Star Pointer Installation; Star Pointer Operation - Celestron 127SLT User Manual

Celestron 127slt: user guide
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1.
Slide the Star Pointer bracket into the dovetail mounting platform on top of
the focuser assembly (see figure 2-9).
2.
Orient the Star Pointer so that the sight tube is facing towards the front of
the tube.
3.
Secure the Star Pointer bracket by tightening the thumb screw on the
mounting platform.

Star Pointer Operation

The star pointer is powered by a long life 3-volt lithium battery (#CR2032) located
underneath the front portion of the Star Pointer. Like all finderscopes, the Star
Pointer must be properly aligned with the main telescope before it can be used. This
is a simple process using the azimuth and altitude control knobs located on the side
and bottom of the Star Pointer. The alignment procedure is best done at night since
the LED dot will be difficult to see during the day.
1.
Before using the StarPointer, you must first remove the protective plastic cover over the battery (see figure
2-10).
2.
To turn on the Star Pointer, rotate the variable brightness control (see figure 2-8) clockwise until you here a
"click". To increase the brightness level of the red dot, continue rotating the control knob about 180º until it
stops.
3.
Locate a bright star or planet and center it in a low power eyepiece in the main telescope.
4.
With both eyes open, look through the glass window at the alignment star. If the Star Pointer is perfectly
aligned, you will see the red LED dot overlap the alignment star. If the Star Pointer is not aligned, take
notice of where the red dot is relative to the bright star.
5.
Without moving the main telescope, turn the Star Pointer's azimuth and altitude alignment controls (see
figure 2-8) until the red dot is directly over the alignment object.
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