Why is the sky always darker above a rainbow, than below it? 🌈

Question

I’m looking at one right now.

In: Physics

Answer 1

its called “Alexander’s band” it has to do with the way water is bending the light. if you think about how a rainbow works…….the light from the sun is being bent by water in the air; this bending “messes up” our viewing angles

[https://en.wikipedia.org/wiki/Alexander%27s_band](https://en.wikipedia.org/wiki/Alexander%27s_band)