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Martin et al,
You mention "" reduced number of pixels that make up the star"
That's the point I'm trying to make....
If your seeing is 2 arcsec then an "ideal" star would be contained in a 3 x 3 pixel matrix
In the meantime the guide star would still not even be covering pixel!
If the guide stars look bigger than 1 pixel then the guiding can't be < 2 arc sec.
(The size of the seeing disk (in micron) vs the guide pixel size I see as an issue. Just my 2c)
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