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astro_baby
scholastic sledgehammer
Reged: 06/17/08
Loc: United Kingdom
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Hubble artificial star
#5612050 - 01/08/13 02:20 PM
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Forgive if this has been done before but a fellow astronomer put me on to this and I have found it pretty good. It might not be the bong for thorough analysis but i found it pretty useful this evening to test collimation on a frac after a conventional cheshire gave very misleading results...
http://www.hubbleoptics.com/artificial-stars.html
Its a budget artificial star. Its a little plasticky but for $24 delivered you cant complain much. Shipped fast too all the way from China in a few days.
Worked a treat for me checking the alignment of a diagonal and also checking of a focuser needed a bit of shimming.
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