rainbow arc
Sky's prismatic bend
A rainbow arc is the curved band of colors that appears in the sky when sunlight refracts through water droplets—the visible portion of a rainbow's circle.
The term emphasizes the arc shape, since rainbows are actually full circles but the horizon typically blocks the lower half: A faint rainbow arc appeared as the storm cleared.
- spectrumContinuous range of values
- color spectrumVisible wavelength continuum
- prismLight-splitting optical element
- colorsVisual spectrum variations
- curveSmooth, angleless line
light · refraction · light refraction · optical illusion · sky · sunshine · iridescent · bands · violet · indigo · red · pot of gold · leprechaun · promise · bridge · shimmer · droplets · mist
linear geometry
rainbow arcstraight line
Undeviated continuous path
line segment · ray · beam · straight edge · horizontal line
rainbow, arc, rainbows, arcs, arced, arcing, arcuate, arcade, arch