Two large emission nebulas found by the star Deneb in the Cygnus constellation.

The blackness of the Gulf of Mexico can be seen in the left nebula.

These nebulas are represented by the Hydrogen alpha wavelengths from the optical filter.

at Rancho Caņada del Oro Open Space Preserve

A stack of 14 one-minute frames and stretched in Photoshop.

23:34 PDT
Bortle Class = 4 (rural/suburban)
Moon Illumination = 0%