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Jedd,
I meant to say also that I have no affiliation with the sale of that telescope, it is just one I saw.
As for the photos, you are not quite correct there. No it is 16 photos in total, each photo is a long time exposure of 90 seconds each. The time in between has little to to consequence. So, photo one - open shutter for 90 seconds - close shutter. Photo 2 same deal, but it could be one minute after the first or 10 minutes. the ability to stack the photos means that the highlights are being aligned for each of the photos in order to get more detail from all of the photos combined.
I hope that am right here, I have not done this yet, just read about it all. If I am wrong then hopefully some of the astrophotographers here can chime in and set both of us right.
And have a great christmas and stay safe.
Andrew.
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