#refraction
What’s happening to this cirrus cloud? Ice crystals are acting like little floating prisms. Known informally as a fire rainbow for its flame-like appearance, a circumhorizon arc appears parallel to the horizon. For a circumhorizontal arc to be visible, the Sun must be at least 58 degrees high in a sky where cirrus clouds present below. The numerous, flat, hexagonal ice-crystals that compose the cirrus cloud must be aligned horizontally to properly refract sunlight in a similar manner. Therefore, circumhorizontal arcs are somewhat unusual to see. The featured fire rainbow was photographed earlier this month near West Virginia, USA.
Image Credit: Christa Harbig
Flora x, may 2022
Flora x, may. 2022
Fused glass suncatchers
Stained glass sunrise
Stained glass starburst
Fused glass suncatcher with soldered edge
Fused glass and water glass
Fused glass and stained glass panel.
Stained glass with fused glass polka dots
Stained glass panel with fused glass drips