Faint Lunar Rainbow Over Brazilian Gorge Night

Pale starlight spills through thin cloud gaps, illuminating a tropical gorge in Brazil where a faint lunar rainbow arcs across the dark sky. The white arc rests low, barely distinct against the deep indigo of the night, curving gently above the shadowed rock walls. Humid air hangs heavy, visible only as a soft haze clinging to the gorge floor where ground glow reflects off wet surfaces. Cool season temperatures are suggested by the crisp clarity of the stars above. The composition places the faint curve along the upper third line, balancing the dark mass of the canyon below. One star shines brightly near the apex of the arc, marking the highest point of the pale light.