Celestron 4 Get RA/DEC Get Alt-Az Goto R.A/ Dec Goto Alt-Az

Ifyou want to explore the entire object database, set the maximum altitude limit to 90º and the minimum limit to –90º. This

willd isplay every object in the database lists regardless of whether it is visible in the sky from you r location.

User Defined Objects - The NexStar can store up to 50 different user defined objects in its memory.The objects can

bedayti melan d objects or an interesting celestial object that you discover that is not included

inthe regular database. There are several ways to save an object to memorydepending on

whattype of object it is:

SaveS ky Object: The NexStar 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 cen tered in the eyepiece, simply scroll to the "Save Sky

Save Sky Save Sky

Save Sky

Obj"

Obj" Obj"

Obj" commandand press ENTER. The display will ask you to entera number between 1-25

toiden tifyth eo bject. Press ENTER again to save this object to the database.

SaveLa nd Object: The NexStar can alsobe used as a spotting scope on terrestrial objects. Fixed land objects

can be stored by savingtheir 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 L and Obj

Save Land ObjSave Land Obj

Save Land Obj" command and press

ENTER. The display will ask you toenter a number between 1-25 to identify the object.

Press ENTER again to save this object to thed atabase.

EnterR.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

Enter RAEnter RA

Enter RA-

-DEC "

DEC " DEC "

DEC " command and press ENTER.

The display willthen ask you to enter first the R.A. and then the declination of the desired

object.

GoToObject: To go to any of the userdefined objects stored in the database, scroll down to either GoTo

GoTo GoTo

GoTo

Sky Obj

Sky ObjSky Obj

Sky Obj orGoto Land Obj

Goto Land ObjGoto Land Obj

Goto Land Obj andenter the number of the object you wish to select and

press ENTER. NexStar will automatically retrieve and display the coordinates before

slewingto theobject .

To replacethe contents of any of the user defined objects, simply save a new object using one of the existing identification

numbers;NexStar will replace the previous user defined objectwith the current one.

Get RA/DEC - Displays the right ascension andd eclinationfor the current position of the telescope.

Get Alt-Az - Displays the relative altitude and azimuthfor the current position of the telescope.

Goto R.A/ Dec - Allows you to input a specific R.A.and declination and slew to it.

Goto Alt-Az - Allows you to enter a specific altitudeand azimuth position and slew to it.

To store a set of coordinates (R.A./Dec) permanently into the NexStar database, save it as a User Defined Object as

describedabove.

Helpful

Hin

Observing

Tip!