Celestron 4 - page 13

Caldwell– A combination of the best NGC and IC objects.

Planets- All8 planetsin our Solar System plus the Moon.

Stars– A compiled list of thebrightest stars from the SAO catalog.

List – For quick access, all of the best and most popular objects in the NexStar database have been broken

downinto lists based on their type and/or commonname:

NamedStars Commonname listing of thebrightest stars in the sky.

NamedObjects Alphabetical listing of over 50 of the most popular deep

skyobjects.

DoubleStars Numeric-alphabeticallisting of the most visually stunning

double, triple and quadruple stars in the sky.

VariableStars Select list of the brightest variable stars with the shortest

periodof changing magnitude.

Asterisms A unique list of some of the most recognizable star

patternsin the sky.

5. Info:Displayscoordinates and useful information about objectsselected from the NexStar database.

6. Tour: Activatesthe tour mode, which seeks out all the best objects for a given month and automaticallyslews the

NexStart o those objects.

7. Enter: Pressing Enter allows you to select any of the NexStar functions, accept entered parameters and slew the

telescopeto displayed objects.

8. Undo: Undo will take youout of the current menu and display the previous level of the menu path. Press Undo

repeatedlyto get b ackto a main menu o ruse it to erase data entered by mistake.

9. Menu: Displays the many setup and utilitiesfunctions such as tracking rate and user defined objects and many

others.

10. ScrollK eys: Used toscroll up and down within any of the menu lists. Adouble arrow symbol on the right side of

theLCD indicates that the scroll keys can be used to view additionalinformation.

11. Rate: Instantlychanges the rate of speed of the motors when the direction buttonsare pressed.

12. RS-232 Jack:Allows you to interface with a computer and control theNexStar remotely.

Thissection describes the basic hand control procedures needed to operate the NexStar. Theseprocedures are grouped into

three categories:Alignment, Setup and Utilities. The alignment section deals with the initial telescope alignment as well as

finding objects in the sky; thesetup section discusses changing parameters such as trackin g mode and tracking rate; finally,

thelast section reviews all of the utility functions such as adjusting the telescopes slewlimits and backlash compensation.

Alignment Procedure

Inorder for the NexStar to accu rately poin t too bjects in the sky, it must first be aligned with t wokn own positions (stars) in

the sky. Withthis informatio n, the telescope can create a model of the sky, which it uses to locate any object with known

coordinates.

Auto-Align

Auto-Alignis the easiest way to get your NexStaraligned and ready to observe. Even if you do not knowa single star in the

sky,the NexStar will align itself by guiding the user through the alignmentprocedure by asking for basic information like

thedate, time and location. The NexStar will then automatically choose twostars for alignment and roughly center the stars

inthe field of view of the Star Pointer. Before the telescope is ready to be aligned, it should be setup in an outside location

withall accessori es(e yepiece and Star Pointer) attached and lens cover removed as described in the Assembly section of the

manual.

1. Onceth e NexStar is powered on the display will read NexStar Ready.Press ENTER tobegin alignment.

Thefirst time that the NexStar is used, it will request information to help identifythe model of telescope. Oncepowered on,

the hand control willdisplay the message Sel ect Model

Select ModelSelect Model

Select Model. Usethe Up and Down menu keys (10) to scroll through the

differentNexStar models. PressENTER when your NexStar model is displayed on thehand control. This informationwill

be retained for future use and will not be displayed again. Iffor so merea son theincorrect model was selected or you wish