
• Press the ENTER Key. This will automatically slew the
telescope to the coordinates of the object. While the
telescope is slewing to the object, the user can still access
manyofthehandcontrolfunctions(suchasdisplaying
informationabouttheobject).
If you slew to an object that is below the horizon, LCM will
notify you by displaying a message reminding you that
you have selected an object outside of your slew limits
(see Slew Limits in the Scope Setup section of the manual).
Press UNDO to go back and select a new object. Press
ENTER to ignore the message and continue the slew. The
LCM hand control will only display objects that are below
the horizon if the Filter Limits are set below 0º in altitude.
See Filter Limits in the Utility Feature section of the manual
for more information on setting the filter limits.
Caution: Never slew the telescope when someone is looking
into the eyepiece. The telescope can move at fast
slew speeds and may hit an observer in the eye.
Object information can be obtained without having to do a
star alignment. After the telescope is powered on, pressing
any of the catalog keys allows you to scroll through object lists
or enter catalog numbers and view the information about the
object as described above.
Finding Planets
TheLCMcanlocateall8ofoursolarsystemsplanets(including
Pluto)plustheSunandMoon.However,thehandcontrolwill
only display the solar system objects that are above the horizon
(orwithinitslterlimits).Tolocatetheplanets,pressthe
PLANET key on the hand control. The hand control will display
all solar system objects that are above the horizon:
• UsetheUPandDOWNkeystoselecttheplanetthatyou
wish to observe.
• PressINFOtoaccessinformationonthedisplayedplanet.
• PressENTERtoslewtothedisplayedplanet.
To allow the Sun to be displayed as an option in the database,
see Sun Menu in the Utilities section of the manual.
Tour Mode
The LCM includes a tour feature which automatically allows
the user to choose from a list of interesting objects based on
the date and time in which you are observing. The automatic
tour will display only those objects that are within your set filter
limits. To activate the Tour mode, press the TOUR key on the
hand control. The LCM will display the best objects to observe
that are currently in the sky.
• Toseeinformationanddataaboutthedisplayedobject,
press the INFO key.
• Toslewtotheobjectdisplayed,pressENTER.
• Toseethenexttourobject,presstheDownkey.
Constellation Tour
In addition to the Tour Mode, the LCM telescope has a
Constellation Tour that allows the user to take a tour of all
the best objects within a particular constellation. Selecting
Constellation from the LIST menu will display all the
constellation names that are above the user defined horizon
(lterlimits).Onceaconstellationisselected,youcanchoose
from any of the database object catalogs to produce a list of all
the available objects in that constellation.
• Toseeinformationanddataaboutthedisplayedobject,
press the INFO key.
• Toslewtotheobjectdisplayed,pressENTER.
• Toseethenexttourobject,presstheUpkey.
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