The optical properties of long-lived luminous formations

Luminous formations initiated by electric discharge appear differently depending on the intrinsic luminosity, external illumination, and the background color. These formations simultaneously exhibit four colors: red, yellow, violet, and blue. These colors are known to be typical of the ball lightning (BL) possessing, according to the available statistics [1], a short lifetime. At the same time, it was stated [2] that there is BL of two types: short-and long-lived. Based on the results obtained, it is suggested that the short-lived BL must also exhibit all four colors simultaneously.