It was cloudy on Saturday night, but Sunday night I decided to try out another run at the Cygnus Milky Way.
I have a decently large target list of nebulae that are in the area, but actually a lot of them are in Cepheus (which is not really up far enough to shoot right now), so I thrashed around a little before settling on the nebular complex that includes Sharpless 115, 116, and 112. These 3 nebulae lie near Deneb, on the other side of the star from NGC7000 (The North America nebula).
Like I’ve done for the past few photos, I started the images as soon as I could after dark, then left the mount running all night. By sunup, I had captured 16 frames of 20 minutes each (that’s 5h 20m). Here is the result:
A reminder that the reason these latest images are in B&W is because I’m shooting through a narrowband (13nm passband) Hydrogen-alpha filter. So my full-color images coming out of the DSLR only have data in the “red” channel of the image (the “green” and “blue” channels are essentially empty of useful data). I can go back and re-shoot these objects unfiltered, then use that RGB data to turn these into color images. But for now, all I have is a red channel, so the images appear as levels of grey representing the amount of red data in the image.
One thought on “In search of more Cygnus nebulosity — Sh2-115, 116, and 112”