AE Picostar artificial star for collimating telescopes
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- Опубликовано: 23 мар 2011
- The Picostar artificial star for collimating telescopes. The Picostar is a sub 50 micron fibre-optic LED artificial star designed primarily to aid the collimation of astronomy telescopes.
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Very well explained. Extremely professional presentation. Great work
Its a shame that you didn't use the actual Picostar product in the collimation demo
Lunar images seem very soft for a quality telescope. Collimation still off?
What brand of digital camera is that?
Hi,
I'm just getting into astronomy and I'm trying to get my head around the vast subject area that is collimation!
I was wondering if I could *make my own* picostar as I have access to optical fibre of varying sizes, as well as fibre optic connectors/ferrules. Any suggestions?
My thoughts would be to affix a white light source behind a single-mode connector (I'm thinking an adjustable maglite mini torch or similar?) and place into a simple housing/box?
Just wanted some clarification on what size you mean when you say 'sub-50um'?
I can get hold of ferrules designed to house 125um fibre with approx. 9um cores?
The fibre endface would be cleaved, and polished to international standards.
Sound feasible?
Hi Steve,
Did you succeeded? I am planning to do something similar... but I don't think that I can make less than 300 µm or so...
I would also like to know the effect of the spot size
Just use a bicycle head or tail light that has one LED. Take the red or clear lens off and they work very good for this purpose.
Are these Picostar units still available? Cannot seem to find anywhere.
Joe, just go with a star test on a real star like Polaris, the north star if you can see it at a power that equals the f ratio of your telescope.
Why you need Picostar artificial star? What is the purpose? You only need the light that come out that is all, why need extra? Do camera have picostar artificial?? If not, then why not? And I notice the gap hole, so you have telescope with a gap that is block, so you show a light with a block. Well, what we see, were you looking at the light of any kind or looking at the star?? So, if ya are looking at the star, so there is a diameter gap that is blocking which show gap hole in a star, right? Need more explain to understand it.