Quote:
Originally Posted by alpal
Dim targets will always require a lot of time.
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Not as long as you might think, in terms of individual sub length...
Quote:
Originally Posted by RickS
Yes, but that's total integration time, not sub length. If there is no read noise then 60,000 x 1 second subs gives you the same SNR as 100 x 600 second subs.
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This ^
As for the OP, I'm not so sure. Isn't the whole sales pitch of AO that you can perform corrections multiple times per second? Even if you're down to 5 second subs, there might still be some benefit there.