Re: M31 closeup
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There's probably a way to do it by taking thousands of very short exposures with a noise-free CMOS camera and stacking them, similar to what planetary imagers do. back then I was using an old ST10 camera with 7.4 micron pixels and quite noisy to boot. I bumped the 10" to F22 with a Barlow to get the image scale up. I think this one was 10 x 5 minute exposures, so it was definitely affected by seeing.
From: Jeff B <mnebula946@...>
Sent: Fri, Oct 15, 2021 10:08 am
Subject: Re: [ap-gto] M31 closeup
Pretty cool Roland. Very nice. The glob is obviously non-stellar in your old image and on the edge of resolving the outer stars. I bet the 12" with the latest cameras just might "get there". Nice comparison with the Hubble shot.
On Fri, Oct 15, 2021 at 10:39 AM thefamily90 Phillips <thefamily90@...> wrote: