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The NexStar has four direction buttons in the center of the hand control which control the telescope motion in altitude (up
and down) and azimuth (left and right). The telescope can be controlled at nine different speed rates.
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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 (6º 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 (1x sidereal) and can be used for accurate centering of objects in
the eyepiece and photographic guiding. To change the speed rate of the motors
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Press the RATE key on the hand control. The LCD will display the current speed rate.
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Press the number on the hand control that corresponds to the desired speed. The LCD will display "NexStar
Read " indicating 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
approximately 1.5º per second (equal to rate 7 on the hand control). This feature will not function if the telescope is
currently set at a speed rate of 8 or 9.
The slower slew rates (6 and lower) move the motors in the opposite direction than the faster slew rates (8 and 9). This is
done so that an object will move in the appropriate direction when looking into the eyepiece (i.e. pressing the right arrow
button will move the star towards the right in the field of view of the eyepiece). However, if any of the slower slew rates
(rate 6 and below) are used to center an object in the Star Pointer , you may need to press the opposite directional button to
make the telescope move in the correct direction.
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The NexStar contains many user defined setup functions designed to give the user control over the telescope's man
advanced features. All of the setup and utility features can be accessed by pressing the MENU key and scrolling through the
options
Tracking Mode
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1 = 1x (sidereal)
2 = 2x
3 = 8x
4 = 16x
5 = 64x
Nine available slew speeds
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This allows you to change the way the telescope tracks depending on the type of mount
being used to support the telescope. The NexStar has three different tracking modes
This is the default tracking rate and is used when the telescope is placed on
Alt-Az
a flat surface or tripod without the use of an equatorial wedge. The
telescope must be aligned with two stars before it can track in Alt-Az.
6 = 128x
7 = 1.5º / sec
8 = 3º / sec
9 = 6.5º / sec
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