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Tube Clamp Tightening Knob Dovetail Mounting Bar Figure 2-5 8 If you wish to change the orientation of the star diagonal, loosen the thumbscrew on the eyepiece adapter until the star diagonal rotates freely. Rotate the diagonal to the desired position and tighten the thumbscrew. T TTh hhe ee E EEy yye eep ppi iie eec cce ee The eyepiece, is the optical element that magnifies the image focused by the telescope. The eyepiece fits either directly into the focuser (114mm and 130mm models) or into the star diagonal (60, 80, or 102mm models). To install the eyepiece: For 60, 80, and 102mm models: 1. Loosen the thumbscrew on the star diagonal so it does not obstruct the inner diameter of the eyepiece end of the diagonal. Remove the protective dust cap from the star diagonal's barrel. 2. Slide the chrome portion of the low power 25mm eyepiece into the star diagonal. 3. Tighten the thumbscrew to hold the eyepiece in place. To remove the eyepiece, loosen the thumbscrew on the star diagonal and slide the eyepiece out. Focus Knob Eyepiece Adapter Star Pointer Finderscope Star Diagonal Eyepiece Figure 2-6 – Visual accessories for the NexStar 60, 80 & 102 models For 114 and 130mm models: 1. Loosen the thumb screw on the eyepiece adapter at the end of the focuser barrel and remove the protective dust cap from the focuser barrel. 2. Slide the chrome portion of the low power 25mm eyepiece into the eyepiece adapter. 3. Tighten the thumbscrew to hold the eyepiece in place. To remove the eyepiece, loosen the thumbscrew on the eyepiece barrel and slide the eyepiece out. Eyepieces are commonly referred to by focal length and barrel diameter. The focal length of each eyepiece is printed on the eyepiece barrel. The longer the focal length (i.e., the larger the number) the lower the eyepiece power or magnification; and the shorter the focal length (i.e., the smaller the number) the higher the magnification. Generally, you will use low-tomoderate power when viewing. For more information on how to determine power, see the section on “Calculating Magnification.” Barrel diameter is the diameter of the barrel that slides into the star diagonal or focuser. The NexStar uses eyepieces with a standard 1-1/4" barrel diameter. Star Pointer Eyepiece Focuser Eyepiece Adapter Figure 2-7– Visual accessories for the NexStar 114 & 130 F FFo ooc ccu uus ssi iin nng gg To focus your telescope, simply turn either of the focus knobs at the eyepiece end of the optical tube (see figures 2-6 and 2.7). Turn the focus knob until the image is sharp. Once sharp, turn the knob towards you to focus on an object that is closer than the one you are currently observing. Turn the knob away from you to focus on a more distant object than the one you are currently observing. T TTh hhe ee S SSt tta aar rr P PPo ooi iin nnt tte eer rr F FFi iin nnd dde eer rrs ssc cco oop ppe ee The Star Pointer is the quickest and easiest way to point your telescope exactly at a desired object in the sky. It's like having a laser pointer that you can shine directly onto the night sky. The Star Pointer is a zero magnification pointing tool that uses a coated glass window to superimpose the image of a small red dot onto the night sky. While keeping both eyes open when looking through the Star Pointer, simply move your telescope until the red dot, seen through the Star Pointer, merges with the object as seen with your unaided eye. The red dot is produced by a light-emitting diode (LED); it is not a laser beam and will not damage the glass window or your eye. 9 The Star Pointer comes equipped with a variable brightness control, two axes alignment control and mounting brackets. Before the Star Pointer is ready to be used, it must be attached to the telescope tube and properly aligned: Altitude Adjustment Knob On / OFF / Brightness Switch Glass Window Battery Dovetail Mounting Bracket Azimuth Adjustment Screw (Adjustment knob located on opposite side) Mounting Screw Figure 2-8 – The StarPointer Finderscope with Mounting Bracket S SSt tta aar rr P PPo ooi iin nnt tte eer rr I IIn nns sst tta aal lll lla aat tti iio oon nn 1. Slide the Star Pointer onto the dovetail mounting platform on top of the focuser assembly so that the sight tube is facing towards the front of the tube. 2. Tighten the mounting screw to secure the Star Pointer in place. 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. To align the Star Pointer finderscope: 1. Before using the StarPointer, you must first remove the protective plastic cover between the battery and the battery clip. 2...

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