A few days ago, a man in Sichuan, China filmed a rare video of two suns appearing at the same time. He saw two suns hidden in the clouds.
Immediately after the video was posted, it sparked heated debates online. People left comments such as: “No wonder the weather is so hot these days”, “So the legend of nine suns is true?”, “Are we in a science fiction novel?”
So why is there a phenomenon of multiple suns appearing at the same time?
It is an atmospheric optical phenomenon called “Parhelion”. The optical phenomenon appears when the sun approaches the horizon.
When a virtual sun appears, light is refracted through ice crystals in the air and forms halos like a real sun.
Parhelion usually appears at an inclination of 22 degrees to the sun, due to the angle of refraction of the light rays.
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