Quote:
Originally Posted by Octane
Hi Slawomir,
Those values are indeed in arcseconds, as taken directly from PixInsight's SubFrameSelector script's output. I make use of Drizzle on my binned RGB data. It has worked incredibly well for me!
Hi Ray,
Thanks for the explanation! I understand that I'm heavily undersampled at 3.5"/pixel. Even if it's not a truly useful measure in my case, do the values I've quoted (which are actually quite typical, across my data) mean that I have reasonable seeing in my location? Mind you, I only image between 45 degrees either side of zenith. This isn't even in my control, as I've specifically told my automation software to only image between those altitudes.
H
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As Slawomir points out, about the best you can say is that the seeing is probably better than 6 arcsec, which is not saying much. It could of course be much better than that, but by undersampling, you cannot tell.
This is one major advantage of undersampled imaging - you can get the same results whatever the seeing is like.