SH2-112 is also known as LBN 337. It is a diffuse emission nebula located about 5,600 light-years away. It resides in the constellation of Cygnus. Specifically it’s the bright, circular region near the center. But, it’s clear that this is just one small part of a much larger cloud of gas. It just happens to be heavily radiated and so glows much more brightly.
The circular region of HII with dark dust rifts can be seen on the western side. I find that it loosely resembles a cross between the Pacman and Rosette nebulae.
I imaged this using an Antlia broad-band light pollution filter. I connected an ASI071MC OSC camera to a RC8 telescope. The telescope was riding an EQ6r Pro mount. This image consists of 314 180s subframes, or 16.5 hours of exposure.
It is located in a portion of the Orion Spiral Arm that is noted for areas of rich star formation. It does not seem to have an NGC entry, nor does it have a common name that I could find. I have found quite a few sample images of this target on Astrobin. However, it is clearly not well-known in the astro-imaging circles.
