|Moonlight Circumzenithal Arc by Lauri Kangas (photon-echoes) Ontario, Canada October 13, 2008. ©LauriKangas, shown with permission.
"I went out to check the skies after dark and saw the brightest lunar CZA that I have ever seen. I was amazed at the colours in the photo. There is absolutely no processing of the image other than size scaling."