"Wang said that the spectators were mesmerized by the stunning view, which lasted about a minute and could be seen from various angles. However, this meteorological anomaly is actually an optical illusion caused by light refracted through certain media. In this case, the layered glass from the hospital window. The seven suns are virtual images created by each pane of glass."

"The unusual sight that lasted for about a minute encouraged many spectators to capture the event. The Vice President of the Sichuan Amateur Astronomy Society, Zeng Yang, said the phenomenon was a common optical illusion caused by light being refracted and reflected from layered glass."

"Each additional layer of glass creates another virtual image. Sometimes, even with the same glass panel, the number of virtual images can vary depending on the viewing angle," explained Zeng. "The report noted that some suns in the video appeared upright and looked dimmer, a characteristic consistent with the reflection and refraction of light that creates virtual images."