A vast area of glowing hydrogen exists in Cygnus. This image was taken using white light as well as a wideband hydrogen filter. The small fairly bright nebula in the lower center part of the frame is the Crescent Nebula.
This area of the sky is quite large. It encompasses the area around the North America Nebula, Pelican Nebula and the Crescent, so this is actually only a small part of the cloud.
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