Composite of the Kajaani display photos

With the diamond dust season soon on our doorsteps, 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.

High sun halo display in Bolivia

Louise Emmons sent these two photos of a halo display seen on 9 October, in Noel Kempff national Park North-Eastern Bolivia. The halos are a bright circumscribed halo, a probable 46° infralateral arc and parhelic circle.

"It was one of the most amazing phenomena that I have seen in my life, together with a total solar eclipse with ground waves and an immense fireball", writes Emmons.

The display lasted at least for half an hour. In about 6-8 h it was followed by a strong rain front.