NGC7000, North America Nebula in HOO palette. 8.1 hours integration.
Camera: ZWO ASI1600MMC Gain 200/Offset 50, -15C
Filters: Astrodon 3nm OIII, 5nm Ha
Taken over the nights of 6/5, 6/28, and 8/30/2018.
Processed in Pixinsight, finishing in Lightroom and Photoshop.
Full resolution image on Astrobin: https://astrob.in/367784/0/
Description from WIKI:
The North America Nebula (NGC 7000 or Caldwell 20) 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.
The 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. Binoculars and telescopes with large fields of view (approximately 3°) will show it as a foggy patch of light under sufficiently dark skies.
The portion of the nebula resembling Mexico and Central America is known as the Cygnus Wall. This region exhibits the most concentrated star formation.