Why are there many moons in the sky? On the evening of Thursday, 20 1 1 May/9, 2008, eight moons appeared in the sky, and then came to 13 moons, all of which disappeared around 10:50.

Perhaps this is the "Gengetsu" phenomenon in meteorology.

Gengetsu this phenomenon often appears at the same height of the moon, forming colored light spots at 22 degrees on both sides of the moon. Gengetsu is caused by a thin cloud of hexagonal ice crystals, in which the moonlight passes vertically through the main axis. When there are clouds, the main axes of ice crystals are arranged randomly on the plane perpendicular to the moonlight. Its production depends on the weather, and it is usually easy to form in the morning or evening. Among the many moons you see, only one is the real moon, and the others are the refracted light and shadow of the real moon.

"Gengetsu" is a very rare spectacle. You are so lucky. I wish I could see it. I really dreamed about it!