Prisma Storm
a term used by Corran Horn - alias Kieran Halycon - to describe the phenomenon of the changing from night to day on Yavin 4. As Corran discovered, the atmosphere on Yavin4 got very cold as it passed through the shadow of Yavin. Water crystals in the atmosphere would freeze into small crystals. When the mass of Yavin rose and began a new day, the orange light from the planet would be refracted in the billions of water crystals, looking like multicolored lightning in the air.
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