Celestron CGEM 1100 User Manual
Page 23
23
Direction Buttons
The hand control has four direction buttons (3) in the center of the hand control which control the telescope's motion in
altitude (up and down) and azimuth (left and right). The telescope can be controlled at nine different speed rates.
Rate Button
Pressing the RATE key (11) allows you to instantly change the speed rate of the motors from high speed slew rate to precise
guiding rate or anywhere in between. Each rate corresponds to a number on the hand controller key pad. The number 9 is the
fastest rate (3º per second, depending on power source) and is used for slewing between objects and locating alignment stars.
The number 1 on the hand control is the slowest rate (.5x sidereal) and can be used for accurate centering of objects in the
eyepiece and photographic guiding. To change the speed rate of the motors:
Press the RATE key on the hand control. The LCD will display the current speed rate.
Press the number on the hand control that corresponds to the desired speed. The number will appear in
the upper-right corner of the LCD display to indicate that the rate has been changed.
The hand control has a "double button" feature that allows you to instantly speed up the motors without having to choose a
speed rate. To use this feature, simply press the arrow button that corresponds to the direction that you want to move the
telescope. While holding that button down, press the opposite directional button. This will increase the slew rate to the
maximum slew rate.
The direction that a star moves in the eyepiece when a direction is pressed will change depending on which side of the
Meridian the telescope tube is positioned. In order to change the direction of the arrow buttons, see Scope Setup Features later
in this section.
1 = .5x
6 = 64x
2 = 1x (sidereal)
7 = 1º / sec
3 = 4x
8 = 2º / sec
4 = 8x
9 = 5º / sec
5 = 16x
S
S
e
e
t
t
u
u
p
p
P
P
r
r
o
o
c
c
e
e
d
d
u
u
r
r
e
e
s
s
The Hand Control contains many user defined setup functions designed to give the user control over the telescope's many
advanced features. All of the setup and utility features can be accessed by pressing the MENU key and scrolling through the
options:
Tracking Mode
This allows you to change the way the telescope tracks depending on the type of mount being used
to support the telescope. The telescope has three different tracking modes:
EQ North
Used to track the sky when the telescope is polar aligned in the
Northern Hemisphere.
EQ South
Used to track the sky when the telescope is polar aligned in the
Southern Hemisphere.
Off
When using the telescope for terrestrial (land) observation, the
tracking can be turned off so that the telescope never moves.
Nine available slew speeds