Located in the tail of the constellation Cygnus lies the nebula NGC 7000, nicknamed the North America Nebula due to its resemblance to the North American continent. NGC 7000 is part of an interstellar cloud of ionized hydrogen (an H II region) and is situated approximately 2,200 light-years from the Solar System. At its core lies an area with particularly striking structure: the “Cygnus Wall” nebular complex, a region where numerous young stars are forming.
The SHO composite we adopted highlights these structures through Hα and Sii emissions, set against a bluish background provided by Oiii.
At the very top of the image, within LDN 935, along the dark dust lane, a faint reddish glow draws attention. These are Herbig–Haro objects (HH 655 and HH 656). Quite unusually, these two objects exhibit strong emission lines in Sii and Oiii, but only weak emission in Hα.
Between the Earth and the nebula lies a band of interstellar dust that absorbs part of the light from the stars and the nebula behind it, shaping the appearance we observe. These dark dust clouds form magnificent structures, sometimes streaked by interstellar winds, which occasionally reveal a rich palette of colors in the background
Total : 29h 10′
– Ha : 8h 20′
– Oiii : 10h 30′
– Sii : 10h 20′
– 400mm focal length
– Bortle 1