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Old 03-06-2015, 03:23 PM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,450
Quote:
Originally Posted by multiweb View Post
That fov is insanely huge and pinpoint from corner to corner. Very cool.

Regarding the AO discussion I agree with mount correction and improved guiding with a tilt/tip system but I honestly can't see how seeing related to one star in the center of the fov could possibly correlate to the stars on the entire field so I still think Gaston has a point.

My tilt/tip does a great job on narrow field with a smallish sensor.
Thank you Marc, your comments are as always appreciated. Re: the AO-X
I suspect there are several factors at work, and subscribe to the theory if the seeing is "slow" then the correlation can be high across a good sized aperture.

I also have no doubt virtually instant and accurate guiding corrections by deftly moving few tens of grams of AO, rather than 100kg of telescope/counterweights/mount pays a dividend. However you cut it, tighter and brighter stars is the result I see time and time again.

By the way, I was guiding at a slovenly 2Hz...sadly a brighter guidestar was not available.
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