Orion ATLAS EQ-G User Manual download pdf (Page 10)

Changing the Guiding Speed

The dual-axis hand controller provides 4 different guiding

speed settings: 2x, 1.75x, 1.5x (default), and 1.25x sidereal

rate. If you change the guiding speed from the default setting

of 1.5x sidereal rate, the controller will guide at the chosen

speed until another guiding speed is selected.

In order to set the guiding speed of your Atlas EQ-G, use the

button following button combinations:

 •2xsiderealrate: HoldtheFast button, then press

the Up directional button.

 •1.75xsiderealrate: HoldtheFast button, then press

the Left directional button.

 •1.5xsiderealrate: HoldtheFast button, then press

the Right directional button.

 •1.25xsiderealrate: HoldtheFast button, then press

the Down directional button.

Reversing the Directional Buttons

Celestial objects appear to move through the sky differently

when viewed through telescopes and/or accessories of dif-

ferent designs. For example, if an object viewed through a

refractor appears to migrate towards the left-hand side of an

eyepiece’s field of view, it will appear to migrate towards the

right-hand side of an eyepiece’s field of view in a reflector

telescope.

In order to make viewing and tracking objects convenient,

regardless of telescope design, the dual-axis controller fea-

tures a “reverse” function which reverses the direction of the

hand controller’s directional buttons. This way you can match

the directional button to the way the object actually moves in

the telescope eyepiece.

To reverse the direction of the Left and Right directional but-

tons, press and hold the Slow speed button then press the

Left directional button. To reverse the direction of the Up and

Down directional buttons, press and hold the Slow button

then press the Up directional button.

Once you have reversed the directional buttons, the dual-axis

controller will save the reversed settings until it they are man-

ually changed again. Turning the power off will not affect the

directional button setting last entered.

Northern or Southern Hemisphere Operation

The dual-axis hand controller is capable of operating in either

Northern or Southern Hemisphere viewing locations. The sys-

tem is set up for Northern Hemisphere locations by default, so

if you are viewing from a Northern Hemisphere location, it is

not necessary to make any setting changes.

For the dual-axis controller to properly track celestial objects

in the Southern Hemisphere, press and hold the Down direc-

tional button and then press the Set button while powering

on the mount. Release the Set button after the mount has

successfully powered on and the Guide button begins flash-

ing. The controller will now operate properly in the Southern

Hemisphere. You can switch back to Northern Hemisphere

mode by using the same button combination. As long as the

controller is operating in Southern Hemisphere mode, the Set

button will illuminate.

Power Conservation

In the interest of conserving the amount of power drawn by the

Atlas EQ-G mount, the Dec. motor will enter a “sleep” mode if

left idle for a period of 15 seconds. In “sleep” mode, the Dec.

motor stops completely and the amount of used power drops

by about 40%. To reactivate the Dec. motor, press the Up or

Down directional button.

Upgrading your Atlas EQ-G

While the dual-axis hand controller provides many useful

functions such as celestial object tracking and motorized

motion control, there is a GoTo hand controller for the Atlas

EQ-G available from Orion. The features and functions of the

GoTo hand controller are explained in the following section.

If you are interested in upgrading your Atlas EQ-G to a GoTo

system, call our Customer Service department at 800-676-

1343 or visit our website at www.OrionTelescopes.com for

more information.

8. The Atlas EQ-G GoTo

Hand Controller

The Atlas EQ-G mount equipped with the GoTo hand control-

ler provides easy, computerized location of thousands of night

sky objects such as planets, nebulae, star clusters, galaxies,

and more for viewing through your telescope. The GoTo hand

controller and internal dual-axis motors allow you to automati-

cally point your telescope at a specific object, or tour the skies

with pushbutton simplicity. The user-friendly menu allows

automatic slewing to over 13,400 objects. Even inexperienced

astronomers will find themselves quickly mastering the vari-

ety of features the GoTo hand controller offers in just a few

observing sessions.

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Orion ATLAS EQ-G User Manual Page 10

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