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Old 28-08-2012, 05:02 PM
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Shiraz (Ray)
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Join Date: Apr 2010
Location: ardrossan south australia
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Quote:
Originally Posted by tlgerdes View Post
If you have a 2M scope, you will have AO
I'm not an expert - do we have any scopes in Australia with deformable optics? anybody know?

Quote:
Originally Posted by bojan View Post
I don't think so..
We would end up with multiple sets of frames for stacking - and corresponding Signal/Noise ratio improvement, and that's all.
The same thing you can obtain yourself, over couple of nights, collecting larger number of frames.
Yes, bigger telescopes will contribute more data, but data obtained with smaller ones will be rejected anyway in stacking process.
But this approach could enable us to compete with a fair size scope scope (without adaptive optics) in SNR and resolution (atmosphere limited) AND in ability to image a lot of different objects in a given timescale if required, which I cannot do by adding exposures with a single scope. If the atmosphere limits the resolution, which it will for larger scopes (eg about 12inch or above for 2 arcsec seeing), data quality for stacking will be determined only by the seeing. Agree that smaller scopes, where the resolution is not seeing limited, will be excluded.

I guess my basic question is - if we can get to the sensitivity and resolution equivalent of a 1-2m scope without adaptive optics, with a fairly wide field and no possibility of spectrometry, what can we do with it?

Last edited by Shiraz; 28-08-2012 at 05:52 PM. Reason: add a bit
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