Celestron 11007, Instruction Manual

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Tracking Rate – In addition to being able to move the telescope with the 
hand control buttons, the CPC will continually track a celestial object as it 
moves across the night sky .  The tracking rate can be changed depending 
on what type of object is being observed:

Sidereal 

This rate compensates for the rotation of 

the Earth by moving the telescope at the same  

rate as the rotation of the Earth, but in the  

opposite direction .  When the telescope is polar  

aligned, this can be accomplished by moving  

the telescope in right ascension only .  When  

mounted in Alt-Az mode, the telescope must  

make corrections in both R .A . and declination . 

Lunar 

Used for tracking the Moon when observing the  

lunar landscape .

Solar 

Used for tracking the Sun when solar observing .

View Time-Site – Displays the current time and longitude/latitude 
downloaded from the GPS receiver. It will also display other relevant 
time-site information like time zone, daylight saving and local sidereal 
time . Local sidereal time (LST) is useful for knowing the right ascension 
of celestial objects that are located on the meridian at that time. View 
Time-Site will always display the last saved time and location entered 
while it is linking with the GPS. Once current information has been 
received, it will update the displayed information. If GPS is switched off, 
the hand control will only display the last saved time and location .
  User Defined Objects – The CPC can store up to 400 different user 

defined objects in its memory. The objects can be daytime land 
objects or an interesting celestial object that you discover that is not 
included in the regular database . There are several ways to save an 
object to memory depending on what type of object it is:

  Save Sky Object – The CPC stores celestial objects to its database 

by saving its right ascension and declination in the sky . This way the 
same object can be found each time the telescope is aligned. Once a 
desired object is centered in the eyepiece, simply scroll to the “Save 
Sky Obj” command and press ENTER . The display will ask you to 
enter a number between 1-200 to identify the object. Press ENTER 
again to save this object to the database. 

  Save Land Object – The CPC can also be used as a spotting scope on 

terrestrial objects. Fixed land objects can be stored by saving their 
altitude and azimuth relative to the location of the telescope at the 
time of observing. Since these objects are relative to the location of 
the telescope, they are only valid for that exact location . To save land 
objects, once again center the desired object in the eyepiece. Scroll 
down to the “Save Land Obj” command and press ENTER . The 
display will ask you to enter a number between 1-200 to identify the 
object. Press ENTER again to save this object to the database. 

  Save Database (Db) Object – This feature allows you to create your 

own custom tour of database objects by allowing you to record the 
current position of the telescope and save the name of the object by 
selecting it from any one of the database catalogs. These objects then 
can be accessed by selecting GoTo Sky Object.

  Enter R.A. - Dec – You can also store a  specific set of coordinates for 

an object just by entering the R.A. and declination for that object. 
Scroll to the “Enter RA-DEC” command and press ENTER . The display 
will then ask you to enter first the R.A. and then the declination of the 
desired object.

  GoTo Object – To go to any of the user defined objects stored in the 

database, scroll down to either GoTo Sky Obj or GoTo Land Obj and 
enter the number of the object you wish to select and press ENTER. 
The CPC will automatically retrieve and display the coordinates before 
slewing to the object.

To replace the contents of any of the user defined objects, simply save a 
new object using one of the existing identification numbers. The CPC will 
replace the previous user defined object with the current one. 
Get RA/DEC – Displays the right ascension and declination for the 
current position of the telescope .
GoTo R.A/ Dec – Allows you to input a specific R.A. and declination and 
slew to it .

Identify

Identify Mode will search any of the CPC database catalogs or lists and 
display the name and offset distances to the nearest matching objects. 
This feature can serve two purposes. First, it can be used to identify 
an unknown object in the field of view of your eyepiece. Additionally, 
Identify Mode can be used to find other celestial objects that are close to 
the objects you are currently observing. For example, if your telescope is 
pointed at the brightest star in the constellation Lyra, choosing Identify 
and then searching the Named Star catalog will no doubt return the star 
Vega as the star you are observing . However, by selecting Identify and 
searching by the Named Object or Messier catalogs, the hand control 
will let you know that the Ring Nebula (M57) is approximately 6° from 
your current position . Searching the Double Star catalog will reveal that 
Epsilon Lyrae is only 1° away from  Vega. To use the Identify feature:

•  Press the MENU button and select the Identify option.
•  Use the UP/DOWN scroll keys to select the catalog that you would 

like to search .

•  Press ENTER to begin the search.
Note: Some of the databases contain thousands of objects, and 
can therefore take a minute or two to return the closest object.

Precise GoTo

The CPC has a Precise GoTo function that can assist in finding extremely 
faint objects and centering objects closer to the center of the field of 
view for astrophotography and CCD imaging . Precise GoTo automatically 
searches out the closest bright star to the desired object and asks 
the user to carefully center it in the eyepiece . The hand control then 
calculates the small difference between its GoTo position and its 
centered position.  Using this offset, the telescope will then slew to the 
desired object with enhanced accuracy.  To use Precise GoTo:
1 .  Press the MENU button and use the UP/DOWN keys to select  

Precise GoTo . 

2 . Choose Database to select the object that you want to observe from 

any of the database catalogs listed   

3 . Choose RA/DEC to enter a set of celestial coordinates that you wish 

to slew to .

4.  Once the desired object is selected, the hand control will search out 

and display the closest bright star to your desired object. Press ENTER 
to slew to the bright alignment star .

5 .  Use the direction buttons to carefully center the alignment star  

in the eyepiece . 

Press ENTER to slew to the desired object.
To store a set of coordinates (R .A ./Dec) permanently into the CPC 
database, save it as a User Defined Object as described above .