Why dawn and dusk complicate naval observation

Is recognizing ships at dawn or dusk even harder when looking toward the sun?

Yes. Transitional light already disrupts visual adaptation and shape recognition, and direct sunlight makes horizon scanning worse.

The question extends the Sacheon discussion from maneuver into human perception. At dawn and dusk, the eye is not fully adapted to either bright or dark conditions, so distant forms become harder to distinguish. Looking toward the sun worsens the problem and can make horizon scanning especially unreliable. This short daily interval can still shape detection, recognition, and the success of deception at sea.