Zoomed-in region of the previous North American Nebula image
I did some research to find out which star was the UV source causing the nebula to glow. It turns out to be a star hidden behind the dark lane of dust seperating the North American and Pelican nebulae (LDN935). The star's name is 2MASS J205551.25+435224.6 (!) and appears as the heavily reddened 13 magnitude object shown. I was also intrigued by the red patch of nebulosity in this image. It turns out to be a Herbig-Haro object - a young star in the process of being born that is ejecting a jet of material from its poles and causing the surrounding molecular cloud to glow.
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