The image shows the star Deneb (alpha-Cyg) at the top center which is the tail of the swan. Then name derives from the Arabic word for tail. To the left of this star are the North American Nebula and Pelican Nebula. The star Sadr (gamma-Cyg), which forms the body of the swan, is at the center right. Just to the left of it is the Butterfly Nebula. At the bottom is the star Gienah Cygni (epsilon-Cyg) which forms the part of the eastern wing of the swan.
|Northern Cygnus Region - Canon 60Da, EF 70-200/f4L, 18 x 300s @ ISO-1600, 70mm, f/4|
What is most fascinating to me is trying to grasp a perception of depth realizing that these structures are at very different distances and that we are seeing, not a flat plane of stars, but rather looking down corridors of space between spiral arm structures. An animated 3-D projection would help enormously.