Verglowen
Verglowen is a term originating from German that describes the phenomenon of the sky taking on a reddish or orange hue shortly after sunset. It is a visual effect caused by the scattering of sunlight by atmospheric particles. As the sun dips below the horizon, its light travels through a longer path in the atmosphere. This increased distance means that shorter wavelengths of light, such as blue and violet, are scattered away more effectively by air molecules and aerosols. The longer wavelengths, like red and orange, are less affected and are therefore more visible to the observer, giving the sky its characteristic warm coloration.
The intensity and specific shades of verglowen can vary depending on several factors, including the amount