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d. Star testing the collimation
With the collimation performed, you will want to test the accuracy of the alignment on a star. Use the MA 25mm eyepiece and point the telescope at a moderately bright (second or third magnitude) star, then center the star image in the telescope’s
•Bring the star image slowly out of focus until one or more rings are visible around the central disc. If the collimation was performed correctly, the central star disk and rings will be concentric circles, with a dark spot dead center within the
Remove adhesive backing
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Fig. 7: Diagonal Assembly.
shadow.)
•If the
•To adjust the primary mirror tilt screws (3, Fig. 8), first unscrew several turns the 3
•Using the flexible cable controls (3, Fig. 1e and 4, Fig. 1a), move the telescope until the star image is at the edge of the
•As you make adjustments to the primary mirror tilt screws (3, Fig. 8), you will notice that the
•If any further adjustments are necessary, repeat this process as many times as needed until the out-
•With the star testing of the collimation complete, tighten the 3
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Fig. 8: Primary Mirror Cell.