My sincere thanks to all the kind folks who answered my question regarding these nebulae.
Ver-r-r-ry Inter-r-r-r-resting!
Here's one I shot not long ago of the eastern Veil Nebula NGC 6992
Veil Nebula is an old supernova remnant in the constellation Cygnus. It is the remains of cataclysmic explosion of star which exploded between 5,000 and 8,000 years ago. This nebula is about 1,860 light-years distance from our little home.