Celestron CGEM DX Instruction Manual download pdf (Page 9)

2. Align: Instructs the telescope to use a selected star or

object as an alignment position.

3. Direction Keys: Allows complete control of the telescope

in any direction. Use the direction keys to move the

telescope to the initial alignment stars or for centering

objects in the eyepiece.

4. Catalog Keys: The hand control has keys on the hand

control to allow direct access to each of the catalogs in its

database. The hand control contains the following catalogs

in its database:

Messier

— Complete list of all Messier objects.

NGC — Complete list of all the deep-sky objects in the

Revised New General Catalog.

Caldwell — A combination of the best NGC and

IC objects.

Planets — All 8 planets in our Solar System plus

the Moon.

Stars — A compiled list of the brightest stars from the

SAO catalog.

List — For quick access, all of the best and most popular

objects in the telescope’s database have been broken

down into lists based on their type and/or

common name:

Named Stars Common name listing of the brightest

stars in the sky.

Named Objects Alphabetical listing of over 50 of the most

popular deep sky objects.

Double Stars Numeric-alphabetical listing of the most

visually stunning double, triple and

quadruple stars in the sky.

Variable Stars Select list of the brightest variable

stars with the shortest period of

changing magnitude.

Asterisms A unique list of some of the most

recognizable star patterns in the sky.

CCD Objects A custom list of many interesting galaxy

pairs, trios and clusters that are well suited

for CCD imaging.

IC Objects A complete list of all the Index Catalog

deep-sky objects.

Abell Objects A custom list of the Abell Catalog

deep-sky galaxies.

Constellation A complete list of all 88 constellations.

5. Info: Displays coordinates and useful information about

objects selected from the telescope database.

6. Tour: Activates the tour mode, which seeks out all the best

objects for the current date and time, and automatically

slews the telescope to those objects.

7. Enter: Pressing Enter allows you to select any of the

telescope’s functions and accept entered parameters.

8. Undo: Undo will take you out of the current menu and

display the previous level of the menu path. Press Undo

repeatedly to get back to a main menu or use it to erase

data entered by mistake.

9. Menu: Displays the many setup and utilities functions such

as tracking rates and user deﬁned objects and many others.

10. Scroll Keys: Used to scroll up and down within any of the

menu lists. A double-arrow will appear on the right side of

the LCD when there are sub-menus below the displayed

menu.Usingthesekeyswillscrollthroughthose

sub-menus.

11. Rate: Instantly changes the rate of speed of the motors

when the direction buttons are pressed.

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

control the telescope remotely.

Hand Control Operation

This section describes the basic hand control procedures

needed to operate all Celestron computerized telescopes.

These procedures 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;thesetupsectiondiscusseschangingparameterssuchas

trackingmodeandtrackingrate;nally,thelastsectionreviews

all of the utilities functions such as calibrating your mount, polar

alignment and backlash compensation.

aliGnMEnt proCEDurES

In order for the telescope to accurately point to objects in the

sky, it must ﬁrst be aligned with known positions (stars) in the sky.

With this information, the telescope can create a model of the

sky, which it uses to locate any object with known coordinates.

There are many ways to align your telescope with the sky

depending on what information the user is able to provide:

Figure 3-1

the hanD Control

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 37 38

Comments to this Manuals

No comments

Celestron CGEM DX Instruction Manual Page 9

Comments to this Manuals

Related products and manuals for Telescopes Celestron CGEM DX