Sh2-112 is an emission nebula in the constellation Cygnus. It lies 5,200 light-years from Earth. It has dark dust clouds along its western edge. It is also designated Lynds Bright Nebula 337. The bright blue star BD +45 3216 is ionizing the nebula.

Exposures: Ha:L:R:G:B =510:1590:85:85:85 minutes = 39 hours, 15 minutes total exposure, completely unguided.