Previously I posted a Ha version of this subject. Now I’ve got SII data to add to it. A test shot showed no OIII so I did not bother with it.
This was taken over 12 different nights for about 25 hours of data. Some got culled in PI SubframeSelector as is the way.
Acquisition details, etc, and a wider field version on astrobin: https://astrob.in/ik7lly/0/