Surplus to requirements

I know, it's nearly the same as the shot I posted the other day, but I hope you'll forgive me anyway ;)

As you can see there's a nice rainbow in this one. In addition to the usual red-orange-yellow-green-blue-indigo-violet progression, if you look on the left hand side, beneath the violet you should be able to see another green band, and possibly a magenta band beneath that too.

The extra bands form what's commonly known as a supernumerary rainbow.

Did you know that if there's a second outer rainbow, the colour sequence is reversed on that one? I didn't until I read it, and then saw one. For some reason I'd always assumed that the order would be the same, and never bothered to check!