Rainbow

Thankyou to pal Kath for stopping to see if I was okay when I got off my bike to snap this beauty before it disappeared. I did momentarily consider keeping going because the rainclouds were coming across on a strong wind behind me and riding was wobbly, but I'm a sucker for rainbows. If you look at it in large, there is another kind of refraction going on to the right, perhaps someone knowledgeable in these things could explain it please? I also like how the rainbow comes out of the power station to the right!