M51 region, HOO starless RGB stars

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Astrobin :

Integration of HOO starless and RGB stars masters; luminance added by Ha channel.

Narrowband Ha and Oiii subframes at 180″ -20C, gain 173 and gain 139. LRGB subframes at 60″.

Subframe list available here

M51framelist08062023Download
Art, Asiair Plus, AsiAir Pro, Astronomic B 1,25" filter, Astronomic G 1,25" filter, Astronomic Ha 1,25" filter, Astronomic Luminance 1,25" filter, Astronomic Oiii 1,25" filter, Astronomic R 1,25" filter, Astrophotography, Deep Sky, Deepsky, M51, Narrowband, Optolong Lpro 1,25", Sky-Watcher EQM-35 Pro Synscan GOTO, William Optics Redcat 51, William Optics v1.5 RedCat 51 APO, Xiuart, ZWO ASI120mm Mini, ZWO ASI1600mm Pro, ZWO EFW 8x1,25"