What is the sun halo?

Recently, many people have captured the phenomenon of a bright halo around the Sun and wonder what it is? Is it a rainbow? Or is it a "strange sun"? To explain this, please refer to the article below.

In fact, the big light around the Sun is not a circular rainbow. It is merely the result of a common optical phenomenon in nature: light refraction.

This light is called "Sun halo".

Specifically, this halo is called "Sun halo". During the day, the sun shines through cirrus clouds (Cirrostratus) at an altitude of 6-8 km. Because this cloud has a crystal structure, the refracted light makes the halo appear with the same color as the rainbow we often see.

However, the secret to distinguishing these two phenomena is that the rainbow and the "Sun halo" have a contradictory color arrangement.

Round rainbow has the color from outside to inside is red-orange-yellow-green-blue-indigo-violet . and the color of the Sun halo is arranged in reverse

According to experts, this halo can actually appear at night and is called the "Moon halo". At the same time, they argue that this phenomenon is completely unrelated to disaster warning signs as many people associate. Even observing the bright halo shows good weather, sunny, dry and clear sky.