Composite of the Kajaani display photos
With the diamond dust season soon on our doorteps, here is a tidbit from last winter. The display was seen in Kajaani on 26 February 2006. It was shortly presented in the blog, but now I made a composite which somewhat better shows the grandeur of the display. On a more technical side, the faintness of the 46 infralateral arc is noteworthy. In simulations this can be obtained with non-regular hexagons. The photos were taken by Kalevi Härkönen, who was at the time walking his dog.