Hi Reiner,
I have corrected that post as it was the farthest south one and not north. I am apparently easily confused by directions ;-)
I do think that the curious dual double with all 4 stars collinear is an interesting 'base' to identify the field as if those form the base of a 2x to 3x tall triangle with the glow through the center of this triangle and heading SSW from the center of this base.