Narrowband image of an H-II emission nebula in the constellation Cygnus; only part of the nebula is visible since it is too large to fit entirely in the field of view of the telescope. 2,590 light-years distant and 90 light-years across.
Imaging: Telescope - Celestron 11" Rowe-Ackermann Schmidt Astrograph; Camera - ZWO ASI2600MC one-shot color with ZWO Duo-Band filter; Guiding - Borg 50mm guidescope with Starlight Xpress Ultrastar guide camera