These data have been on my hard disk for almost 3 years. I thought they had been acquired with a now-obsolete beta driver for my Kepler camera TheSkyX, and that I didn't have any matching calibration data. Thankfully I looked at them a bit closer and the FITS header makes it clear that my notes were wrong and it was actually an ASCOM driver.

So I've been able to calibrate and process them.

The Pelican Nebula, IC5067, is adjacent to the North American Nebula, NGC7000, and separated from it by a molecular cloud filled with dark dust. This is Lynds' Dark Nebula, LDN 935. In this image, the North American Nebula is out of the frame, and to the lower left. The whole assembly is known as Westerhout 80, a large region of ionised hydrogen. This is a star-forming region.

The star responsible for ionising and energising the gases within these two bright nebulae was long a mystery, but was resolved in 2005: the responsible star is masked by the LDN 935 and shows up only a 13th magnitude star. It is out of the frame of this image.

The bright rim of the nebula shows a few tendrils, like the prominent one just above the centre of the image. These are remaining columns of dust in the face of stellar winds from one or more stars outside the image. The new star at the tip of the upper-centre tendril is emitting jets of gas to the side. It's a so-called Herbig-Haro object. The sideways jets are both bent to the right by the same stellar winds which are creating the tendril. The generic name for these tendrils is "elephant's trunk".