The Cygnus Wall is the most prominent part of the North America Nebula (NGC7000). It is a star forming region and about 20 light years long.
The Swan Nebula, also known as Omega Nebula, is an H II region in the constellation Sagittarius, between 5,000 and 6,000 light years distant. It is one of the brightest and massive star-forming regions in the Milky Way.
