Imaged from Beckwith Township, ON, Canada.

The North America Nebula (NGC 7000 or Caldwell 20; or Sharpless 117) is an emission nebula in the constellation Cygnus, close to Deneb (the tail of the swan and its brightest star). The remarkable shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. It is sometimes incorrectly called the "North American Nebula".

he North America Nebula is large, covering an area of more than four times the size of the full moon; but its surface brightness is low, so normally it cannot be seen with the unaided eye.

The North America Nebula and the nearby Pelican Nebula (IC 5070) are parts of the same interstellar cloud of ionized hydrogen (H II region). Between the Earth and the nebula complex lies a band of interstellar dust that absorbs the light of stars and nebulae behind it, and thereby determines the shape as we see it. The distance of the nebula complex is not precisely known, nor is the star responsible for ionizing the hydrogen so that it emits light. If the star inducing the ionization is Deneb, as some sources say, the nebula complex would be about 1,800 light-years' distance, and its absolute size (6° apparent diameter on the sky) would be 100 light-years.

Ref. Wikipedia

Shot using a modified (full spectrum) Nikon D5300 with a HEUIB_II UV-IR cut filter; a William Optics RedCat 51 Petzval Lens/Telescope with helical focuser (250mm focal length/ f/4.9); ISO 400; Skywatcher EQ6-R equatorial mount; guiding with a 60mm guidescope and Altair GPCam2-IMX290 guide camera and PHD2.

30 x 6 minute subs for a total integration of 180 minutes.

Stacked and Processed using Pixinsight and Photoshop CC 2018.

Special thanks to Rudy Pohl for his guidance with respect to star reduction.