Taken from the bridge of a small LPG tanker at the entrance to the Houston Ship Channel in the Gulf of Mexico.
We've had pretty active phosphorescence for the last couple of nights.
The neon glow is the bow wave. The lights on the horizon are ships
at anchor waiting for a berth in Houston. To make the photo I set the
ISO to 1600, aperture to f/2.8, and made a 30 second exposure holding
the camera by hand against the bridge window. The window proved
pretty steady and the ship itself came out as sharp as could be
expected considering engine vibration. The movement of lights on the
horizon is caused by the motion of the ship itself due to a small
swell and course correction by the helmsman.