Looks good Scott, with that typical ASi1600 smoothness. Sixty seconds is plenty for luminance of the Lagoon, and it's my standard for LRGB with that camera. Ray (Shiraz) produced an exposure chart a while back for different gain settings which you might find interesting. Although I have to admit I have pretty much standardised on 60" at Unity for broadband and 300" at Unity for Narrowband.
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