Nganong naa may rainbow sa SUN karon?

Why is there a rainbow around the sun ?

You’ve all seen rainbows on those days where it's raining and the sun's out at the same time. But what about those times when you see a rainbow-like halo around the sun or moon?

It's the same physics, really. The halos (or, sometimes known as "sundogs" around the sun) are usually seen when there are high clouds overhead. Those clouds are made of tiny ice crystals, which will refract the sunlight much like a prism will. And voila! You have a rainbow halo around the sun. It works the same way with moonlight. It's usually a sign that rain is on the way, as high clouds usually precede a storm front.