Celestron Compustar Manual de instrucciones descargar pdf (Pagina 29)

Figure 16. The assembled autoguider relay box. The coiled RJ-11 input cable with its

modular jack at bottom center is not connected to the autoguiding computer in this

illustration (see Figure 7 for illustration of that connection). The male DB-9 connector is

plugged into the central port on the Compustar computer module. The computer module is

not powered up in this illustration.

Enabling The Autoguider

Compustar users will be familiar with the usual speed settings on the Computer module. These

settings affect the speeds at which the four motion control buttons on the upper right corner of

the computer module move the telescope mount. All speeds are selected by first pressing the soft

key for “SPEED” and then pressing the soft key for the desired speed. The most commonly used

speeds are “SLEW” and “SET”. “SLEW” is the high speed setting used to move the telescope

rapidly from one object or position to another. The Computer module beeps once when “SLEW”

speed is selected. “SET” is the slower speed used to center objects in the eyepiece or tour around

the field of view and its vicinity. The computer module beeps twice when “SET” speed is

selected. Astrophotographers may also know a third speed setting, which is “GUIDE”. “GUIDE”

sets the speed to a fraction of the sidereal rate that would permit an astrophotographer to

manually guide using the four motion control buttons while monitoring a guide star through

either a separate guide scope or an off-axis guider. The Computer module beeps three times

when this speed is selected.

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Celestron Compustar Manual de instrucciones Pagina 29