Rare display of eight concentric halos in Tampere, Finland, on 5 June 2008.
On 5 June 2008 there was a rare display of eight concentric halos in Tampere, Finland. I present a preliminary analysis of this display. A brief comparison with earlier major odd-radius displays is made. Short faint arcs intersecting the Sun and their resemblance to the theoretical odd-radius helic arcs are discussed. A stacked image consisting of 72 individual frames of the display is presented. A single frame is provided for comparison, and the visual observation is described in some detail. Postprocessing techniques for halo photographs are discussed. A stacked simulation and the relevant crystal populations are presented.
Luomanen
Jari
J
Department of Management Studies, University of Tampere, Tampere FI-33104, Finland. jari.luomanen@kolumbus.fi