A few days ago I saw a particularly good rainbow. I didn’t have my camera but these cell phone pictures work okay, I think.

We have been having quite a lot of “sun showers,” where there’s a mix of rain-laden clouds together with sunny breaks.

The rainbow was in a perfect arc from north to south.

Rainbows are caused by refraction, the same process that produces sundogs. It occurs when light from the sun changes direction while passing through a medium denser than air, such as a raindrop. Refraction can produce some very beautiful sights.

The picture above shows that there was also a faint, secondary rainbow above the more defined one.

Happy rainbow Sunday. 🌈