The North American Nebula, also known as NGC7000 is an emission nebula in the constellation of Cygnus. It's named because it resembles a map of North America (the black area at bottom left of this image would be Hudson Bay). This is a fairly large structure - it covers an area of sky about 4 times the diameter of the full moon, but is invisible to the naked eye because it's very dim.
Imaged here in narrowband, three separate images were made; each image was filtered to permit only very specific wavelengths of light to pass. Those wavelengths equate to Hydrogen α (green), Sulphur II (red) and Oxygen III (blue). The three images are then combined to form the colour image you see here.
Visit the Gallery
If you're looking for beautiful wall art for your home or office, look no further than my gallery in Killarney, Co. Kerry.
My friendly and helpful staff will assist you in making your selection, and we ship worldwide.
Click the link for a virtual tour of the space, and be sure and drop in if you're in the area.
Find Out More
Love photography? Want to learn how to produce images like this yourself? Check out my sister site, Elevation, where I list the photography tours and workshops that I organize.
I run trips within Ireland and abroad. Past destinations include Iceland, Greenland, Svalbard and the Faroe Islands.