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Thread: Imaging over multiple nights

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    Default Imaging over multiple nights



    I just got in from a night of imaging with my new guiding system for the first time. Unfortunately, I waited until tonight to learn how to set it up and use it as well. So it was well after midnight before I got to imaging. I wasn't able to collect very much data on my targets before they were behind trees and houses. I was going for M8 and M13. I got about 20ish minutes each at 3 minute exposures.

    I always save all my subs and calibration files because I have read that you can add more subs at later dates. I have a few questions about this.. Do all the subs collected over multiple days have to be the same exposure and ISO or do you stack them separately and then combine them differently? I could probably ask a million different questions about it, so if I could just get a run down of how its done or a good link to a site that explains the process.

    Thanks.
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    Damian
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    Default Re: Imaging over multiple nights

    I've not tried that process and so cannot tell you for sure how that should work. Hopefully others will have better for you.

    I think this question would likely best be asked and answered in our "Astro Imaging Forum" and I'm going to move it there for you.
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    Default Re: Imaging over multiple nights

    I found the answer.. I realize that I wrote the original post at close to 5am after imaging all night, so I might not have been clear in my question...

    In DSS, I discovered the Group Tabs at the bottom of the program. This will solve all the questions I had about stacking different exposure times, and also stacking the same exposure times from different nights and keeping each group of images' darks and flats together with their own subs..

    Much easier than I thought it would be.. Just wanted to post this follow up if anyone else is asking the same question..
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    Default Re: Imaging over multiple nights

    Hi Damian, as your using a DSLR and DSS you might want to try a free program called "Dark Master", assuming you have all your Dark frames stored in a libary it can output a file that creates those tabs in DSS that groups together differing exposure Light frames with their temperture matched Darks ready to have your Bias & Flat frames added.
    Testgear likes this.
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