Visibility III / V
I only woke up when I noticed the news of the red rainbow I saw in Päijänne last Saturday, that I also saw it from my window when I went to look at the magnificent purple sky.
When shooting from the inside out in the last rays of the sunset, the arc is not striking in the raw image. With small adjustments to white balance, contrast, and brightness, it stands out better.
Attached and unprocessed image.