Definition
A solar halo is an optical phenomenon, a ring of light around the sun. ☀️ It's like a celestial crown! These halos are caused by sunlight refracting through ice crystals in high-altitude cirrus clouds. Think of it as the sun wearing a sparkly winter coat. The most common halo appears as a bright ring with a radius of 22 degrees around the sun. Sometimes, you might even see colors within the halo. Solar halos are a beautiful and relatively common sight.