GUM-15/ RCW-32 in Ha + SII

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. :slight_smile:

Acquisition details, etc, and a wider field version on astrobin: